Need chemistry help with the mass of an aqueous 22.9% sodium chloride solution

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What mass of an aqueous 22.9% sodium chloride solution contains 99.5 g of water?

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Dec 4th, 2015

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In a 100g of the aqueous solution, the mass of water is;

100 - 22.9 = 77.1g

Therefore; a solution that will contain 99.5g of water is;

99.5 x 100/77.1

=129.053g of water

The correct answer is;

A

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Dec 4th, 2015

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