Net ionic equation of evolved gas through lime water

The mass of aluminum oxide produced is 152.6 grams.

we need to use the balanced chemical equation for the reaction between aluminum carbide and sodium oxide:

2 Al₄C₃ + 12Na₂O → 8 Al₂O₃ + 6Na₂CO₃

From the equation, we can see that for every 2 moles of Al₄C₃ that react, we get 8 moles of Al₂O₃ as a product. Therefore, we need to convert the given mass of Al₄C₃ to moles, and then use the mole ratio to calculate the mass of Al₂O₃ produced.

First, let's convert the mass of Al₄C₃ to moles:

53.8 g Al₄C₃ × (1 mol Al₄C₃/143.96 g Al₄C₃)

= 0.373 mol Al₄C₃

Now we can use the mole ratio to calculate the moles of Al₂O₃ produced:

0.373 mol Al₄C₃ × (8 mol [tex]Al_{2[/tex][tex]O_{3/2}[/tex] mol Al₄C₃) = 1.492 mol Al₂O₃

Finally, we can convert the moles of Al₂O₃ to grams:

1.492 mol Al₂O₃ × (101.96 g Al₂O₃/mol)

= 152.6 g Al₂O₃

To know more about aluminum oxide here

https://brainly.com/question/9496279

#SPJ4

The compound that has a boiling point closest to that of Argon is HF. This is because HF has the strongest intermolecular forces (hydrogen bonding) among the given compounds.

The boiling point of a compound depends on the strength of the intermolecular forces that exist between the molecules. The stronger the intermolecular forces, the higher the boiling point.

The weaker the intermolecular forces, the lower the boiling point. The boiling point of Argon is -186°C. Out of the given compounds, the boiling point of HF is the closest to the boiling point of Argon.

The boiling point of HF is -83.8°C. This is because HF has hydrogen bonding which is the strongest intermolecular force among the given compounds. The other compounds such as Cl2, F2, HCl, and NaF, have weaker intermolecular forces than HF. Therefore, they have a lower boiling point than HF.

Learn more about HF here:

https://brainly.com/question/14581360#


#SPJ11

To support a point of view on the informal qualifications for membership in the House of Representatives, we can refer to the Constitution

According to Article I, Section 2 of the U.S. Constitution, a representative must be at least 25 years old, a U.S. citizen for at least seven years, and a resident of the state they represent at the time of their election. These are the formal qualifications for membership in the House.

However, there are also informal qualifications that are not spelled out in the Constitution but are still important factors in obtaining a seat in the House.

Learn more about membership in the House:https://brainly.com/question/470793

#SPJ1

The osmotic pressure of a solution made by dissolving 7.19 g of glucose in 18.9 ml of solution at 17.4°C can be calculated using the formula: Osmotic Pressure (atm) = Molarity (M) × Gas Constant (R) × Temperature (T).

Molarity = (Mass of Solute/ Molar Mass of Solute) / Volume of Solution
= (7.19 g / 180.2 g/mol) / 18.9 ml
= 0.3999 M

Gas Constant (R) = 0.08206 liter atm/mol K
Temperature (T) = 17.4°C + 273.15 = 290.55 K

Therefore, Osmotic Pressure (atm) = 0.3999 M × 0.08206 liter atm/mol K × 290.55 K
= 0.983 atm

The osmotic pressure of a solution is the hydrostatic pressure required to balance the osmotic pressure of a solution. This is determined by the concentration of the solute molecules, temperature, and the properties of the solvent. The osmotic pressure of a solution can be used to determine the boiling point, vapor pressure, and vapor pressure of a solution. Additionally, it is important for the transport of substances across biological membranes, as well as for the stability of colloidal suspensions.

In summary, the osmotic pressure (in atm) of a solution made by dissolving 7.19 g of glucose in 18.9 ml of solution at 17.4°C can be calculated using the formula: Osmotic Pressure (atm) = Molarity (M) × Gas Constant (R) × Temperature (T), and is equal to 0.983 atm.

To know more about osmotic pressure click on below link :

https://brainly.com/question/15501096#

#SPJ11

The situations is there a point to the left of the particles where an electron will be in equilibrium are when the net force is zero, an electron will be in equilibrium.

The net force is calculated using the force components acting on the electron, which is the sum of all the forces. The sum of the forces is zero when the electron is in equilibrium, and there is no acceleration. The point at which the forces acting on an electron are in equilibrium is a point to the left of the particles.When the electron is static, it will be in equilibrium.

