Question: A 0.400 M formic acid (HCOOH) solution freezes at 20.758C. Calculate the Ka of the acid at that temperature. (Assume that molarity is equal to

A 0.400 M formic acid (HCOOH) solution freezes at 20.758°C. Calculate the Ka of the acid at that temperature. (Assume that molarity is equal to molality. Carry your calculations to three significant figures and round off to two for Ka.)

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