how many millilters each of a 2% w/v solution of tetracaine hydrochloride and a 1:1000 w/v solution of epinephrine hydrochloride should be used in preparing the prescription?

Answer:

To calculate the volume of 0.550 M HCl that can be prepared from 35.0 mL of 11.7 M HCl, we can use the following formula: M1V1 = M2V2 where M1 is the initial concentration of HCl (11.7 M), V1 is the initial volume of HCl (35.0 mL), M2 is the final concentration of HCl (0.550 M), and V2 is the final volume of HCl that we need to calculate. Rearranging the formula to solve for V2, we get: V2 = (M1V1) / M2 Substituting the given values, we get: V2 = (11.7 M)(35.0 mL) / 0.550 M V2 = 747.27 mL Therefore,

Answer:

Yes. ΔrG° and ΔfG° represent the same thing, namely the standard free Gibbs energy. In the context of thermodynamics, this energy refers to the energy associated with a reaction that is taking place at a given temperature, pressure and concentration of reactants. This energy is dependent on the thermodynamic properties of the substances that are undergoing the reaction, and can be calculated from the reaction enthalpy, entropy and the standard state properties of the participating chemicals.

To further clarify the concept, let's take a look at a simple reaction:

A + B → C + D.

The standard free Gibbs energy for this reaction can be calculated using the following equation:

ΔrG° = ΔH° - TΔS°

Where ΔH° is the standard enthalpy change for the reaction, T is the temperature in Kelvin, and ΔS° is the standard entropy change for the reaction. It is important to note that both ΔH° and ΔS° are given in units of kJ/mol. The resulting ΔrG° can also be expressed in terms of the standard state properties of each participating reactant, resulting in the equation:

ΔrG° = Σi (ni·G°i) = Σi (ni·(H°i - T·S°i))

Where ni is the stoichiometric coefficient of the reactant,

In the redox reaction, Nitrogen element is oxidized and sulfur element is reduced.  act as reducing agent and  act as an oxidizing agent.

Redox reaction, also known as an oxidation-reduction reaction, is the reaction in which both oxidation and reduction occur at the same time. The definition of an oxidation reaction is the process by which a substance loses its electrons. In this, an element's oxidation condition progresses. Or we could state that electrons are lost during decomposition.

A substance gains electrons during a reduction reaction, which is defined as such. In this, an element's oxidation state is reduced. Or we can say that in reduction, the gain of electrons takes place. Reducing agent : It is defined as the agent which helps the other substance to reduce and itself gets oxidized. Thus, it will undergo oxidation reaction.

Oxidizing agent : It is defined as the agent which helps the other substance to oxidize and itself gets reduced. Thus, it will undergo reduction reaction.

Learn more about redox reaction,

https://brainly.com/question/13293425

#SPJ1

Only Ag2CO3 will precipitate from the solution.

When Na2CO3 is added to the solution, it will react with the Ag^+ and Pb^2+ ions to form precipitates of Ag2CO3 and PbCO3. The Mn^2+ ion concentration is not high enough to form a precipitate with Na2CO3.

First, let's calculate the initial concentration of Ag^+ and Pb^2+ ions in the solution:

Ag^+: 0.00050 M

Pb^2+: 0.00050 M

Next, we need to calculate the concentration of Na2CO3 after it is added to the solution. Since we added 10.00 ml of 1.0*10^-6 M Na2CO3 to a total volume of 500 ml, the final concentration of Na2CO3 is:

[Na2CO3] = (10.00 ml / 500 ml) * 1.010^-6 M

[Na2CO3] = 2.010^-8 M

Now we can use the Ksp values to determine which precipitates will form.

For Ag2CO3:

Ksp = [Ag^+]^2[CO3^2-]

8.110^-12 = (2x)^2 (2x)

8.110^-12 = 4x^3

x = 2.0*10^-4 M

Since the concentration of CO3^2- is higher than the solubility product, Ag2CO3 will precipitate.

For PbCO3:

Ksp = [Pb^2+][CO3^2-]

7.410^-14 = (0.00050 M)(2x)

x = 9.210^-11 M

Since the concentration of CO3^2- is lower than the solubility product, PbCO3 will not precipitate.

Therefore, the only precipitate that will form is Ag2CO3.

More on precipitation reactions can be found here: https://brainly.com/question/24158764

#SPJ1

Now, we can calculate the percent yield of carbon dioxide using the following equation Percent yield of CO2 = 61.5% .

