Question

What is the pH of a 0.5-molar solution of acetic acid? (KaHC2H3O2 = 1.8 x 10-5)

(A) A buffer solution is prepared by adding 0.10 liter of0.5-molar HC2H3O2 solution to 0.10 liter of 1.0-molar sodiumhydroxide solution. Compute the hydrogen ion concentration of thebuffer solution.

(B) Suppose that 0.010 liter of 0.50-molar hydrochloric acid isadded to 0.040 liter of the buffer prepared in (A) Compute thehydrogen ion concentration of the resulting solution.