Chemistry

Problem

25.0\,\text{mL}

sample of

0.200\,\text{M}

methylamine,

\text{CH}_3\text{NH}_2

(

K_b = 4.4 \times 10^{-4}

), is titrated to its equivalence point with

0.200\,\text{M}

HCl. Calculate the pH of the resulting solution at

25\,^\circ\text{C}