an aqueous solution is 28.0% by mass silver nitrate, agno3, and has a density of 1.29 g/ml. the molarity of silver nitrate in the solution is

Answers

Answer 1

The molarity of silver nitrate (AgNo₃) in the solution is 0.127 M.

To calculate the molarity of silver nitrate (AgNO₃) in the solution, we first need to determine the number of moles of silver nitrate present. We can do this by using the mass percentage of silver nitrate, which tells us that 28.0% of silver nitrate is present in every 100 g of solution is:

(28.0/100)×100g = 28 grams

Next, we need to determine the number of moles of silver nitrate present by using the molar mass of AgNO₃, which is 169.87 g/mol:

28g / 169.87g/mol = 0.164 moles

Next, we use the density of the solution to determine the volume:

1.29g/ml = 1.29g/1ml = 1.29ml

We can then use the formula molarity = moles of solute / liters of solution to calculate the molarity of the silver nitrate in the solution:

molarity = moles of solute / liters of solution

molarity = 0.164 moles / 1.29ml

molarity = 0.127 M

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Related Questions

liverworts are non vascular plants in what type of place do they grow?

Answers

Answer:

Worldwide in damp places

Explanation:

Liverworts, like mosses and ferns, usually occur in moist or wet, cool, shady places such as along stream banks, on the terraces above streams, cool valleys

percent yield is a measure of how efficient a reaction process is in experimentation compared to theoretical calculations. percent yield is calculated by dividing the actual yield by the theoretical yield, then multiplying by 100. if the percent yield of a particular reaction is 30.9 %, what is the actual yield, in grams, if the theoretical yield is calculated to be 4.39 g?

Answers

Percent yield is the percent ratio of actual yield to the theoretical yield. It is calculated to be the experimental yield divided by theoretical yield multiplied by 100%

what is theoretical yield?

Multiply the ratio by the amount of the limiting reactant in moles. The theoretical yield of the desired product in moles is the answer.

This is called the theoretical yield, the maximum amount of product that could be formed from the given amounts of reactants. The actual yield is the amount of product that is actually formed when the reaction is carried out in the laboratory.

It is the amount of product resulting from a perfect (theoretical) chemical reaction, and thus not the same as the amount you'll actually get from a reaction in the lab. Theoretical yield is commonly expressed in terms of grams or moles.

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When a small lump of calcium metal,
Ca, is added to water, it reacts giving
off hydrogen gas. A solutic of
calcium hydroxide, Ca(OH)₂, is also
formed in the reaction.
Write a balanced symbol equation,
including state symbols, for the
reaction.

Answers

Answer:

The reaction of calcium metal with water to form calcium hydroxide and hydrogen gas can be represented by the following balanced equation:

Ca(s) + 2H2O(l) → Ca(OH)2(aq) + H2(g)

In this equation, "Ca" represents calcium metal, "H2O" represents water, "Ca(OH)2" represents calcium hydroxide, and "H2" represents hydrogen gas. The state symbols (s) , (l) and (aq) represent solid, liquid and aqueous state respectively.

This equation represents the transfer of electrons from the calcium metal to the water molecules, resulting in the formation of calcium hydroxide (a base) and hydrogen gas. The equation is balanced, with one calcium atom on the reactant side and one on the product side, and two water molecules on the reactant side and one calcium hydroxide molecule and two hydrogen atoms on the product side.

carbon-14 has a half-life of 5,730 years. the sample weighs 120 grams. a. how many years would it take for three-quarters of the original amount of carbon-14 in the sample to become stable?

Answers

Carbon-14 has a half-life of 5,730 years, So:

2 x 5,730 years = 11,460 years.

So it would take 11,460 years for three-quarters of the original amount of carbon-14 in the sample to become stable.

What do you mean by half-life?

The half-life of a radioactive isotope is the time it takes for half of the original amount of the isotope to become stable. Therefore, the time it takes for three-quarters of the original amount of the isotope to become stable is twice the half-life, since half-life is the time for half to decay.

What are two main properties of carbon?

Catenation which means self linking of carbon atoms to form long chains and Tetravalency are the two properties of carbon. This might lead to the formation of a large number of carbon compounds.

