Chemistry

Problem

What volume of 0.500 M

\mathrm{HCl}

must be added to 100.0 mL of 0.200 M dimethylamine (

\mathrm{(CH_3)_2NH}

K_b = 5.9\times10^{-4}

) at 25 °C to prepare a buffer with pH = 10.60? a)

16\text{ mL}

59\text{ mL}

23.8\text{ mL}

34\text{ mL}