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Acids and Bases in Water

The pH of 0.0...

Question

The pH of $0.0 1 M N a O H (a q)$ solution will be:

7.01

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12

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2

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9

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Solution

The correct option is B $12$
$N a O H 0.01 M \to N a^{+} + O H^{-} 0.01 M$
$∴ [O H^{-}] = 0.01 M$
$∴ p O H = - l o g [O H^{-}] = - l o g 0.01 M = 2$
$\Rightarrow p H = 14 - p O H = 12$

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