What is the volume of alcohol present in 620 mL of a 40.0% (viv) solution of alcohol?

Apr 13, 2017

We get a volume of $248 \cdot m L$

Explanation:

By definition, we have a solution that is 40% $\frac{v}{v}$.

That is "Volume of alcohol"/"Volume of solution"xx100%=40%.

And 620*mLxx40%=248*mL.

Note that I have not assumed what the alcohol is, and what the solvent is - we have assumed also (fairly reasonably) that the volumes are additive.