An electron in static equilibrium is stationary, and its acceleration is zero, as it does not move. When the net force acting on the electron is zero, the electron will be in static equilibrium. This results in a point to the left of the particles where the electron is in equilibrium.

Learn more about equilibrium at:

https://brainly.com/question/28514442

#SPJ11

The binding energy of the last neutron in silicon-30 is 2.346 × 10^-12 J.

The binding energy of a nucleus is the energy required to separate all of its constituent nucleons (protons and neutrons) from each other to an infinite distance. The binding energy per nucleon is a measure of the stability of a nucleus, with higher values indicating greater stability.

To calculate the binding energy of the last neutron in silicon-30, we need to use the atomic masses of silicon-30 and silicon-29 to determine the mass defect of silicon-30:

mass defect = (atomic mass of protons and neutrons) - (atomic mass of nucleus)

The atomic mass of silicon-30 is 29.973770 u, and the atomic mass of silicon-29 is 28.976495 u. Therefore, the mass defect of silicon-30 is:

mass defect = (30 protons + 30 neutrons) × 1.008665 u - 29.973770 u

mass defect = 0.259625 u

This means that the total binding energy of the silicon-30 nucleus is:

binding energy = mass defect × c^2

where c is the speed of light in a vacuum, which is approximately 2.998 × 10^8 m/s.

binding energy = 0.259625 u × (1.66054 × 10^-27 kg/u) × (2.998 × 10^8 m/s)^2

binding energy = 2.335 × 10^-11 J

Since we are interested in the binding energy of the last neutron in silicon-30, we need to subtract the binding energy of the silicon-29 nucleus (which has 29 neutrons) from the binding energy of the silicon-30 nucleus:

binding energy of last neutron = binding energy of silicon-30 nucleus - binding energy of silicon-29 nucleus

binding energy of last neutron = (30 nucleons × 2.335 × 10^-11 J) - (29 nucleons × 2.308 × 10^-11 J)

binding energy of last neutron = 2.346 × 10^-12 J.

Learn more about   binding energy

https://brainly.com/question/30073915

#SPJ4

The best description of a star is: "a celestial body that emits light due to nuclear reactions and is composed of gases."

Stars are massive, luminous spheres of plasma held together by their own gravity. They are not composed of rock and metal with a high density, nor are they too big to be an asteroid but too small to be a planet. Stars do rotate on an axis and revolve around a central point, but their defining characteristic is their ability to emit light and heat through the process of nuclear fusion.

What is celestial body?

A celestial body is any object that exists in space, such as a planet, moon, asteroid, comet, star, or galaxy. Celestial bodies are natural objects that are not made by humans, and they are typically studied by astronomers and other scientists who are interested in learning more about the structure, composition, and behavior of the universe. Celestial bodies can be located within our solar system or in distant regions of space, and they can range in size from tiny rocks to massive stars and superclusters of galaxies.

To know more about celestial body, visit:

https://brainly.com/question/28876984

#SPJ1

Complete question is: The best description of a star is: "a celestial body that emits light due to nuclear reactions and is composed of gases."

The concentration required for the same osmotic pressure is 0.019 molL⁻¹.

The osmotic pressure of an aqueous solution is determined by the concentration of the solute particles present in the solution. To create an aqueous solution of Ca(NO₃)₂ with the same osmotic pressure as 3.08m KCl (1.36 atm), we must first determine the molarity of the solution.

The osmotic pressure can be calculated using the Van 't Hoff equation:

Osmotic Pressure (Π) = iMRT

where i is the Van 't Hoff factor (3 for Ca(NO₃)₂, as it dissociates into 3 ions), M is the molarity of the solution, R is the ideal gas constant (0.0821 L•atm•mol-1•K-1), and T is the absolute temperature (in Kelvin).

Thus, we can rearrange the equation to solve for M:

M = Π/(iRT).

Plugging in the values for Π (1.36 atm), i (3), R (0.0821 L•atm•mol⁻¹•K⁻¹), and T (298K), we get:

M = 1.36/(3*0.0821*298)

M = 0.019 molL⁻¹.

Thus, 0.019 molL⁻¹ is the molarity of the Ca(NO₃)₂ solution that would be necessary to create an aqueous solution with the same osmotic pressure of 1.36 atm as the 3.08m KCl solution.

To know more about osmotic pressure, refer here:

https://brainly.com/question/29823250#

#SPJ11

The amount of N2 (Nitrogen) produced will be limited by the amount of NH3 (Ammonia) present. Thus, the maximum amount of N2 that can be produced is 1.625 moles (which is half of the 3.25 moles calculated above). Therefore, the answer is 1.625 moles of N2.

