Calculate the amount of glucose required to prepare $250$ g of $5 %$ solution of glucose by mass.

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Solution

Percentage of solution= $5$
Mass of solution= $250 g$
% of solution= $\frac{Mass of solute}{Mass of solution} \times 100$
$∴$ Mass of solute= $\frac{5 \times 250}{100} = 12.5 g$

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