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What is the (1) molarity, (2) molality, and (3) mole fraction of a solution composed of 38% hydrochloric acid () by mass? The density of the solution is 1.19 g cm-3.

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Brian Hingpit
Brian HingpitLv10
1 Dec 2020

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Related questions

1. Common commercial hydrochloric acid is an aqueous solution that is 38% HCl by mass, with a density of 1.19 g/cm^3. Calculate the molarity of this reagent. Molarity = ___mol/L Calculate the molality of this reagent. Molality = ___mol/kg Calculate the mole fraction of this reagent. Mole fraction = 2. Common commercial nitric acid is an aqueous solution that is 70.% HNO3 by mass, with a density of 1.42 g/cm^3. Calculate the molarity of this reagent. Molarity = ___mol/L Calculate the molality of this reagent. Molality = ___mol/kg Calculate the mole fraction of this reagent. Mole fraction = 3. Common commercial sulfuric acid is an aqueous solution that is 95% H2SO4 by mass, with a density of 1.84 g/cm^3. Calculate the molarity of this reagent. Molarity = ___mol/L Calculate the molality of this reagent. Molality = ___mol/kg Calculate the mole fraction of this reagent. Mole fraction = 4.Common commercial acetic acid is an aqueous solution that is 99% by mass CH3CO2H, with a density of 1.05 g/cm^3. Calculate the molarity of this reagent. Molarity = ___mol/L Calculate the molality of this reagent. Molality = ___mol/kg Calculate the mole fraction of this reagent. Mole fraction = 5. Common commercial ammonia is an aqueous solution that is 28% NH3 by mass, with a density of 0.90 g/cm^3. Calculate the molarity of this reagent. Molarity = ___mol/L Calculate the molality of this reagent. Molality = ___mol/kg Calculate the mole fraction of this reagent. Mole fraction =

Common commercial acids and bases are aqueous solutions with the following properties:

Ā 

Density (g/cm3)

Mass percent of solute

Hydrochloric acid

1.19

38

Nitric acid

1.42

70

Sulfuric acid

1.84

95

Acetic acid

1.05

99

Ammonia

0.95

28

Ā 

Calculate the molarity, molality, and mole fraction of each of the preceding reagents.

Calculate the molality of a hydrochloric acid solution that is 26.4% by mass and has a density of 1.19 g mL^-1

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