Problem: Find the percent ionization of a 0.250 M solution of HC2H3O2. Express your answer numerically to two significant figures.

FREE Expert Solution

Step 1. Calculate [H+]

HC2H3O2  ā‡Œ H+   +  C2H3O2-

Ka=productsreactantsKa=[H+][C2H3O2-][HC2H3O2]=1.8×10-5[x][x][0.250]=1.8×10-5x2 = (1.8×10-5)(0.250)

x = 2.12x10-3 = [H+]


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Problem Details

Find the percent ionization of a 0.250 M solution of HC2H3O2. Express your answer numerically to two significant figures.