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Copy and complete this concept map

Answers

An effective technique to show the connections between various concepts, ideas, and pieces of knowledge is through the use of concept maps.

Concept maps – what are they?Visual displays of information are called concept maps. They can be shown as graphs, tables, timelines, Venn Diagrams, flowcharts, or T-charts. Any type of learner can benefit from concept maps, but those who learn best visually will find them to be especially helpful.An effective technique to show the connections between various concepts, ideas, and pieces of knowledge is through the use of concept maps. One major idea or focus question is presented in a hierarchy along with multiple related ideas, important concepts, and subtopics in concept maps. Concept maps and mind maps are not the same, despite the fact that they resemble one another.          

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what are some posible benefits of creating synthetic materials from natural resources ? what might be some drawbacks?

Answers

The benefits of synthetics are numerous; they have properties not found in nature, allowing us to make things stronger, lighter, more fuel-efficient, shiner, and longer lasting. At the same time, we contribute to global pollution, have an impact on animal and human health, and require energy to produce.

What are the advantages and disadvantages of synthetic materials?

The majority of synthetic fibers are pliable. Most synthetic fiber fabrics do not wrinkle easily.

Fabrics made of synthetic fibers are typically more durable, less expensive, and more widely available than natural fiber fabrics. The majority of synthetic fibers can withstand heavy loads without breaking.

Thus, The benefits of synthetics are numerous; they have properties not found in nature, allowing us to make things stronger, lighter, more fuel-efficient, shiner, and longer lasting.

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5 students are working together to build 5 models. All models will represent the molecular structure of sodium bicarbonate, NaHCO3, commonly known as baking soda. The students are using toothpicks to represent bonds and jelly beans to represent atoms.


Red jelly beans represent sodium atoms (Na) White jelly beans represent hydrogen atoms (H) Black jelly beans represent carbon atoms (C) Blue jelly beans represent oxygen atoms (O)


Directions: Identify the number of each color of jelly bean needed to make All five models of NaHCO3. For your answer: Please write down the color of the jelly bean, the element symbol and the number of jelly beans. ex. Y (He) = 3

Answers

In order to build the 5 models of sodium bicarbonate, NaHCO₃, the student requires;

5 Red jelly beans5 White jelly beans5 Black jelly beans, and 15 Blue jelly beans

What are scientific models?

A scientific model is a depiction of a set of concepts, events, or processes that is physical, mathematical, conceptual, or both.

The students need to build five models to represent the molecular structure of sodium bicarbonate, NaHCO₃.

The model is to be built from the following:

Red jelly beans represent sodium atoms

(Na) White jelly beans represent hydrogen atoms

(H) Black jelly beans represent carbon atoms

(C) Blue jelly beans represent oxygen atoms (O)

A molecule of NaHCO₃ contains 1 atom of Na, 1 atom of H, 1 atom of C, and 3 atoms of O.

Therefore, 5 models of NaHCO₃ will require 5 atoms of Na, 5 atoms of H, 5 atoms of C, and 15 atoms of O.

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C + 2zno > CO2 + 27n

How many grams of

carbon dioxide will be

produced if 135 grams

of ZnO is completely

reacted?

Answers

36.5 g [tex]CO_2[/tex]  will be produced if 135 grams [tex]ZnO[/tex]  is completely reacted.

First, Write a Balanced Equation

[tex]C+2ZnO[/tex] → [tex]Co_2 +2Zn[/tex]

According to Avogadro's Law, "identical volumes contain equal quantities of molecules." This indicates that, in contrast to solids and liquids, gases have additive volumes. The mole-fraction-weighted average molecular weight is calculated by adding the molecular weights of each component. Of course, the mole fractions and the volume fractions are the same (E.V.E.N. principle.)

According to a scale where the atomic masses of hydrogen, carbon, nitrogen, and oxygen are 1, 12, 14, and 16, respectively, molecular weight is the total of all the atomic masses of the atoms that make up a molecule. For instance, water has a molecular weight of 18 (2 + 16), which is made up of two hydrogen atoms and one oxygen atom. likewise known as molecular mass.

