The molarity of a potassium fluoride solution is 3.75. Calculate the mole fraction of potassium fluoride in the solution

Q: Determine mass percent of a solution of sucrose (C12H22O11) prepared by dissolving 3.245 g of…

A: The solution consists of sucrose as solute and water as solvent. The mass of the solution is equal…

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: Differentiate among a homogeneous solution, suspension and a colloidal solution, giving a suitable…

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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: How many grams of chlorine gas are needed to make 5.00×106 g5.00×106 g of a solution that is 1.80…

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Q: Calculate the mole fraction of CH2O and C3H8O in a solution containing equal masses of both.

A: Molar mass of CH2O = 30 g/mole Molar mass of C3H8O = 60 g/mole

Q: The mole fraction of Calcium chloride in an aqueous solution is 0.0942. What is the mass percent of…

A: Mole fraction of CaCl2 = 0.0942

Q: What is the Molarity of a solution of NaCl in water, if the mole fraction of NaCl is 0.111? The…

A: Given,mole fraction of NaCl = 0.111density of the solution = 1.19 g/mL

Q: A solution is prepared by dissolving 25.0 g of NH3 in 250.0 g of water. The density of the resulting…

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Q: What are the mole fractions of HNO3 and water in a concentrated solution of nitric acid (68.0% HNO3…

A: Solution contains 68.0% HNO3 by mass. Thus, 100 g HNO3 solution contains 68.0 g HNO3 and 32 g (100 g…

Q: What is the total mass (in grams) of a solution that contains 22.5 grams of MgCl2 where the solution

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Q: Calculate the molal concentration, molar concentration, and mole fraction of 6.25% solution of H3PO4…

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Q: A sample of seawater contains 2.6 g of calcium ions in 5826 kg of solution. What is the calcium ion…

A: Given,  Mass of calcium ion = 2.6 g  Mass of solution = 5826 kg                                 =…

Q: An aqueous solution is 3.50 % by mass potassium bromide, KBr, and has a density of 1.02 g/mL. The…

A: % By mass = 100 x Mass of solute/Mass of solutionNumber of mol = Mass/molar massMole fraction of…

Q: A 106.1 mL of an H2SO4 solution contains 2.49 g of H2SO4. Calculate the normality of the solution.…

A: * Volume of Solution = 106.1 ml ( 1 L = 1000 mL) Volume of Solution = 0.1061 L * Mass of Solute…

Q: Determine the density of a liquid given there is 150.0mL of the solution contains 2.50 x 1023…

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Q: An engine coolant is an aqueous solution of ethylene glycol, HOCH¿CH¿OH, 40.0 % by mass with a…

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Q: Determine the molarity and mole fraction of a 1.03 m solution of acetone (CH3COCH3) dissolved in…

A: Given,the molality of the acetone solution = 1.03 mdensity of acetone = 0.788 g/cm3density of…

Q: What mass of ammonium sulfate, (NH4)2SO4 must be added to prepare 200.0 g of a 3.5% solution of…

A: 3.5% Solution of (NH4)2SO4 means 100g solution of ammonium sulfate contains 3.5g (NH4)22SO4.

Q: How many grams of sodium hydroxide must be dissolved in 200 g of water to produce a 4.00% by mass…

A: Given data: Mass of water = 200 g Concentration of solution = 4% by mass  Given data: Mass%=Mass of…

Q: What mass of a concentrated solution of nitric acid (68% HNO3) is needed to prepare 400.0 g of a 10%…

A: Percentage of any soution can be determined by using the formula :              %ge of solution=mass…

Q: A student dissolves 15. g of ammonia (NH,) in 325. mL of a solvent with a density of 1.09 g/mL. The…

A: Molarity = 1000 x W/(MM x V) Where, W = mass of solute in g, V = volume of solution in mL and MM =…

Q: What is the mole fraction of ethanol of an aqueous solution that is 20% ethanol?

A: Given : Ethanol = 20%