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

$25\,^oC$ पर $BaS{O_4}$ का विलेयता गुणनफल $1.0 \times {10^{ - 9}}$ है तो $0.01\,M\,B{a^{2 + }}$ आयनों के विलयन से $BaS{O_4}$ के अवक्षेपण के लिए ${H_2}S{O_4}$ का आवश्यक सान्द्रण क्या होगा

A

${10^{ - 9}}$

B

${10^{ - 8}}$

C

${10^{ - 7}}$

D

${10^{ - 6}}$

Solution

(c) $BaS{O_4}⇌\mathop {\mathop {B{a^{ + 2 }}}\limits_{(S)\,\,\,\,\,\,\,} }\limits_{0.01\,\,\,\,} + \mathop {\mathop {SO_4^{ – \, – }}\limits_{(S)\,\,\,\,} }\limits_{5\,\,\,\,} $

${K_{sp}} = {S^2} = S \times S = 0.01 \times S$

${S_{(SO_4^{2 – })}} = \frac{{{K_{sp}}}}{{{S_{(B{a^{ + + }})}}}} = \frac{{1 \times {{10}^{ – 9}}}}{{0.01}} = {10^{ – 7}}$ मोल/लीटर

Standard 11
Chemistry

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