We know,

MW of [tex]ZnO[/tex] = 81.41 g

MW of [tex]CO_2[/tex] = 44.01 g

So, amount of [tex]CO_2[/tex] will be produced,

[tex]\frac{135*44.01}{81.41} = 36.5 g[/tex]

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absorption of uv light in the ozone layer causes the dissociation of oxygen and ozone. which requires longer wavelength to dissociate

Answers

The dissociation of ozone layer requires longer wavelength to dissociate.

The absorption of ultraviolet (UV) light by the ozone layer is a vital part of the Earth's atmosphere, as it helps to protect our planet from the harmful rays of the sun. When UV light is absorbed by the ozone layer, it causes the dissociation of oxygen and ozone molecules.

To achieve this process, longer wavelengths of UV light are required. This is due to the fact that UV light of longer wavelengths has more energy, which is needed to break apart the molecules.

The result of this process is that the ozone layer is able to absorb more of the harmful UV radiation and protect the Earth.

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What is the frequency of electromagnetic radiation with a wavelength of 420 nm?

Answers

The frequency of electromagnetic radiation with a wavelength of 420 nm is 8 × 10¹⁴Hz.

How to calculate frequency?

Wavelength is the length of a single cycle of a wave, as measured by the distance between one peak or trough of a wave and the next.

It is often designated in physics as λ, and corresponds to the velocity of the wave divided by its frequency i.e. λ = v/f

According to this question, a wavelength of 420nm is given, which is equivalent to 4.2 × 10-⁷m.

4.2 × 10-⁷m = 3 × 10⁸/f

f = 3 × 10⁸ ÷ 4.2 × 10-⁷

f = 8 × 10¹⁴Hz

Therefore, 8 × 10¹⁴Hz is the frequency of the wave.

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what material is used to make a saucepan lid and why?​

Answers

Answer:

Lids can be made of the same material as the pan or glass. Glass lids are made of tempered (strengthened) glass. A glass lid lets the cook watch the food cooking and usually has a reinforcing stainless steel rim.​

Answer: These are most commonly made out of stainless steel or polycarbonate, as these materials can withstand a wider range of temperatures, but polypropylene and polyethylene lids are also available

Explanation:

Consider the balanced chemical equation. H2O2(aq)+3I−(aq)+2H+(aq)→I3−(aq)+2H2O(l) In the first 15. 0 s of the reaction, the concentration of I− drops from 1. 000 M to 0. 871 M. Part A Predict the rate of change in the concentration of H2O2 (Δ[H2O2]/Δt). Express the rate to three significant figures and include the appropriate units. Δ[H2O2]/Δt Δ [ H 2 O 2 ] / Δ t =


Part B Predict the rate of change in the concentration of I3− (Δ[I3−]/Δt). Express the rate to three significant figures and include the appropriate units. Δ[I3−]/Δt Δ [ I 3 − ] / Δ t =

Answers

The rate of change in concentrations of H2O2 and I3- are 2.8 x 10^-3M/s when the concentration of I− drops from 1. 000 M to 0. 871 M in 15s.

We know that the reaction rate is equal to change in concentration of reactant or product/ time taken.

The change in concentration of I− = 1.000 M - 0.871 M = 0.129M

The time taken to drop the concentration of I- (t) = 15s

Then the required reaction rate for I- = 0.129/15 = 0.0086M/s

The rate of change of concentration of H2O2 is

From the reaction: H2O2(aq)+3I−(aq)+2H+(aq)→I3−(aq)+2H2O(l)

(a) 3 moles of I⁻ are used up for every 1 mole of H2O2

Hence, the rate of change in concentration of H2O2 is:

Δ[H2O2]/Δt = 0.0086 M/sec * 1/3 = 0.00286 = 2.8 x 10^-3M/s

(b) Similarly for every 3 moles of I- 1 mole of I3- is used up. So,

The rate of change in concentration of I3- is:

Δ[I3−]/Δt = 0.0086 M/sec * 1/3 = 0.00286 = 2.8 x 10^-3M/s

Hence the rate of change in concentrations of H2O2 and I3- are same.

