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Molarity

4.0 g of Na...

Question

$4.0 g$ of $N a O H$ is dissolved in $100 c c$ of solution. The normality of the solution is:

1.0

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0.1

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0.5

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0.4

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Solution

The correct option is D $0.5$
Because, volume = $100 c c = 0.1 l$ and
no. of moles = $\frac{2}{40} = 0.05$
$∴$ molarity = normality = $\frac{0.05}{0.1} = 0.5 N$

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