How much AgBr could dissolve in \( 1.0 \mathrm{~L} \) of \( 0.40 \mathrm{M} \mathrm{NH}_{3} \) ?...

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How much AgBr could dissolve in \( 1.0 \mathrm{~L} \) of \( 0.40 \mathrm{M} \mathrm{NH}_{3} \) ? Assume that \( \mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}^{+} \)is the only complex formed. \( \left[\mathrm{K}_{\mathrm{f}}\left(\mathrm{Ag}\left(\mathrm{NH}_{3}\right)_{2}^{+}\right)=1 \times 10^{8}, \mathrm{~K}_{\mathrm{sp}}(\mathrm{AgBr})=5 \times 10^{-13}\right] \)
(b).
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