1. Hydrogen peroxide, H2O2, is used by some water treatment systems to remove the disagreeable odor of sulfides in drinking water. An aqueous solution of H2O2 prepared in the laboratory was found to have a concentration of 20.0% by mass. What is the mole fraction of H2O2?

Q: What is the mole fraction of CH3CH2OH in an aqueous solution that is 31.9% CH3CH2OH by mass? thanks…

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Q: What is the mole fraction of NaOH in an aqueous solution thatcontains 22.8% NaOH by mass?

A: Mole fraction of a substance in the amount or moles of that substance in total amount of he mixture.…

Q: 1. How do the properties of gas mixtures, like the atmosphere, compare with those of other…

A: As per the rules only the first question can be answered.

Q: Commercial nitric acid is 16.0 M HNO3(aq) and has a density of 1.42 g mL-1. What is the mole…

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Q: The diving atmosphere used by the U.S. Navy in its undersea Sea-Lab experiments consisted of 0.036…

A: Given: Mole fraction of O2 = 0.036 mol. Mole of fraction of N2 = 0.056 mol. And mass of He = 8.13 g.…

Q: A solution is prepared by dissolving 17.75 g sulfuric acid, H2SO4, in enough water to make 100.0 mL…

A: Number of moles of sulfuric acid = given mass / molar mass =17.75 g / 98.079 g/mole = 0.18 mole

Q: A 55-g sample of a gaseous fuel mixture contains 0.43 mole fraction propane, C3H8; the remainder of…

A: Mole fraction is the ratio of mole of propane to the total mole of solution

Q: The mole fraction of He in a gaseous solution prepared from 6.0 g of He, 6.5 g of Ar, and 10.0 g of…

A: Mole fraction of gas A = nA/ nT Mole fraction of one gas can be calculated by dividing the moles of…

Q: How many grams of water should be evaporated from 800 g of a 15% solution of a substance to increase…

A: The mass of the solution is = 800 g The mass percent of the solution is = 15 % The mass percent of…

Q: A solution of iodine in methylene chloride, CH,Cl, contains 1.50 g l, (MM = 253.8 g mol-1) and 56.00…

A: Mole fraction of a substance in a mixture corresponds to the ratio of mole of that substance to the…

Q: What volume of 0.600 mol/L CuSO, 5H,O solution is required to prepare 75.0mL of 0.400 mol/L…

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Q: Two volatile substances are mixed with one another so that the solution has a vapor pressure of 125…

A: Raoult's Law is generally used to calculate the partial vapor pressure of volatile solute in a…

Q: How would you prepare 405 g of an aqueous solution that is 5.00% sodium sulfate, Na2 SO4, by mass?…

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Q: A student takes 58.6 grams of ethanol and adds 54 grams of water to it.  What is the mole fraction…

A: Given information:Mass of ethanol = 58.6 gMass of water = 54 g

Q: Calculate the mole fraction of nitric acid of a 14% by mass aqueous solution of nitric acid

A: Given : Aqueous solution of nitric acid means the solvent is water. And percent by mass of nitric…

Q: An aqueous solution is 22.0 % by mass silver nitrate, AGNO3, and has a density of 1.22 g/mL. The…

A: The relative quantities of substances present in a mixture is determined using mole fraction, the…

Q: How many grams of NH3 must be dissolved in 345.4 mL of water to obtain a solution with a mole…

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Q: Can an aqueous solution be prepared that is 30% by mass KNO3 at 20oC?

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Q: A chemist combined chloroform (CHCl3)(CHCl3) and acetone (C3H6O)(C3⁢H6O) to create a solution where…

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Q: How would you prepare 425g of an aqueous solution containing 2.40% by mass of sodium acetate…

A: Given: The mass % of sodium acetate (NaC2H3O2) solution, =  2.40%

Q: You prepare a solution by dissolving 0.653 mol of an organic liquid in 46.5 g water. What is the…

A:

Q: The mole fraction of sodium bromide, NaBr, in an aqueous solution is 7.36×102. The percent by mass…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: What is the mole fraction of acetic acid in vinegar? Vinegar is an aqueous solution that contains…

A: Given:5.00% by mass acetic acid in vinegar.Molar mass of acetic acid = 60.1 g/mol.Assume that we…

Q: A sulfuric acid solution containing 572g of sulfuric acid per liter of solution has a density of…

A: Given data: Mass of sulfuric acid (m)=572 g. The density of the solution (ρ)= 1.33 g/mL. To find:…

Q: Caffeine (C8H10N4O2) is a stimulant found in coffee and tea. If a solution of caffeine in the…

A: Given: Concentration in molality of caffeine = 0.0500 m Assuming 1 Kg i.e. 1000 g of the solvent…

Q: What is the mole fraction of water in 200g of 89% by mass ethanol solution?

