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If 14.7 cm3 of alcohol is present in 70 cm 3 of its aqueous solution, the percentage by volume of alcohol will be?

Sagot :

Answer: The percentage by volume of alcohol will be 21%.

Explanation:

Given: Volume of solute = 14.7 [tex]cm^{3}[/tex]

Volume of solvent = 70 [tex]cm^{3}[/tex]

Formula used to calculate percentage by volume is as follows.

[tex]Percentage volume = \frac{volume of solute}{volume of solvent} \times 100[/tex]

Substitute the values into above formula as follows.

[tex]Percentage volume = \frac{volume of solute}{volume of solvent} \times 100\\= \frac{14.7 cm^{3}}{70 cm^{3}} \times 100\\= 21 percent[/tex]

Thus, we can conclude that the percentage by volume of alcohol will be 21%.

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