What volume of $0.8 M$ solution contains $0.1$ mole of solute?

100 m L

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125 m L

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500 m L

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62.5 m L

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Solution

The correct option is B $125 m L$
$Molarity = \frac{number of moles}{volume in litres} \Rightarrow volume in litres = \frac{number of moles}{molarity}$
$Volume = \frac{01}{0.8} = 0.125 L = 125 m L$

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