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1. When a liquid-solution obeys Raoult's Law, it's called a/an:
perfect solution Raoult's solution ideal solution a solution that obeys Raoult's law none of the above

2. The change in heat associated with the formation of a solution is called:
free energy of solution entropy of solution formation energy enthalpy of solution none of the above

3. Calculate the pressure needed to prevent osmosis when 10.0 g KCl is added to 150 mL of water at 25oC.
20.1 atm 40.1 atm 65.7 atm 80.2 atm 160 atm

4. 1.00 * 10-3 of compound A was dissolved in enough water to make 1.00 mL of solution. The osmotic pressure of this solution was found to be 1.12 torr at 25oC. Calculate the molar mass.
6.01 * 10-5 g 1.66 * 104 g 1.66 g 6.01 g 5.12 g

5. Which of the following would serve as the best electrical conductor (assuming constant molarities)?
HC2H3O2 H2O H2CO3 H2SO4 HF

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