What is carbon dioxide?

Carbon dioxide (CO2) is a colorless, odorless gas composed of one carbon atom and two oxygen atoms. It exists in the Earth's atmosphere as a trace gas, making up approximately 0.04% of the atmosphere by volume. In nature, it is produced by the respiration of living organisms and through the decay of organic matter.

It is also a byproduct of many human activities such as burning fossil fuels, producing cement, and manufacturing plastic. Carbon dioxide is an important greenhouse gas, which means it absorbs and traps heat in the atmosphere, resulting in global warming.

The given reaction is:

CH3CH2CH3 + O2 → CO2 + H2O

m(octane) = 20.6 g

m(O2) = 98.6 g

m(CO2) = 29.2 g

Using the given information and the balanced equation, we can determine the theoretical yield of carbon dioxide by using the following equation:

m(CO2) (theoretical) = (m(octane) × molar mass of octane) / molar mass of CO2

m(CO2) (theoretical) = (20.6 g × 72 g/mol) / 44 g/mol

m(CO2) (theoretical) = 47.45 g

To learn more about carbon dioxide

brainly.com/question/30192582

#SPJ1

Full Question ;

Liquid octane CH3CH26CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2 and gaseous water H2O. If 29.2g of carbon dioxide is produced from the reaction of 20.6g of octane and 98.6g of oxygen gas, calculate the percent yield of carbon dioxide. Round your answer to 3 significant figures.

1) Double arrow

2) Double arrow

3) Single arrow

4) Single arrow

5) Double arrow

6)  Double arrow

In chemistry, there are several types of arrows used in chemical reactions to represent the movement of electrons or the direction of the reaction.

The  double arrow  arrow is used to indicate that the reaction is in equilibrium. It is often represented by two half-arrows facing opposite directions. It is common in the kinds of reactions that can go both ways.

Learn more about chemical reaction:https://brainly.com/question/29039149

#SPJ1

The right response is C. Less pressure is applied to the liquid, which makes it simpler for gas to escape.

Less pressure allows the water molecules to flow more freely, gaining kinetic energy in the process. As a result, less heat energy is needed to break the intermolecular interactions. (the boiling point decreases). Water boils and transforms into water vapour after the boiling point is reduced to room temperature.

When air pressure is lower, it requires less energy to get water to the boiling point. Water will boil at a lower temperature at higher altitudes because there is less energy and hence less heat there.

To know more about Less pressure visit:-

https://brainly.com/question/24613205

#SPJ1

The balanced reaction equation is;

C2H5OH + 3O2 → 2CO2 + 3H2O

Balancing a chemical equation by atom count involves adjusting the coefficients (the numbers in front of each chemical formula) so that the number of atoms of each element is equal on both sides of the equation. Here are the steps to follow:

Write the unbalanced chemical equation, including the correct chemical formulas for each reactant and product.

Count the number of atoms of each element on both sides of the equation.

Determine which elements are not balanced by comparing the number of atoms on each side.

Choose one element that is not balanced, and start by balancing it on one side of the equation.

Add coefficients to the other reactants and products in the equation until the number of atoms of that element is balanced on both sides.

Repeat this process for each element that is not balanced until the equation is balanced.

Learn more about atom count:https://brainly.com/question/30675351

#SPJ1

Answer:

1.36 x 10^24 molecules

Explanation:

1 mole of CO2 has 6.022 x 10^23 moles

=> 2.25 x 6.022 x 10^23 = 1.35495 x 10^24 or 1.36 x 10^24

Using the Henderson-Hasselbalch equation, the pH value when no titrant is added is 4.44.

To solve this problem, we need to use the Henderson-Hasselbalch equation:

where;

We can use this equation to calculate the pH values at different points during the titration.

When no titrant is added:

At this point, we have only the adipic acid in the solution, so we can use the equation:

pH = pKa + log([A-]/[HA])

pH = pKa + log(0/0.1)

pH = pKa = 4.44

pH = 4.44

The other pH values are obtained similarly using the Henderson-Hasselbalch equation.

Learn more about pH and Henderson-Hasselbalch equation at: https://brainly.com/question/13423434

#SPJ1

Answer:

Cu^2+(aq) + CO3^2-(aq) ⟶ CuCO3(s)

Explanation:

The balanced chemical equation for the given reaction is:

Cu(ClO4)2(aq) + Na2CO3(aq) ⟶ CuCO3(s) + 2NaClO4(aq)

We first need to identify the spectator ions to write the net ionic equation. These are ions that appear on both sides of the equation and do not participate in the reaction. In this case, the spectator ions are Cu^2+ and ClO4^-, as they appear unchanged on both sides.

