Chemistry Practice Problems Molality Practice Problems Solution: The density of a 4.500% by mass aqueous solution o...

Solution: The density of a 4.500% by mass aqueous solution of potassium sulfate, K2SO4, is 1.0370 g/mL. The molar mass of potassium sulfate is 174.3 g/mol. A. What is the molarity of the solution? B. What is the molality of the solution? C. What is the mole fraction of potassium sulfate?

Problem

The density of a 4.500% by mass aqueous solution of potassium sulfate, K2SO4, is 1.0370 g/mL. The molar mass of potassium sulfate is 174.3 g/mol. 

A. What is the molarity of the solution? 

B. What is the molality of the solution? 

C. What is the mole fraction of potassium sulfate?

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