Question

What will be the concentration in % v/v if 5mL acetone dissolved in 100 mL water. ​

Answer 1

Volume percent is defined as:

v/v % = $\frac{vol. of solute}{vol. of solution} . 100$

        =  [ (volume of solute) / (volume of solution) ] x 100%

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v/v % = $\frac{5}{100}$ x 100

(both 100's will get cancelled)

∴ v/v % = 5%

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