A: Mass percent of ethanol = 89 % Mass of solution = 200g Calculate the mass of ethanol in 200 g of…

Q: How many grams of chlorine gas are needed to make 5.60 x 10° g of a solution that is 1.40 ppm…

A: Given, concentration of solution =1.40 ppmmass of solution =5.60×106 gramwe are asked to calculate…

Q: A chemist combined chloroform (CHCl3)(CHCl3) and acetone (C3H6O)(C3H6O) to create a solution where…

A: Chloroform and acetone solution whose molarity is to be determined.

Q: 2.2.91 moles of silicon dioxide (SiO) are dissolved in a 1.93 kg aqueous solution. What are the ppm…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is the mole fraction of O2 in a mixture of 6.00 g He, 19.0 g O2, and 21.0 g N2?     0.608…

A:

Q: An antiseptic solution contains hydrogen peroxide, H2O2, in water. The solution is 0.833m H2O2. What…

A: Calculation  of mole fraction  of H2O2

Q: A bottle of rubbing alcohol contains 75% by mass 2-propanol (C3H8O) in water. What are the mole…

A: Given data: Concentration of solution = 75% by mass  Formula used: Mole fraction=Moles of…

Q: 1. What is the mole fraction of commercial "concentrated" hydrofluoric acid, which is 55.0 % HF by…

A: Given data contains, Mass percent of concentrated HF is 55.0%. 55.0% by mass of HF means 55 grams of…

Q: MOLE FRACTION AND DILUTION What is the mole fraction of solute and solvent in a solution prepared…

A: Mole fraction of any component is given by the following equation: Mole fraction=number of moles of…

Q: Determine mass percent of a solution of sucrose (C12H01) prepared by dissolving 3.245 g of C12H,O in…

A: mass percent is way to express concentration of solute in a solution

Q: What is the mole fraction of 1.8 g glucose (C6H1206) in 90 g of water?

A:

Q: 15. A solution that is 33.6 % by mass of phenol (CH OH) in water is prepared. What is the mole…

A: Given, Mass by percentage of phenol 33.6%

Q: What is the molality of a 60.5% by mass of nitric acid (HNO3) solution?

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Q: If 2.00 g of helium gas and 5.29 g of oxygen gas are mixed together, what is the mole fraction of…

A:

Q: What is the mole fraction of 120 g NaOH in 1 L (1000g) of water?

A: Molecular mass of sodium hydroxide = 40 g.Number of moles of sodium hydroxide = 120/40 = 3…

Q: A gaseous solution contains 1.6 g oxygen, 16 g sulfur dioxide. and 5.1 g hydrogen sulfide. What is…

A: Given,  A gaseous solution contains 1.6 g oxygen(O2 ) , 16 g sulfur dioxide( SO2 ) and 5.1 g…

Q: Calculate the mole fraction of nitric acid of a 9.60% (by mass) aqueous solution of nitric acid. O…

A:

Q: For a molecular species, its molar mass in g/mole would be the same number as its molecular mass in…

A: Mass of one atom of oxygen = 16 amu  .....we know Mass of one mole of oxygen  (is given by formula)…

Q: A bleaching solution contains sodium hypochlorite, NaClO, dissolved in water. The solution is 0.650…

A:

Q: A dilute solution of acetic acid produced by fermentation and oxidation of natural carbohydrates is…

A: Mole fraction of solute is the ratio of moles of solute to the total number of moles solute and…

Q: What is the mole fraction of NaOH in an aqueous solution that contains 33.9% NaOH by mass?

A: Given,  An aqueous solution contain 33.9% NaOH by mass, the mole fraction of NaOH is:

Q: A dilute solution of acetic acid produced by fermentation and oxidation of natural carbohydrates is…

A:

Q: How many milliliters of water must be added to 18.5 g of C6H12O6 in order to obtain a solution with…

A: We have to predict the mass of water needed.

Q: What mass of cesium bromide must be added to 0.500 L of water (d = 1.00 g/mL) to produce a 0.739 m…

A: Molality is the total moles of a solute contained in a kilogram of a solvent. Molality is also known…

Q: The mole fraction of urea (MW = 60.0 g/mol) in a solution prepared by dissolving 45 g of urea in 50…

A: