A solution is prepared by mixing $7 m l$ of alcohol into $50 m l$ of water. Calculate the percentage by volume of alcohol in the solution.

1.22 %

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1.34 %

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12.28 %

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13.44 %

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Solution

The correct option is C $12.28 %$
Volume of solute (alcohol) $= 7 m L$ .
Volume of solution = volume of solute + volume of solvent(water)
$= 7 + 50$
$= 57 m L$ .
% by volume of solute $= \frac{V o l u m e o f s o l u t e}{V o l u m e o f s o l u t i o n} \times 100$ $= \frac{7}{57} \times 100$
$= 12.28 %$

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A solution is prepared by mixing 7 ml of alcohol into 50 ml of water. Calculate the percentage by volume of alcohol in the solution.​

The correct option is C ​12.28 %​Volume of solute (alcohol) =7 mL. Volume of solution = volume of solute + volume of solvent(water) =7+50 =57 mL. % by volume of solute =VolumeofsoluteVolumeofsolution×100 =757×100 =12.28 %

A solution is prepared by mixing $7 m l$ of alcohol into $50 m l$ of water. Calculate the percentage by volume of alcohol in the solution.