# Question #12208

##### 1 Answer

#### Explanation:

A solution's **volume by volume percent concentration**,

You already know the number of milliliters present in *conversion factor* to figure out how many milliliters of ethanol would be present in

Keep in mind that you can do this because solutions are homogeneous mixtures, i.e. they same the same composition throughout.

You will have

#100 color(red)(cancel(color(black)("mL solution"))) * "29.4 mL ethanol"/(359color(red)(cancel(color(black)("mL solution")))) = "8.19 mL ethanol"#

This means that the solution's volume by volume percent concentration is equal to

#color(darkgreen)(ul(color(black)("% v/v = 8.19% ethanol")))#

The answer is rounded to three **sig figs**.