If a sample containing 6.5 moles of NH3 is reacted with excess CuO, 1.625 moles of N2 can be produced. There are two products that can be produced by the reaction of NH3 with excess CuO: N2 and H2O. The balanced equation for this reaction is as follows: 4NH3 + 3CuO → 2N2 + 3H2O + 3CuTo determine how many moles of each product can be made, we need to use the mole ratio between NH3 and the products. From the balanced equation, we can see that for every 4 moles of NH3, 2 moles of N2 can be produced. Therefore, for 6.5 moles of NH3, we can calculate the amount of N2 produced as follows:6.5 moles NH3 × (2 moles N2/4 moles NH3) = 3.25 moles N2However, we have to remember that the reaction is carried out with excess CuO. This means that all of the NH3 will be consumed, and there will be enough CuO (Copper oxide) to react with all of it. Therefore, the amount of N2 produced will be limited by the amount of NH3 present. Thus, the maximum amount of N2 that can be produced is 1.625 moles (which is half of the 3.25 moles calculated above). Therefore, the answer is 1.625 moles of N2.

For more such questions on Moles

https://brainly.com/question/14485544

#SPJ11

Answer:

When anisaldehyde is treated with hydrogen and palladium, the products formed are 1-propanol and 3-methylbutanal.

Explanation:

The reaction converts a carbonyl group into a primary alcohol and is an example of a reduction reaction.

When anisaldehyde (also known as p-methoxybenzaldehyde) is treated with hydrogen gas and a palladium catalyst (H2, Pd), it undergoes a reduction reaction and forms a primary alcohol known as anisyl alcohol (p-methoxybenzyl alcohol).

The chemical equation for the reaction is:

Anisaldehyde + H2 + Pd → Anisyl alcohol

The reaction involves the addition of two hydrogen atoms to the carbonyl group of anisaldehyde, resulting in the formation of an alcohol group. The palladium catalyst serves to facilitate the reaction by providing a surface for the hydrogen gas to adsorb and react with the anisaldehyde.

Learn more about Anisaldehyde:https://brainly.com/question/30452362

#SPJ1

Answer: The l designation of amino acids used in peptide synthesis is based on the absolute configuration of l-glyceraldehyde. The structure of l-glyceraldehyde is achiral, meaning that it does not have a mirror image. Its molecular formula is C₃H₆O₃, and its structure is: l-Glyceraldehyde structure.

What is the meaning of the L-designation of amino acids?

Amino acids are essential components of proteins that play a crucial role in various biological processes. Amino acids have a chiral center and can exist in two enantiomeric forms: L- and D-.

To represent the configuration of amino acids, L- and D-designations are used. L-amino acids have the amino group on the left side of the chiral carbon, while D-amino acids have the amino group on the right side of the chiral carbon.

The L-designation of amino acids used in peptide synthesis is based on the absolute configuration of L-glyceraldehyde. L-glyceraldehyde is a chiral compound with two enantiomers: L-glyceraldehyde and D-glyceraldehyde.

It is an Aldo triose with a molecular formula of C3H6O3. The L-glyceraldehyde has an OH group on the left side of the chiral center, and the D-glyceraldehyde has an OH group on the right side of the chiral center.

The L- and D-designations for amino acids are used to distinguish between different enantiomers of amino acids. The L-amino acids are used in proteins, while D-amino acids are found in bacterial cell walls and other biological processes.

Learn more about amino acids here:

https://brainly.com/question/14583479#

#SPJ11

The volume in ml of a 6 m solution of hcl stock solution required to make 250 ml of 50 mm hcl is: 20.8 ml.

To calculate the volume of a 6 M HCl stock solution required to make 250 ml of 50 mM HCl, use the following equation:

volume of stock solution (ml) = (desired concentration (mM) x volume of desired solution (ml)) / stock solution concentration (M).

Therefore, in this case, volume of stock solution (ml) = (50 mM x 250 ml) / 6 M = 20.8 ml. In other words, 20.8 ml of a 6 M HCl stock solution is required to make 250 ml of 50 mM HCl. This is because the number of moles (the amount of HCl molecules) in the solution must remain constant.

Increasing the volume of the solution by dilution means that the concentration (the amount of HCl molecules per ml of solution) must be decreased, and thus the amount of HCl stock solution must be increased.

To know more about HCl refer here:

https://brainly.com/question/30233723#

#SPJ11

The salts that form a basic aqueous solution at 298 K are NaF, LiOH, and MgS. The pH of a solution can be classified as acidic, basic, or neutral.

