Question

What is the volume of 75.0 g of ethanol’s

Answer 1

13.0

%

Step-by-step explanation:

By definition, a solution's percent concentration by mass,

% m/m

, tells you the number of grams of solute present for every

100 g

of the solution.

This means that if you know the number of grams of ethanol dissolved in exactly

100 g

of this solution, you know the solution's percent concentration by mass.

Now, you know that your solution contains

75.0 g

of ethanol and

500.0 g

of water. The total mass of the solution is equal to

75.0 g

+

500.0 g

=

575.0 g

So you can say your

575.0-g

sample of this solution contains

75.0 g

of ethanol, the solute.

I hope this helps you