A solution is prepared by adding 2 gr of a substance A to 18 gr H2O. Calculate the mass percentage of solute ?

Mass percentage of soluteA= mass of A mass of solution ×100=22gr of A+18gr of H2O×100=220×100=10%

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A solution is prepared by adding 2 gr of a substance A to 18 gr H₂O. Calculate the mass percentage of solute ?

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Detailed Solution

Mass percentage of solute
$A = \frac{mass of A}{mass of solution} \times 100$
$= \frac{2}{2 gr of A + 18 gr of H_{2} O} \times 100$
$= \frac{2}{20} \times 100 = 10 %$

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