To a solution of 0.1 M and 0.8 M

CHEMISTRY · Subjective · AP · Chemistry · Equilibrium · Equilibrium

Problem

To a solution of 0.1 M

Mg^{2+}

and 0.8 M

NH_4Cl

, an equal volume of

NH_3

is added which just gives precipitate. Calculate

[NH_3]

in solution.

K_{sp}

Mg(OH)_2 = 1.4 \times 10^{-11}

and

K_b

NH_4OH = 1.8 \times 10^{-5}