QUIZ 14j                       CHEM 20                   Name_____________________ DTf = kfm     DTb = kbm        kf(water)=1.86 °C/m          kb(water)=.52°C/m

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1 150.0 ml of alcohol, 600 ml of water, and 200 ml of ethylene diamine are mixed. What is the volume percent of ethylene diamine?
 
 
 
 
 
 
 
 
 
 

2 30.0 ml of 3.00 M H2SO4 are mixed with 2.00 liters water. what is the concentration of the resulting solution?
 
 
 
 
 
 
 
 
 
 

3 A .250 N solution of H2SO4 has what molarity? Show dimensional analysis.
 
 
 
 
 
 

4 10.0 g of calcium chloride (CaCl2) is dissolved in 500 ml of water. What is the freezing point of the solution? Assume the density of water is 1.00 g/ml.
 
 
 
 
 
 
 
 

5 Put the following in order of increasing boiling point.

.1 m NaCl, .1 m BaCl2, .1 m sugar, .1 m AlCl3

Lowest Highest

_______ < _______ < _______ < _______