The net ionic equation is obtained by removing the spectator ions from the balanced equation. Therefore, the net ionic equation for this reaction is:

Cu^2+(aq) + CO3^2-(aq) ⟶ CuCO3(s)

Note that Na+ and ClO4^- are not included in the net ionic equation because they do not participate in the formation of the solid product (CuCO3).

Answer:Srasao4(a)

Explanation:

Calculating relative atomic mass of an element is ordered sequentially as followed:

Part 2:

1. Relative atomic mass of Magnesium =

((23.99 x 0.787) + (24.99 x 0.1013) + (25.98 x 0.1117)) / 100 = 24.31 amu

a) Percentage abundance of silver-109 =

100% - 51.86% = 48.14%

b) Average atomic mass of silver = (106.90509 x 0.5186) + (108.90470 x 0.4814) = 107.8682 amu.

Learn more on relative atomic mass here: https://brainly.com/question/28882057

#SPJ1

The lattice energy of the ceasium chloride is -1233 kJ/mol. This is the energy that is released when the salt is formed.

The question is incomplete but I believe that you want to know how to obtain the lattice energy by the Haber cycle and I will throw some light on that.

Lattice energy is the amount of energy released when gaseous ions combine to form a solid ionic compound. It is a measure of the strength of the electrostatic attraction between the ions in the crystal lattice of the compound.

The lattice energy can be calculated using the Born-Haber cycle, which is a series of thermochemical equations that relate the lattice energy to other thermodynamic properties of the compound.

Hence;

-885 - (77 + 243 + 376 (-348))

= -1233 kJ/mol

Learn more about lattice energy:https://brainly.com/question/18222315

#SPJ1

Theoretical yield of CO2 is 25.07 moles.  The percent yield of a reaction is the ratio of the actual yield to the theoretical yield, expressed as a percentage, and is a measure of the efficiency of the reaction.

What is Theoretical Yield?

Theoretical yield is the maximum amount of product that can be obtained from a given amount of reactants, assuming complete conversion of the reactants and 100% efficiency of the reaction. In other words, it is the amount of product that would be obtained if the reaction proceeded to completion without any side reactions or losses of product.

The balanced chemical equation for the combustion of C2H6O (ethanol) is:

C2H6O + 3O2 → 2CO2 + 3H2O

The stoichiometry of the equation shows that 1 mole of C2H6O reacts with 3 moles of O2 to produce 2 moles of CO2. Therefore, the theoretical yield of CO2 can be calculated based on the amount of C2H6O used in the reaction.

Assuming that the percent yield of CO2 is 89%, we can calculate the actual yield of CO2 as follows:

Actual yield of CO2 = 89% x theoretical yield of CO2

If the actual yield of CO2 is 22.32 moles at STP, we can calculate the theoretical yield of CO2 as follows:

Theoretical yield of CO2 = Actual yield of CO2 / (89%/100%)

Theoretical yield of CO2 = 22.32 moles / 0.89 = 25.07 moles

Therefore, the theoretical yield of CO2 is 25.07 moles.

Learn more about Theoretical Yield from given link

https://brainly.com/question/25996347

#SPJ1

Answer: 49.67 Liters

Explanation: To solve this problem, we only have to use 1 equation: P1V1/T1=P2V2/T2. P, T, and V represent pressure, temperature, and volume respectively. This equation can be used when dealing with gas problems. Usually, there is some change in pressure, temperature, or volume, that will alter pressure or volume. Temperature does not change with pressure or volume.

We are given the balloon starting at 29.8 L(V1), a pressure of 734 mmHg(P1), and a temperature of 27.9 C(T1). The ballon rises and encounters a new set of conditions: 375 mmHg(P2) and -16.8 C(T2). The only variable we are missing is V2 which we will solve for. But before we plug in, we have to do some unit conversions. When using any ideal gas equation, the temperature has to be in Kelvin, the volume in Liters, and the pressure in atm. To convert from mmHg to atm, we simply divide by 760. To convert from Celcius to Kelvin we add 273. Now we can plug into the equation.

((.9657 atm)(29.8 L))/300.8 K=((.4934 atm)(V2))/256.2 K

((.9657 atm)(29.8 L)(256.2 K))/((300.8 K)(.4934 atm))=V2

V2= 49.67 Liters

Hope this Helps!

