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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?
v₁x100/(v₁+ v₂ + v₃)= percent of component 1
%_v/v=200x100/950 

2      30.0 ml of 3.00 M H₂SO₄ are mixed with 2.00 liters water. what is the concentration of the resulting solution?
moles/(total volume in liters) =M
.0300 Lx 3.00 M/2.03 L = M of new solution.

3      A .250 N solution of H₂SO₄ has what molarity? Show dimensional analysis.
.250 eq/liter x 1mole/2 eq = .125M

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.

DT_f = k_fm=1.86ºC/m x 10.0g CaCl₂ x 1mole CaCl₂/110.98g x 3mole ions/1 mole CaCl₂
T_f=0 ºC - DT_f

5      Put the following in order of increasing boiling point.

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

Lowest Highest

_.1 m sugar_ < _1 m NaCl_ < _.1 m BaCl₂_ < _ .1 m AlCl₃_