The $pH$ of a solution is $9.95$. Calculate the $\left[OH^{-}\right]$ concentration.
- A$6.71 \times 10^{-4} \ M$
- B$1.12 \times 10^{-4} \ M$
- C$4.45 \times 10^{-5} \ M$
- D$8.91 \times 10^{-5} \ M$
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