CHM 2046C  Sample Exam            Name: ______________

 

Module Eight Part II: Solutions Chapter 14    

Part O: Concentration Calculations   12 points

 

You want to prepare an aqueous solution of glycerol,  C3H5(OH)3  in which the mole fraction of the solute is 0.093. What mass of glycerol must you add to 425 g of water to make the solution? What is the molality of the solution? What is the weight percent?

 

Mass of Glycerol

 

 

 

 

 

 

 

 

 

Molality

 

 

 

 

 

 

 

 

 

Weight Percent

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Similar Problems: Kotz 6th Chapter 14 p692 Q 1-12