J.R. S. answered 05/29/19
Ph.D. University Professor with 10+ years Tutoring Experience
HClO + CH3COONa ==> CH3COOH + NaCl
Without spectators: HClO + CH3COO- ===> CH3COOH + ClO-
Ka HClO = 3x10-8
Kb CH3COO- = 5.6x10-10
In aqueous solution, hydrolysis of acetate (CH3COO-) takes place to produce acetic acid (CH3COOH) and OH-. The Ka for CH3COOH would thus be Kw/Ka = 1x10-14/5.8x10-10 ≈ 1.8x10-5. This is a stronger acid (higher Ka) than hypochlorous acid, so the reaction would favor the reactants.