A solution contains 50 mL of ethyl alcohol in 150 mL of water. Calculate the concentration of the solution in terms of volume by volume percentage of the solution.

50%

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25%

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20%

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52%

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Solution

The correct option is B 25%
Volume of solute (ethyl alcohol) = 50 mL

Volume of solvent (water) = 150 mL

Total volume of solution = 50 + 150 = 200 mL

Volume by volume percentage of solution $= \frac{v o l u m e o f s o l u t e}{v o l u m e o f s o l u t i o n} \times 100$
$= \frac{50}{200} \times 100 = 25 %$

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Q. A solution contains

50

mL of ethyl alcohol mixed with

150

mL of water. Calculate the concentration of the solution.

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A solution contains 50 mL of ethyl alcohol in 150 mL of water. Calculate the concentration of the solution in terms of volume by volume percentage of the solution.

The correct option is B 25%Volume of solute (ethyl alcohol) = 50 mL Volume of solvent (water) = 150 mL Total volume of solution = 50 + 150 = 200 mL Volume by volume percentage of solution =volume of solutevolume of solution×100 =50200×100=25%