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the following mechanism had been proposed for the reaction of h2(g) with icl(g). what rate law would be observed if this is the correct mechanism?

Answers

The rate law that is consistent with the proposed mechanism is [-d[H₂]/dt = k[H₂][ICl].

The sum of the two processes produces the overall reaction, which is:

H₂(g) + 2ICl(g) → 2HCl(g) + I₂(g)

We must take into account the rate-determining step, which is the step with the slowest rate, in order to derive the rate law for the total reaction. It is step 1 in this instance.

H₂(g) + ICl(g) → HI(g) + HCl(g) is the rate-determining step (g)

This step's rate rule is-d[H₂]/dt = k[H₂][ICl]

[ICl]

We can assume that the concentration of HI is always in equilibrium with the concentrations of H₂ and ICl because step 2 is quick.

Therefore, -d[H₂]/dt = k[H₂][ICl] is the rate law for the entire reaction.

Therefore,  [-d[H₂]/dt = k[H₂][ICl] is the rate law that is consistent with the hypothesized mechanism.

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Can someone help me find the mass of water
Heat absorbed by water
Energy released by food (calories)
Energy released by food (cal/g)
% error

Answers

The moisture content is determined as follows, (weight of the container with wet soil minus weight of the container with dry soil) divided by (weight of the container with dry soil minus weight of the container), then multiplied by 100 to express as a percentage.

How are calories consumed by water calculated?You must determine the "Q" for water or the amount of energy absorbed or given out in order to compute the energy that the water has absorbed. When calculating energy in joules or calories, multiply your answer by either 4.184 J/g Co or 1 cal/g Co.The moisture content is determined as follows, (weight of the container with wet soil minus weight of the container with dry soil) divided by (weight of the container with dry soil minus weight of the container), then multiplied by 100 to express as a percentage.The moisture content is determined as follows, (weight of the container with wet soil minus weight of the container with dry soil) divided by (weight of the container with dry soil minus weight of the container), then multiplied by 100 to express as a percentage.

The complete question is,

How is water absorption calculated?

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What is the half-life for a first-order reaction that has a rate constant of 2. 3 x 10^-4s^-1
A. 3,013 seconds
B. 0. 00033 seconds
C. 0. 00016 seconds
D. 2,300 seconds​

Answers

A. 3,013 seconds is the half-life for a first-order reaction that has a rate constant of 2. 3 x 10^-4s^-1

A reaction's half-life is the amount of time needed for the reactant concentration to drop to half its initial value. The concentration of the reactant has no bearing on the half-life of a first-order reaction. It is a constant and connected to the reaction's rate constant: t1/2 = 0.693/k. The phrase is frequently used in nuclear physics to refer to how long stable atoms last or how quickly unstable atoms decay radioactively.

half life (t1/2) = 0.693/ k

rate constant= 2.3*10-4

t1/2 = 0.693/2.3*10-4

t1/2= 3013 seconds

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If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (2):

Answers

The energy released when adding an electron is the energy released in the atomization reaction. This energy is called electron affinity. The electron affinity of Si is 133.6 KJ/mol.

What is electron affinity ?

Electron affinity of an atom is its tendency to capture an electron from other atoms towards its nucleus. The more the electron affinity the more will be its reactivity.

The minimum energy required to remove a loosely bound electron from the valence orbital is called its ionization energy. In the given reaction, silicon is accepting an electron to form its atomic state. Thus, it is releasing the energy.

This energy released during gaining one electron is equal to the electron affinity of silicon that is 133.6 kJ/mol.

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when you boil a pot of liquid water, the water turns to steam and rises in the air. this is an example of

Answers

When a pot of liquid water is boiled, the water turns to steam and rises into the air. This is an illustration of a physical change, specifically a phase change.

When water is heated, the energy added to the water causes the water molecules to move faster and overcome the forces holding them together in a liquid state. This causes the water molecules to change into a gaseous state or steam. The water molecules have not formed a new substance, they have simply changed from a liquid to a gas. A physical change is a type of change in which a substance changes form or appearance, but not its chemical composition. Physical changes are generally reversible, meaning that the original substance can be recovered by reversing the process. Examples of physical changes include changes of state (such as melting, freezing, boiling, or condensation), changes in particle size (such as grinding or cutting a solid), and changes in particle shape or arrangement (such as bending or stretching a solid).

