mehuldugad23507

When 2.45 g of an unknown weak acid (HA) with a molar mass of 85.0 g/mol is dissolved in 250.0 g of water, the freezing point of the resulting solution is -0.258 ∘C.

Calculate Ka for the unknown weak acid.

Express your answer using two significant figures.

Calculate K. for the unknown weak acid. The freezing point depression constant (K) for water is 1.86 °C/m.

Express your answer using two significant figures.