The impact that is NOT associated with using gasoline mixed with ethanol instead of pure petroleum-based gasoline is D) decreases acid rain.

Explain about gasoline ?

Gasoline is a flammable liquid fuel that is widely used to power internal combustion engines in automobiles, boats, small engines, and other machinery. It is a complex mixture of hydrocarbons, which are molecules composed of carbon and hydrogen atoms.

Gasoline is derived from crude oil through a refining process that separates it from other petroleum products. The refining process can also vary the composition of gasoline, creating different grades and blends that are suited to different purposes.

Gasoline is highly combustible and must be handled with care.

The impact that is NOT associated with using gasoline mixed with ethanol instead of pure petroleum-based gasoline is D) decreases acid rain.

To learn more about petroleum follow the given link:  https://brainly.com/question/28285215

#SPJ1

a. The estimated gas-phase enthalpy change for the reaction, ΔH is 493 kJ/mol.

b. The reaction is endothermic

c. The spontaneity of the reaction cannot be determined from the given data.

To estimate the gas phase enthalpy change using bond dissociation enthalpies, we need to calculate the sum of the bond dissociation energies of the bonds broken minus the sum of the bond dissociation energies of the bonds formed.

Using the OWL Table Reference, we can obtain the following bond diwsociation energies:

C-H bond dissociation energy: 413 kJ/mol

S-H bond dissociation energy: 339 kJ/mol

C-S bond dissociation energy: 259 kJ/mol

Breaking the bonds in the reactants requires:

1 C-H bond energy: 413 kJ/mol

1 S-H bond energy: 339 kJ/mol

Forming the bonds in the products releases:

1 C-S bond energy: 259 kJ/mol

Therefore, the estimated gas-phase enthalpy change for the reaction is:

ΔH = (bond energies of reactants broken) - (bond energies of products formed)

ΔH = (413 kJ/mol + 339 kJ/mol) - 259 kJ/mol

ΔH = 493 kJ/mol

b. The estimated gas-phase enthalpy change is positive, hence the reaction requires energy to proceed and is endothermic.

c. To determine whether the reaction is likely to proceed spontaneously in the direction written, we need to consider the Gibbs free energy change (ΔG) of the reaction. The Gibbs free energy change is related to the enthalpy change (ΔH) and the entropy change (ΔS) by the equation:

ΔG = ΔH - TΔS

where T is the temperature in Kelvin.

If the Gibbs free energy change is negative (ΔG < 0), the reaction is spontaneous in the forward direction. If the Gibbs free energy change is positive (ΔG > 0), the reaction is non-spontaneous in the forward direction and spontaneous in the reverse direction. If the Gibbs free energy change is zero (ΔG = 0), the reaction is at equilibrium.

Learn more about exothermic and endothermic reactions at: https://brainly.com/question/14711757

#SPJ1

Answer:

Kk I got it now but I think it to be great

A. It evaporates rapidly at a low temperature,liquid have if it's considered volatile.

Volatility refers to the ability of a liquid to evaporate quickly at a low temperature. Liquids that evaporate quickly are considered volatile. This is due to the fact that the vapor pressure of the liquid is higher than the atmospheric pressure, allowing the molecules of the liquid to escape more easily into the air.Volatility  is a measure of how easily a material vaporizes or evaporates. It is a measure of the tendency of a material to escape from the liquid or solid state and enter into the gaseous state. Volatility is usually measured by the rate of evaporation or vaporization of a material.

learn more about tendency Refer:brainly.com/question/3302563

#SPJ1

The helium sample will occupy a volume of 11.12 L if the pressure is reduced to 5.15 atm while maintaining the temperature at 20 °C.

The ability of monoprotic acids to donate one hydrogen atom or proton to their aqueous solution as opposed to diprotic acids to provide two hydrogen atoms or protons is the primary distinction between the two types of acids.

The pressure and volume of a gas are related by the following equation, known as Boyle's law:

P1V1 = P2V2

where P1 and V1 are the initial pressure and volume, and P2 and V2 are the final pressure and volume, respectively.