In chemistry, the ion Na+ would stand for a solution of table salt, also known as sodium chloride (NaCl), in water (aq). The prefix aqua gives rise to the adjective aqueous, which may be defined as relating to, being like, or being dissolved in water.
In chemistry, water is considered to be a ubiquitous solvent since it is both a good solvent and one that is naturally plentiful.

Acids have a pH of less than 7, bases have a pH greater than 7, and a pH of 7 is considered neutral.

Therefore, aqueous solutions with a pH less than 7 are acidic, while those with a pH greater than 7 are basic.

An acidic aqueous solution has an excess of hydrogen ions (H+), while a basic aqueous solution has an excess of hydroxide ions (OH).

At 298 K, the salts that form a basic aqueous solution are NaF, LiOH, and MgS.

The reaction of NaF is: F(aq) + H2O(l)  HF(aq) + OH(aq). LiOH reacts to produce:

LiOH(s) → Li⁺(aq) + OH⁻(aq)

MgS reacts to produce:

MgS(s) + H₂O(l) → Mg(OH)₂(aq) + H₂S(aq)

Therefore, the correct answer is:NaF, LiOH and MgS

To know more about the aqueous solution https://brainly.com/question/2159485

#SPJ11

If 37.2 kJ of energy is evolved when 100g. So, the molar enthalpy of fermentation is 67 kJ/mol.

The molar enthalpy of fermentation can be calculated as follows:

From the equation, 1 mole of glucose yields 2 moles of ethanol and 2 moles of carbon dioxide. Thus, the balanced equation for this process is:

C₆H₁₂O₆ (aq)  → 2C₂H₅OH(aq) + 2CO₂ (g)

From the given values, the mass of glucose that was fermented is 100 g. The molar mass of glucose is 180.16 g/mol. Thus, the number of moles of glucose can be calculated as follows:

moles of glucose = Mass of glucose / Molar mass of glucose

moles of glucose = 100 g / 180.16 g/mol

moles of glucose = 0.555 moles

The molar enthalpy of fermentation is defined as the amount of energy released per mole of fermented glucose. Thus, the molar enthalpy of fermentation can be calculated as follows:

Molar enthalpy  = Energy released / moles of glucose

Molar enthalpy  = 37.2 kJ / 0.555 mol

Molar enthalpy  = 67 kJ/mol

Therefore, the molar enthalpy of fermentation is 67 kJ/mol.

Complete question:

The equation for the fermentation of glucose to ethanol and carbon dioxide is C6 H12 O6 (aq) 3,2CrN 5 OH(aq)+2CO 2 (g) If 37.2 kJ of energy is evolved when 100. g of glucose is fermented, what the molar enthalpy of fermentation?

Learn more about molar enthalpy at https://brainly.com/question/29295293

#SPJ11

When choosing solvents for recrystallization, the considerations that should be taken into account are: The desired compound should be significantly more soluble in one solvent than the other; the two solvents should have significantly different polarity.

Recrystallization is a method for purifying substances. It is based on the solubility of the material in the solvent. The material is dissolved in a solvent, then the solvent is removed, leaving the purified solid.

The solubility of the material in the solvent is a critical element in recrystallization. Solubility must be high enough to enable the material to dissolve, but low enough to allow the material to crystallize out of solution.

The desired compound should be significantly more soluble in one solvent than the other. If one solvent has high solubility for the compound while the other solvent has low solubility, the compound will dissolve in the high solubility solvent and remain in solution when the mixture is cooled.

The compound will precipitate out of the mixture when it reaches its saturation point, leaving behind impurities in solution.

The two solvents should have significantly different polarity. The compound should have low solubility in the solvent with lower polarity but high solubility in the solvent with higher polarity.

The high polarity solvent is used to dissolve the compound, while the low polarity solvent is used to wash away impurities. The solvent should be less reactive than the compound, non-toxic, and reasonably priced.

To know more about recrystallization, refer here:

https://brainly.com/question/29215760#

#SPJ11

Total mass = number of pennies x mass per penny

Given that you have 125 pennies, and the average penny has a mass of 2.50 g, we can plug in these values to get:

Total mass = 125 x 2.50 g

Total mass = 312.50 g

Therefore, the total mass of the pennies is 312.50 grams.

The most likely range of values for human body density is 0.900 - 1.100 g/cc.(A)

Option (b) 1.09 - 1.105 g/cc is not the most likely range of values for human body density.

Option (c) 0.99 - 1.02 g/cc and option (d) 1.02-1.08 g/cc are also not the most likely range of values for human body density.

