A solution contains 40 mL of ethyl alcohol mixed with 100mL of water. What is the concentration of the solution in terms of volume by volume percentage?

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Solution

Volume of solute (ethyl alcohol) = 40mL

Volume of solvent (water) = 100 mL

Total volume of the solution = 40 + 100 = 140 mL

Volume by Vol. Percentage = $\frac{V o l u m e o f s o l u t e}{v o l u m e o f s o l u t i o n} \times 100$

$\Rightarrow$ $\frac{v}{v}$ % = $\frac{40}{140} \times 100$ = 28.57%

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A solution contains 40 mL of ethyl alcohol mixed with 100mL of water. What is the concentration of the solution in terms of volume by volume percentage?

Volume of solute (ethyl alcohol) = 40mL Volume of solvent (water) = 100 mL Total volume of the solution = 40 + 100 = 140 mL Volume by Vol. Percentage = Volume of solutevolume of solution×100 ⇒ vv % = 40140×100 = 28.57%