Using this equation, we can solve for V2:

P1V1 = P2V2

V2 = (P1V1) / P2

Plugging in the values given in the problem, we get:

V2 = (5.79 atm x 9.89 L) / 5.15 atm

V2 = 11.12 L

To know more about helium visit:-

brainly.com/question/1780577

#SPJ1

Answer:

Traits are the characteristics that are passed from a parent to their offspring. These traits are inherited through the genetic material that is passed down from the parent to the offspring during reproduction. The genetic material contains the instructions for building and maintaining an organism, and these instructions are passed down from generation to generation. Traits can be physical, such as eye color or hair texture, or they can be behavioral, such as the ability to learn or communicate. The study of inheritance and traits is known as genetics.

Explanation:

Answer:

0.635 grams

Explanation:

Given balanced chemical equation:

[tex]\large\boxed{\rm Cu+2AgNO_3 \rightarrow 2Ag+Cu(NO_3)_2}[/tex]

Therefore, the molar mass of Silver Nitrate (AgNO₃) is:

[tex]\rm AgNO_3=107.868+14.007+(3 \cdot 15.999)=169.872\;g/mol[/tex]

Calculate the moles of each reactant by dividing the given mass by the molar mass:

[tex]\rm Moles\;of\;Cu=\dfrac{5.00\;g}{63.55\;g/mol}\approx 0.0787\;mol\;(3\;s.f.)[/tex]

[tex]\rm Moles\;of\;AgNO_3=\dfrac{1.00\;g}{169.872 \;g/mol}\approx 0.00589\;mol\;(3\;s.f.)[/tex]

Silver nitrate (AgNO₃) is the limiting reactant since we have fewer moles of it.

From the balanced equation, 2 moles of AgNO₃ produces 2 moles of Ag. Therefore, the number of moles of Ag produced is:

[tex]\rm 0.00589 \;mol\;AgNO_3 \times \dfrac{2 \;mol\; Ag}{2 \;mol \;AgNO_3} =0.00589 \;mol\;Ag[/tex]

Calculate the mass of Ag by multiplying the number of moles by the molar mass of Ag:

[tex]\begin{aligned} \rm Mass\;of\;Ag&=\rm 0.00589\; mol \times 107.868\; g/mol\\&=\rm 0.635\; g\;(3\;s.f.)\end{aligned}[/tex]

Therefore, 0.635 grams of Ag will be produced from 5.00 g of Cu and 1.00 g of AgNO₃.

Answer:

12.93 atm

Explanation:

c xc xc xc

The new water level in the graduated cylinder will be 17.79 mL. When an object is submerged in a liquid, it expels a volume-equivalent amount of liquid.

With your eyes level with the liquid and the graduated cylinder placed on a flat surface, measure the liquid's height. The liquid will slant downward naturally. The meniscus is the name of this curvature. Always read the measurement on the meniscus's bottom.

Density = mass / volume

With the above formula, we can obtain the volume of the copper. This can be obtained as follow:

Mass of copper = mass/volume

Density of copper = 8.96 g/mL

Volume of copper = Mass of copper / Density of copper

Volume of copper = 20.50 g / 8.96 g/mL

Volume of copper = 2.29 mL

we shall determine the new height of the water. This can be obtained as follow:

Initial height of water = 15.5 mL

Volume of copper = 2.2 mL

New water level = Initial water level + Volume of copper

New water level = 15.5 mL + 2.29 mL

New water level = 17.79 mL

To know more about the water level visit;

https://brainly.com/question/24679715

#SPJ1

C would be the best answer to include in Collin's study about chimpanzee communication methods.

The female chimpanzee walking away when the male chimpanzee approaches can provide information about social behavior and interactions between chimpanzees, which is relevant to the study of their communication methods. The other options are not directly related to communication methods.

Learn more about Collin's study here:

https://brainly.com/question/30066283

#SPJ1

Answer: 51.3 mL.

Explanation:

To calculate the minimum volume of a 2.34 M NaOH solution needed to make 150.0 mL of a 0.800 M NaOH solution, we can use the formula:

M1V1 = M2V2

Where M1 is the initial molarity, V1 is the initial volume, M2 is the final molarity, and V2 is the final volume.

We want to find the initial volume, so we can rearrange the formula to solve for V1:

V1 = (M2V2) / M1

Substituting the given values, we get:

V1 = (0.800 mol/L x 0.150 L) / 2.34 mol/L

V1 = 0.0513 L or 51.3 mL (rounded to 3 significant figures)

Therefore, the minimum volume of a 2.34 M NaOH solution needed to make 150.0 mL of a 0.800 M NaOH solution is 51.3 mL. Answer: 51.3 mL.