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When 2.25 g of Sodium Chloride reacts with excess Silver Nitrate, 3.45 g of precipitate is formed (Which is Silver Chloride). What is the percent of yield?

Answers

Taking into account definition of percent yield, when 2.25 g of Sodium Chloride reacts with excess Silver Nitrate, 3.45 g of precipitate is formed and the percent yield is 62.5%.

Reaction stoichiometry

In first place, the balanced reaction is:

NaCl + AgNO₃ → NaNO₃ + AgCl

By reaction stoichiometry, the following amounts of moles of each compound participate in the reaction:

NaCl: 1 moleAgNO₃: 1 moleNaNO₃: 1 moleAgCl: 1 mole

The molar mass of the compounds is:

NaCl: 58.45 g/moleAgNO₃: 169.87 g/moleNaNO₃: 85 g/moleAgCl: 143.32 g/mole

By reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

NaCl: 1 mole ×58.45 g/mole= 58.45 gramsAgNO₃: 1 mole ×169.87 g/mole= 169.87 gramsNaNO₃: 1 mole ×85 g/mole= 85 gramsAgCl: 1 mole ×143.32 g/mole= 143.32 grams

Definition of theoretical yield

The theoretical yield of a reaction is the amount of product that would be expected to be obtained from a reaction taking into account the ideal stoichiometry, ignoring side reactions, reversibility, losses, etc.

Theoretical yield of AgCl

The following rule of three can be applied: if by reaction stoichiometry 58.45 grams of NaCl form 143.32 grams of AgCl, 2.25 grams of NaCl form how much mass of AgCl?

mass of AgCl= (2.25 grams of NaCl× 143.32 grams of AgCl)÷ 58.45 grams of NaCl

mass of AgCl= 5.52 grams

Then, the theoretical yield of AgCl is 5.52 grams.

Definition of percent yield

The percent yield is the ratio of the actual return to the theoretical return expressed as a percentage and it is calculated as the experimental yield divided by the theoretical yield multiplied by 100%:

percent yield= (actual yield÷ theoretical yield)× 100%

Percent yield for the reaction in this case

In this case, you know:

actual yield= 3.45 gramstheorical yield= 5.52 grams

Replacing in the definition of percent yield:

percent yield= (3.45 grams÷ 5.52 grams)× 100%

Solving:

percent yield= 62.5%

Finally, the percent yield for the reaction is 62.5%.

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cold tcs food should be stored at an internal temperature of

Answers

Do not accept the food or throw the products away if the food temperatures fall outside of acceptable ranges or if TCS food exhibits signs of previous temperature abuse. Keep cold food at or below 41°F.

Do not accept the food or throw the products away if the food temperatures fall outside of acceptable ranges or if TCS food exhibits signs of previous temperature abuse. Keep cold food at or below 41°F. At supermarkets, eateries, and other establishments that sell ready-to-eat meals, customers are always demanding TCS food items. At the point of sale, people are pickier and look for foods from vendors they believe will provide a high-quality and safe product. Managers and employees need to be aware of all the supply chain locations where TCS foods are at risk for time and temperature excursions just for this reason.

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Which of the following represents a cesium ion?? A. Cs2+ B. Cs+ C. Cs- D. Cs2-

Answers

Answer:

The correct answer is B. Cs+ represents a cesium ion.

g a 0.1599 gram sample containing an unknown amount of chloride is titrated with a 0.7890 m silver nitrate solution. 30.83 ml of the silver nitrate solution was required to reach the end point of the titration. what is the mass percent of chloride in the original sample?

