6-2.Equilibrium-II (Ionic Equilibrium)
medium

$25\,^oC$ તાપમાને $AgI$ નો દ્રાવ્યતા ગુણાકાર $1.0 \times {10^{ - 16}}\,mo{l^2}\,{L^{ - 2}}$ છે. તો $25\,^oC$ તાપમાને $KI$ ના ${10^{ - 4}}\,N$ દ્રાવણમાં $AgI$ ની દ્રાવ્યતા $(mol \, {L^{ - 1}})$ આશરે ..... થશે.

A

$1.0 \times {10^{ - 8}}$

B

$1.0 \times {10^{ - 16}}$

C

$1.0 \times {10^{ - 12}}$

D

$1.0 \times {10^{ - 10}}$

(AIPMT-2003)

Solution

(c) $AgI$ $ \rightleftharpoons $ $\mathop {A{g^ + }}\limits_{(s)} + \mathop {{I^ – }}\limits_{(s)\,\,} $; ${K_{sp}} = {S^2} = {10^{ – 4}} \times S$

$S = \frac{{1.0 \times {{10}^{ – 16}}}}{{{{10}^{ – 4}}}} = 1 \times {10^{ – 12}}\frac{{mo{l^2}}}{{{l^2}}}$

Standard 11
Chemistry

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