Body density is the mass of the human body divided by the volume it occupies. The density of the human body depends on the mass and volume of the body's internal organs, muscle mass, and the amount of adipose tissue present in the body.

The density of the human body typically ranges from 0.900 g/cc to 1.100 g/cc. This range may vary depending on several factors, including age, gender, body composition, and other health factors.

However, the most likely range of values for human body density is 0.900 - 1.100 g/cc.

To know more about adipose tissue click on below link:

https://brainly.com/question/30782617#

#SPJ11

Calculating the volume of HCl that fully reacted with calcium carbonate, the following steps should be followed:

Step 1: Write the balanced chemical equation for the reaction between HCl and calcium carbonate.

CaCO3 + 2HCl → CaCl2 + CO2 + H2O

Step 2: Calculate the molar mass of CaCO3.CaCO3: 1(40.08) + 1(12.01) + 3(16.00) = 100.09 g/mol

Step 3: Calculate the moles of CaCO3 used.

Mass of CaCO3 used = 0.548 g

Moles of CaCO3 used = 0.548 g / 100.09 g/mol = 0.00548 mol

Step 4: Use the balanced chemical equation to determine the moles of HCl required to react completely with the CaCO3. According to the balanced equation, 2 moles of HCl react with 1 mole of CaCO3.

Therefore, the number of moles of HCl required is:

2 mol HCl/mol CaCO3 × 0.00548 mol CaCO3 = 0.01096 mol HCl

Step 5: Calculate the volume of HCl required to provide this number of moles. The molarity (M) of the HCl solution is given as 0.101 M.

Using the formula for molarity (M = moles of solute/liters of solution), we can rearrange the equation to solve for volume.

The volume of HCl = moles of solute / molarity= 0.01096 mol / 0.101 mol/L = 0.1086 L or 108.6 mL

Therefore, the volume of HCl that fully reacted with the calcium carbonate is 108.6 mL.

Note that this is not the total volume of HCl initially added nor is it the amount needed to neutralize the titrant.

to know more about balanced equation refer here:

https://brainly.com/question/7181548#

#SPJ11

Since we are given the reactants and products in a chemical reaction, we can write the balanced chemical equation as:

4 NH3 + 5 O2 → 4 NO + 6 H2O

From the balanced equation, we can see that 4 moles of NH3 react with 5 moles of O2 to form 4 moles of NO and 6 moles of H2O.

To solve the following questions, we can use the stoichiometry of the balanced chemical equation.

How many moles of NH3 are in the sample?

The molar mass of NH3 is 17.03 g/mol, so the number of moles of NH3 in the sample is:

2.00 g / 17.03 g/mol = 0.1173 mol NH3

How many moles of O2 are in excess?

We can first calculate the number of moles of O2 required to react completely with NH3. From the balanced equation, we know that 4 moles of NH3 react with 5 moles of O2, so the number of moles of O2 required is:

0.1173 mol NH3 × (5 mol O2 / 4 mol NH3) = 0.1466 mol O2

The actual amount of O2 used is 4.00 g / 32.00 g/mol = 0.125 mol O2, so the number of moles of O2 in excess is:

0.125 mol O2 - 0.1466 mol O2 = -0.0216 mol O2

Since the value is negative, it means that O2 is the limiting reactant, and NH3 is in excess.

How many moles of H2O are produced?

From the balanced equation, we know that for every 4 moles of NH3 reacted, 6 moles of H2O are produced. Therefore, the number of moles of H2O produced is:

0.1173 mol NH3 × (6 mol H2O / 4 mol NH3) = 0.1760 mol H2O

What is the mass of NO produced?

The molar mass of NO is 30.01 g/mol, so the mass of NO produced is:

0.1173 mol NH3 × (4 mol NO / 4 mol NH3) × 30.01 g/mol = 3.52 g NO

For more questions like reactants visit the link below:

https://brainly.com/question/31263593

#SPJ11

From the given reactions, another quantity that is equal to ΔH degree reaction is 1. enthalpy of combustion, 2. 4x bond energy of carbon-hydrogen bond, 3. enthalpy of formation and 4. -4x bond energy of CH bond.

Hence, the correct option is A.

Enthalpy of a reaction is defined as the total sum of the heat of the system in the reaction and the product of the pressure and volume of the system. In the first reaction, the enthalpy of combustion of methane in the presence of oxygen is calculated, which gives the change in heat during burning.

In the second reaction, bond breaking will give the heat change as 4x bond energy of the carbon and hydrogen bond is endothermic.