Answers

To determine the mass percent of chloride in the original sample, we need to first calculate the amount of chloride present in the sample. We can do this by using the balanced equation for the reaction between chloride and silver nitrate:

AgNO3 + Cl- → AgCl + NO3-

First, we need to calculate the number of moles of silver nitrate used in the titration:

moles of AgNO3 = volume (L) x molarity (M) = 0.03083 L x 0.7890 M = 0.02439 moles

Next, we can use the balanced equation to find the number of moles of chloride:

moles of Cl- = moles of AgNO3 = 0.02439 moles

Finally, we can use the number of moles of chloride to calculate the mass of chloride in the sample:

mass of Cl- = moles of Cl- x molar mass of Cl- = 0.02439 moles x 35.5 g/mol = 0.868 g

To find the mass percent of chloride in the original sample, we divide the mass of chloride by the total mass of the sample and multiply by 100%.

mass percent of Cl- = (mass of Cl- / total mass of sample) x 100%

Since we don't know the total mass of the sample, we can use the mass of chloride we just calculated and the formula above to find the mass percent of chloride in the original sample.

mass percent of Cl- = (0.868 g / 0.1599 g) x 100% = 54.3%

So, the mass percent of chloride in the original sample is 54.3%.

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true or false rf values should be kept in the range of 0.2 to 0.8 for the most effective separation when more than one compound is present in the sample.

Answers

The Rf values should be kept in the range of the 0.2 to 0.8 for the most effective separation when the more than one compound is present in sample. This statement is True.

The Rf value is dependent on the polarity of the compound. Polar compounds will have the lower Rf values than the nonpolar compounds under the same conditions. The Rf value is defined as the ratio in between the distance the solute travelled and the distance the solvent travelled.

Thus, this statement is true that Rf values should be kept in the range of the 0.2 to 0.8 for the most effective separation when the more than one compound is present in sample.

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PLEASE HELP


Look at the chemical reaction between vinegar and baking soda
C₂H₂O₂
acetic acid
+
NaHCO,
sodium bicarbonate
NaC,H,O,
sodium acetate
1. What are the reactants in the reaction?
2. What are the products in the reaction?
H₂O
water

Answers

The reactants in the reaction between vinegar and baking soda are acetic acid (C₂H₂O₂) and sodium bicarbonate (NaHCO₃).

A metathesis reaction

Reactants: acetic acid (C2H2O2) and sodium bicarbonate (NaHCO3)Products: sodium acetate (NaC2H3O2) and water (H2O)Acetic acid is the main component of vinegar, and sodium bicarbonate is the main component of baking soda. The products in the reaction are carbon dioxide (CO₂), water (H₂O), and sodium acetate (NaC₂H₃O₂). Carbon dioxide is produced when the acetic acid reacts with sodium bicarbonate, and it is released in the form of bubbles.Water is a byproduct of the reaction, and sodium acetate is produced when the acetic acid is neutralized by the sodium bicarbonate. Overall, the reaction between vinegar and baking soda is an acid-base reaction, which produces carbon dioxide, water, and sodium acetate.The reaction is a great example of how a simple combination of two household ingredients can create something amazing.

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oxidation of citronellol, a constituent of rose and geranium oils, with pcc yields isopulegone. arrange the mechanism in the correct order for the converstion of citronellol to isopulegone.

Answers

The oxidation of citronellal to citronellic acid was studied using molecular oxygen as oxidant and gold-containing supported catalysts under aqueous conditions.

What is citronellol?

In skincare, citronellol is prominently used as a fragrance ingredient for cosmetics and personal care products. Research studies show topical application of citronellol possesses low permeability and potency, which demonstrates good skin tolerability.

Citronellol is a component of citronella oil; the United States FDA considers both substances GRAS (Generally Recognized as Safe for food use).

Citronellol is a volatile fragrance chemical extracted from geranium, rose, and other plants, citronellol has a characteristic grassy, citrus-like scent.

Use of citronella oil-based beauty products improves complexion by evening out the skin tone, clear blocked pores, and also reduces various signs of ageing. Owing to the antiseptic nature, the oil also prevents wounds and injuries and facilitates healing.

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in the laboratory, a student dilutes 11.4 ml of a 7.04 m perchloric acid solution to a total volume of 200.0 ml. what is the concentration of the diluted solution?

