GOB Chemistry 1 Final - Part 2 of 3
SAMPLE
Please be aware that you practice a sample exam set, which means that it’s mimicking a real exam. In order to have more accurate experience:
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9. Solutions / Freezing Point Depression / Problem 22
Lactic acid partially dissociates according to this following equation: CH3CH(OH)COOH(aq) ⇌ H+(aq) + CH3CH(OH)COO–(aq). A solution is formed by dissolving 1.50 mol of lactic acid in 1.00 kg water, where 1.00% of lactic acid dissociates to ions. Calculate the freezing point of the solution, given that Kf for water is 1.86 ºC/m.
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