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Question

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.

A
50%
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B
25%
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C
20%
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D
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 =volume of solutevolume of solution×100
=50200×100=25%


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