Question

$A{g}^{+}+N{H}_3\rightleftharpoons \left[Ag\right(N{H}_3){]}^{+}$ $k_1=3.5\times {10}^{-3}$
$\left[Ag\right(N{H}_3){]}^{+}+N{H}_3\rightleftharpoons [Ag\left(N{H}_3{)}_2^{+}\right]$; $k_2=1.7\times {10}^{-3}$

• A. $6.08\times {10}^{-6}$
• B. $6.08\times {10}^6$
• C. $6.08\times {10}^{-9}$
• D. None of these

Answer 1

The correct option is A $6.08\times {10}^{-6}$

$A{g}^{+}+N{H}_3\rightleftharpoons \left[Ag\right(N{H}_3){]}^{+}$ $k_1=3.5\times {10}^{-3}$
$\left[Ag\right(N{H}_3){]}^{+}+N{H}_3\rightleftharpoons [Ag\left(N{H}_3{)}_2^{+}\right]k_2=1.7\times {10}^{-3}$
Adding: $A{g}^{+}+2N{H}_3\rightleftharpoons \left[Ag\right(N{H}_3{)}_2^{+}]$
$k=k_1\times k_2=5.95\times {10}^{-6}$