1. Which of the following operations yields the number of moles of solute? (1 point)
   

molarity × moles of solution

molarity × liters of solution

molarity × mass of solution

moles of solutions ÷ volume of solution

1. To 225 mL of a 0.80M solution of KI, a student adds enough water to make 1.0 L of a more
   

dilute KI solution. What is the molarity of the new solution?

(1 point)

180M

2.8M

0.35M

0.18M

1. Which of the following is NOT a colligative property of a solution? (1 point)
   

boiling point elevation

supersaturation

vapor pressure lowering

freezing point depression

1. A solute depresses the freezing point because the solute ____. (1 point)
   

is colder than the solvent

disrupts crystal formation of the solvent

disrupts crystal formation of the solvent

tends to sink to the bottom of the solution

has bigger molecules than the solvent

1. How many milliliters of alcohol are in 167 mL of an 85.0% (v/v) alcohol solution? (1 point)
   

252 mL

228 mL

145 mL

142 mL