A 0.1,N solution of an acid at room temperature has a degree of ionisation 0.1 . concentration of O{

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6-2.Equilibrium-II (Ionic Equilibrium)

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A $0.1\,N $ solution of an acid at room temperature has a degree of ionisation $ 0.1$ . The concentration of $O{H^ - }$ would be

A

${10^{ - 12}}\,M$

B

${10^{ - 11}}\,M$

C

${10^{ - 9}}\,M$

D

${10^{ - 2}}\,M$

Solution

(a) $[{H^ + }] = C \times \alpha = 0.1 \times 0.1 = {10^{ – 2}}\,M$

$pH = 2; pOH = 12 $ ; $[O{H^ – }] = {10^{ – 12}}\,M$.

Standard 11

Chemistry

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