In the third reaction, the enthalpy of formation of methane will give the change in the enthalpy.

In the fourth reaction, the difference between the bond energies of the reactants and the products that are -4x bond energy of carbon and hydrogen will result in enthalpy change.

Hence, the bond of combustion and formation can be a component along with enthalpy.

Hence, the correct option is A.

To know more about enthalpy here

https://brainly.com/question/14017717

#SPJ4

To demonstrate the formation of 3-methoxyheptane through an SN2 mechanism, follow these steps:

1. Identify the nucleophile and electrophile: The nucleophile is the methoxide ion (CH3O-) and the electrophile is the alkyl halide, such as 1-chloroheptane (C7H15Cl).

2. Show the electron flow using curved arrows: Draw a curved arrow from the lone pair on the oxygen atom of the methoxide ion to the carbon atom bonded to the chlorine in 1-chloroheptane. This arrow represents the nucleophilic attack.

3. Show the leaving group departure: Draw another curved arrow from the carbon-chlorine bond in 1-chloroheptane to the chlorine atom. This arrow represents the departure of the chloride ion (Cl-) as the leaving group.

4. Draw the final product with the correct stereochemistry: As SN2 reactions lead to inversion of stereochemistry, if the starting 1-chloroheptane had an R configuration, the final product, 3-methoxyheptane, would have an S configuration (and vice versa). So, draw the final product with the methoxy group (OCH3) attached to the third carbon atom of the heptane chain, and the correct stereochemistry based on the starting material.

The resulting structure will be 3-methoxyheptane, with the appropriate stereochemistry.

The complete balanced equation for the neutralization reaction between HCl and NaHCO₃ is:

HCl + NaHCO₃ → NaCl + H₂O + CO₂

The reaction between hydrochloric acid (HCl) and sodium bicarbonate (NaHCO₃) is known as a neutralization reaction. In this reaction, HCl and NaHCO₃ combine to produce NaCl, water, and carbon dioxide.

The reaction can be represented by the following equation: HCl + NaHCO₃ → NaCl + H₂O + CO₂

This reaction already the balanced chemical equation for the reaction since the number of each element in the reactant side is equal to the number of each element in the product side.

Learn more about balanced equation here: https://brainly.com/question/11904811.

#SPJ11

The mass percent concentration of the obtained ammonia solution is approximately 0.00833%.

To determine the mass percent concentration of an ammonia solution, we need to know the mass of ammonia present in the solution and the total mass of the solution.

In this case, we are given that 11.2 dm3 of NH3 gas, as measured in normal conditions (which is equivalent to 0.0112 m3), were dissolved in 100 cm3 of water. To calculate the mass of ammonia present in the solution, we first need to calculate the number of moles of NH3 using the ideal gas law, PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.

Assuming standard temperature and pressure (STP), we can use a pressure of 1 atm and a temperature of 273 K, giving us:

[tex]$n = \frac{PV}{RT}[/tex]

[tex]= \frac{(1 \text{ atm} * 0.0112 \text{ m}^3)}{(0.08206 \text{ L atm/mol K} * 273 \text{ K})} = 0.000489 \text{ mol}$[/tex]

The molar mass of NH3 is 17.03 g/mol, so the mass of NH3 present in the solution is:

mass NH3 = n * molar mass

= 0.000489 mol * 17.03 g/mol

= 0.00833 g

To calculate the mass percent concentration, we divide the mass of NH3 by the total mass of the solution (which is the mass of NH3 plus the mass of water):

mass percent concentration = [tex]\frac{mass,NH_3}{total,mass} \times 100%$[/tex]

The mass of water is equal to its volume times its density, which is approximately 1 g/cm3:

mass water = [tex]100\text{ cm}^3 * 1\text{ g/cm}^3 = 100\text{ g}$[/tex]

Therefore, the total mass of the solution is:

total mass = mass NH3 + mass water = 0.00833 g + 100 g = 100.00833 g

Substituting these values, we get:

mass percent concentration = [tex]\frac{0.00833 \text{ g}}{100.00833 \text{ g}} \times 100%[/tex]

= 0.00833%

To learn more about ammonia solution

https://brainly.com/question/18688514

#SPJ4

When a lab technician adds 0.20 mol of NaF to 1.00 L of 0.35 M cadmium nitrate, Cd(NO3)2, the correct statement is that B) The solubility of cadmium fluoride is increased by the presence of additional fluoride ions.

The solubility of salts is influenced by the presence of anions.