Answers

A student dilutes the 11.4 ml of a 7.04 M perchloric acid solution to the total volume of 200.0 ml. The concentration of the diluted solution is 0.40 M.

The Volume of stock solution, V₁ = 11.4 mL

The Molarity of stock solution, M₁ = 7.04 M

The Volume of diluted solution, V₂ = 200 mL

The molarity of diluted solution, M₂ = ?

The dilution law is given as :

M₁V₁ = M₂V₂

M₂ = M₁ V₁ / V₁

M₂ = ( 7.04 × 11.4 ) / 200

M₂ = 0.40 M

Thus, The molarity of the diluted solution is 0.40 M.

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Molybdenum can form a wide series of halide compounds, including four different fluoride compounds. the percent by mass of molybdenum in the four compounds is 63.0%, 56.0%, 50.0%, and 46.0%. determine the formula and name for each of the four different molybdenum fluorides.

Answers

Answer: 215.0%

Explanation:

the tarnish that forms on objects made of silver is solid silver sulfide; it can be removed by reacting it with aluminum metal to produce silver metal and solid aluminum sulfide. how many moles of silver are made if you react 6 moles of aluminum with 4 moles of silver sulfide? hint: write a balanced chemical equation first.

Answers

The balanced chemical formula for the reaction of silver sulphide and aluminium is

3Al + 4Ag2S 6Ag + Al2S3.

The balanced equation's stoichiometry can be used to calculate how many moles of silver were produced during the reaction. In other words, for every 4 moles of silver sulphide, 6 moles of silver are produced due to the silver's 4/4 coefficient on the reactant side and 6/6 coefficient on the product side.

The number of moles of silver produced by the reaction of 6 moles of aluminium and 4 moles of silver sulphide is 6. The balanced equation's stoichiometry, which states that 4 moles of silver sulphide result in the production of 6 moles of silver, can be used to determine this.

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what best describes an aqueous solution of potassium chloride (kcl when dissolved in water becomes k and cl-)

Answers

The ions are hydrated as potassium chloride (KCl) dissolves in water. The charges on the K⁺ and Cl⁻ ions draw the polar water molecules to them.

Aqueous or molten electrolytes are available. Compounds must be dissolved in water or melted to form a liquid before electrolysis can take place. This implies that when a current is applied, the ions are free to move around.

Water is present in aqueous electrolytes. The solution formed when a chemical dissolves in water contains water. This proves that the solution contains both the ionic component and water molecules.

Ions separate out of water. The two ions that can form from water molecules are hydrogen ions (H⁺) and hydroxide ions (OH⁻). They combine to form water molecules or H₂O.

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if dry ice is compressed at a temperature below its triple point, will it melt? if not, what happens?

Answers

The triple point was also the lowest pressure where a liquid phase can coexist with a solid as well as vapor. At pressures just under 0.00604 abm, ice somehow doesn't melt to a liquid when it warms; instead, the solid sublimes straight to water vapor.

Unlike other solids, it cannot melt and instead transforms immediately into a gas. This is known as sublimation. Dry ice has a temperature of roughly -109° F! It melts quickly, so if you require dry ice for such an experimental business project, buy that as near to the time as feasible.

Any dry ice held in a closed container might pressurize the container due to the quick emission of huge amounts of CO2 gas. If the gas remains unable to escape for an extended period of time at normal room temperature, any such container could explode.

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Determine whether each of the following bonds would be polar or nonpolar.
1. H-H
2. H-O
3. H-F
4. Br-Br
5. H-Cl
6. H-N
Determine the electronegativity differences and type of bond. Circle the most electronegative atom.
1. H and I
2. S and O
3. K and Br
4. Si and Cl
5. H and F
6. Se and S

Answers

1) Nonpolar bond

2) Polar bond

3) Polar bond

4) Non polar bond

5) Polar bond

6) Polar bond

What are the polar bonds?

We know that the bonds can be said to be polar when the electronegativity difference between the atoms that compose the bond is high. As such, a bond that we have between two elements that are the same would be non polar.

We know that the element that would be the most electronegative would be the non metallic element that is part of the bond. The more the electronegativity difference, the more polar the bonds.

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