Calculate the mass of in g which must be added to 500 mL of 0.2 M to yield a solution…

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

Problem

Calculate the mass of

(\text{NH}_4)_2\text{SO}_4

in g which must be added to 500 mL of 0.2 M

\text{NH}_3

to yield a solution of pH = 9.35.

K_b

for

\text{NH}_3 = 1.78 \times 10^{-5}