Rank the following acids in strength (from weakest to strongest). A ) HC2H3O2 B) HOCl C) HCN D) HCl

Answer 1

A) HC2H3O2 = acetic acid Ka = 1.76x10^-5

B) HOCl = hypochlorous acid Ka = 3.5x10^-8

C) HCN = hydrocyanic acid Ka = 6.17x10^-10

D) HCl = hydrochloric acid no Ka value (strong acid)

From weakest to strongest we have..

HCN < HOCl < HC₂H₃O₂ < HCl