A solution has 0.05 M and 0.05 M

CHEMISTRY · Subjective · AP · Chemistry · Equilibrium · Equilibrium

Problem

A solution has 0.05 M

Mg^{2+}

and 0.05 M

NH_3

. Calculate the concentration of

NH_4Cl

required to prevent the formation of

Mg(OH)_2

in solution.

K_{sp}

Mg(OH)_2 = 9.0 \times 10^{-12}

and ionisation constant of

NH_3

1.8 \times 10^{-5}