What is the hydrogen ion concentration in a 0.15 molar solution of acetic acid in water at 25 degrees C? Acetic acid is 1.3 % dissociated.

Answer 1

Set up an ICE chart.
.............CH3COOH ==> CH3COO^- + H^+
initial......0.15M.........0.........0
change........-x...........x.........x.
equil.......0.15-x.........x.........x.
So what is x? 0.15*0.013