A basic buffer was made by mixing 25 of ammonia ( ) with 40 ammonium chloride solution

CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases

Problem

A basic buffer was made by mixing 25

\text{cm}^3

0.100 \text{ mol dm}^{-3}

ammonia (

\text{p}K_b = 4.75

) with 40

\text{cm}^3

0.100 \text{ mol dm}^{-3}

ammonium chloride solution. Calculate the pH of the buffer solution at 25 °C.