Molarity of a solution containing $1 g N a O H$ in $250 m l$ of solution is

0.1 M

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1 M

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0.01 M

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0.001 M

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Solution

The correct option is A $0.1 M$
$Mass of NaOH (m) = 1g$

$The volume of water (V) = 250 ml$

$Mol. wt of NaOH (m) = 40g/mol$

$M o l a r i t y (M) = \frac{m \times 1000}{M \times V (m l)}$

$M o l a r i t y (M) = \frac{1 \times 1000}{40 \times 250}$

$M = 0.1 M$

$Hence, the correct optio.n is A$

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