The solubility of salts is increased by the presence of anions in some cases. Anions reduce the solubility of salts in other cases. Cadmium nitrate (Cd(NO3)2) has a Ksp of 6.44 × 10−3, which must be compared to the ion product (IP) for Cd(NO3)2 in solution to decide whether precipitation will occur. Cd(NO3)2 is a soluble salt that ionizes according to the following equation:

Cd(NO3)2 → Cd2+ + 2 NO3−.

According to the solubility product rule, the IP for Cd(NO3)2 is determined as IP = [Cd2+][NO3−]^2. Because cadmium fluoride (CdF2) is less soluble than cadmium nitrate, it must be compared to the IP for CdF2 in solution to decide whether precipitation will occur. The ion product (IP) for CdF2 in solution can be calculated using the stoichiometry of the equilibrium between Cd2+ and F− ions: Cd2+(aq) + 2F−(aq) → CdF2(s).

Thus, IP = [Cd2+][F−]^2. As a result, the addition of fluoride ions to the Cd(NO3)2 solution in the form of NaF increases the solubility of cadmium fluoride because the concentration of F− ions is increased. As a result, option B is correct.

Learn more about solubility at

https://brainly.com/question/28170449

#SPJ11

The volume of hexane that contains 5.33 x 10²² molecules of hexane is approximately 11.68 mL.

To calculate the number of moles of hexane in 5.33 x 10²² molecules, use the formula,

Number of moles = Number of molecules / Avogadro's number

= 5.33 x 10²² / 6.022 x 10²³

= 0.0887 moles

Next, we can use the density and molar mass of hexane to calculate the volume of hexane:

Mass of hexane = Number of moles x Molar mass

= 0.0887 moles x 86.17 g/mol

= 7.655 g

The volume of hexane = Mass of hexane / Density

= 7.655 g / 0.6548 g/mL

= 11.68 mL

Therefore, the volume of hexane that contains 5.33 x 10²² molecules of hexane is approximately 11.68 mL.

Learn more about molar mass here:

https://brainly.com/question/837939

#SPJ11

520.67 liters of HCl gas are required to make concentrated hydrochloric acid (11.6 mol/L) at 25°C and 1 atm pressure. while assuming ideal behavior.

To make concentrated hydrochloric acid (11.6 mol/L) at 25°C and 1 atm pressure, the volume of HCl gas needed is 520.67 L.

Assuming ideal behavior,

Molarity (M) = number of moles of solute/volume of solution in liters (L)

Given:

Molarity (M) = 11.6 mol/L

Volume of solution (V) = ?

Temperature (T) = 25°C

Pressure (P) = 1 atm

We can use the ideal gas law to find the volume of HCl gas required to make 1 L of concentrated HCl. Then, we can use this value to find the volume of HCl gas required to make a certain volume of concentrated HCl. The ideal gas law is given as:

PV = nRT

where: P is pressure, V is volume of the gas, n is the number of moles of gas, R is the gas constant, T is the temperature. We can rearrange the ideal gas law to solve for volume:

V = nRT/PAt

standard temperature and pressure (STP), 1 mole of an ideal gas occupies 22.4 L.

Therefore, the number of moles of HCl gas required to make 1 L of concentrated HCl is given as:

11.6 mol/L × 1 L = 11.6 moles

We can substitute these values into the ideal gas law equation and solve for the volume of HCl gas required to make 1 L of concentrated HCl:

V = nRT/PV = (11.6 mol) × (0.08206 L·atm/K·mol) × (298 K)/(1 atm)V

= 260.51 L

However, we are interested in finding the volume of HCl gas required to make a certain volume of concentrated HCl. We can use the following conversion factor to find the volume of HCl gas required:

1 L concentrated HCl = 260.51 L HCl gas

We can use dimensional analysis to solve for the volume of HCl gas required to make 1 L of concentrated HCl:

11.6 mol/L × 1 L concentrated HCl × (260.51 L HCl gas/1 L concentrated HCl) = 3020.37 L HCl gas

However, this calculation gives the volume of HCl gas required to make 1 L of concentrated HCl.

We are interested in finding the volume of HCl gas required to make a certain amount of concentrated HCl.

We can use the following formula to solve for the volume of HCl gas required to make a certain amount of concentrated HCl:

V2 = V1 × (M1/M2)

where:V1 is the volume of concentrated HCl needed

M1 is the molarity of concentrated HCl

M2 is the molarity of the HCl gas

V2 is the volume of HCl gas needed

We can substitute the given values into the formula and solve for

V2:V2 = (1 L) × (11.6 mol/L)/(0.08206 L·atm/K·mol × 298 K)V2

= 520.67 L

Therefore, 520.67 liters of HCl gas are required to make concentrated hydrochloric acid (11.6 mol/L) at 25°C and 1 atm pressure.

