A solution is prepared by adding 1 mole ethyl alcohol in 9 mole...

A solution is prepared by adding 1 mole ethyl alcohol in 9 mole water. The mass percent of solute in the solution is ________ (Integer answer) (Given : Molar mass in (\mathrm{g} \mathrm{mol}^{-1}) Ethyl alcohol : 46 water: 18)

Correct answer

Step-by-step solution

Mass percent of Alcohol

\begin{aligned} & =\frac{\text{ Mass of ethyl alcohol }}{\text{ Total mass of solution }} \times 100 \\ & =\frac{1 \times 46}{1 \times 46+9 \times 18} \times 100=\frac{4600}{208} \\ & =22.11 \text{ Or } 22\end{aligned}

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