Calculate molarity of $K O H$ in the solution prepared by dissolving its 5g in enough water to from 500ml of solution.

0.20

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0.16

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0.005

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0.10

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Solution

The correct option is A $0.20$
Given, $W = 5 g$
$G M W = 40 g$
$V = 500 m l$

Molarity= $\frac{W \times 1000}{G M W \times V}$
$= \frac{5 \times 1000}{40 \times 500}$
$= 0.2 M$ .

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