2. The freezing point of compound A is -28oC and its Kf is 6.28. A solution of 25 g of compound B in 1000.g of compound A freezes at -12oC. Find the molecular weight of compound B.
22 g 5.02 g 9.81 g 12.6 g 14.4 g
3. Molality is measured in:
L/moles moles/L moles solute/kg solvent moles solute/ moles solvent + solute g/L
4. 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
5. Something dissolves in water to form a 2 m solution. If 2.0 liters contains 200 grams of the substance, then what is the molecular mass of the substance?
25 g/mol 50 g/mol 75 g/mol 100 g/mol 125 g/mol
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