For more such questions on ideal behavior , Visit:

https://brainly.com/question/28302575

#SPJ11

There is 73 3/4 liters of milk left in the vessel.

John drank 14 1/4 liters of milk and Joe drank 12 1/2 liters of milk. This means that a total of 26 3/4 liters of milk was consumed from the vessel. 112 1/2 liters of milk was the total amount of milk in the vessel, so if we subtract the 26 3/4 liters that was consumed from the vessel, we can calculate the remaining amount of milk left in the vessel.

Calculate the total amount of milk that was consumed.

John drank 14 1/4 liters of milk and Joe drank 12 1/2 liters of milk. This means that a total of 26 3/4 liters of milk was consumed from the vessel.

Calculate the amount of milk left in the vessel.

The total amount of milk in the vessel was 112 1/2 liters. If we subtract the 26 3/4 liters that was consumed from the vessel, we can calculate the remaining amount of milk left in the vessel: 112 1/2 liters - 26 3/4 liters = 73 3/4 liters.

In this problem, we needed to calculate the amount of milk left in the vessel after two people drank from it. We did this by first calculating the total amount of milk that was consumed (John drank 14 1/4 liters of milk and Joe drank 12 1/2 liters of milk). Then, we calculated the remaining amount of milk left in the vessel by subtracting the amount of milk consumed from the total amount of milk in the vessel (112 1/2 liters - 26 3/4 liters = 73 3/4 liters).

To know more about diluted milk  click on below link :

https://brainly.com/question/30203634#

#SPJ11

The process of sequential migration of electrons from one atom to the next is called electron hopping, while the migration of electrons across a pn semiconductor junction is called diffusion.

The process of sequential migration of electrons from one atom to the next is called electronic conduction, while the migration of electrons across a pn semiconductor junction is called diffusion. Electronic conduction is the movement of charged particles in a medium, typically electrons or holes. The term is commonly used to describe the behavior of electrons in a conductor, which allows them to move freely through the material in response to an electric field. This movement of electrons is what produces the flow of electricity, which is an essential part of our daily lives.

In materials science, diffusion refers to the movement of atoms or molecules from a region of high concentration to a region of low concentration. This process is driven by the random motion of particles, which results in a net flow from areas of high to low concentration. In semiconductors, diffusion is a significant factor in the operation of devices such as diodes and transistors. When a p-type and n-type semiconductor are joined together, there is a gradient in the concentration of electrons between the two regions. This gradient causes electrons to move across the junction by diffusion, which creates a flow of current.

For more such questions on diffusion , Visit:

https://brainly.com/question/14852229

#SPJ11

Answer: Benzene has a boiling point of 80oC, toluene has a boiling point of 110 oC, and xylene has a boiling point of 130 oC. The GC of a mixture of these three compounds should show retention times as benzene, toluene, xylene.

The GC of a mixture of these three compounds should show retention times as. The correct answer is Option C; benzene, toluene, xylene. The boiling points of the components indicate that they have different volatility.

Therefore, the order of volatility follows the order in which they have been mentioned in the question;

benzene < toluene < xylene

This means that as the boiling point increases, the retention time of each compound in the column also increases. Since the order of volatility is benzene < toluene < xylene, the retention times of the compounds will be as follows; benzene will have the least retention time, followed by toluene and then xylene, with the largest retention time.

Therefore, the GC of a mixture of these three compounds should show retention times as benzene, toluene, and xylene.

Learn more about retention here:

https://brainly.com/question/29709076#



#SPJ11

The pH of a 0.2 M solution of formic acid (Ka = 1.8x10-4) can be calculated using the Henderson-Hasselbalch equation: pH = pKa + log([A-]/[HA]). Plugging in the values gives us pH = 3.66.

The Henderson-Hasselbalch equation is used to calculate the pH of a weak acid solution. The equation states that pH = pKa + log([A-]/[HA]). Here, [A-] is the concentration of the conjugate base, and [HA] is the concentration of the weak acid. pKa is the acid dissociation constant of the weak acid. In this case, Ka = 1.8x10-4.

We can solve for pH by plugging in the values: pH = 1.8x10-4 + log([0.2]/[0.2]). This simplifies to pH = 3.66.

To know more about Handerson - Hasselbalch click on below link :

https://brainly.com/question/14839725#

#SPJ11