What is the mole fraction of the solute in a 1.00 m aqueous solution?

0.0354

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0.018

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0.177

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1.77

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Solution

The correct option is A 0.018
$1.00 M$ means $1$ mole of solute is dissolved in $1 k g$ of solvent.

Molar mass of water= $18$

$∴ 1 k g$ of water= $1000 / 18 = 55.56$ moles

Total mole in solution= $1 + 55.56 = 56.56$

$∴$ Mole fraction of solute= $1 / 56.56 = 0.018$

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