Step 1:
\The concentration of acetic acid is [HCH2H3O2] is 0.100 M.
\ka for acetic acid is
.
Definition of pH:
.
The equation is
.









Step 2:
\Find the pH of the solution.
\
The pH of the solution is 2.8729. \ \
\Solution:
\The pH of solution is 2.8729.