Chapter 16.6, Problem 2CP

A 0.12-M solution of a weak base has a pH of 10.76 at $\text{25°C}$. Determine $K_{\text{b}}$.

a)

$2.5 \times {10}^{-21}$

b)

$8.3 \times {10}^8$

c)

$4.0\times {10}^{-8}$

d)

$2.8 \times {10}^{-6}$

e)

$1.0 \times {10}^{-14}$