The $pH$ of $0.01 \ M$ solution of acetic acid is $5.0$. What are the values of $[H^{+}]$ and $K_a$ respectively?
- A$1 \times 10^{-5} \ M, 1 \times 10^{-8}$
- B$1 \times 10^{-5} \ M, 1 \times 10^{-9}$
- C$1 \times 10^{-4} \ M, 1 \times 10^{-8}$
- D$1 \times 10^{-3} \ M, 1 \times 10^{-8}$
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