There is 74.227 milliliters of acid.
Step-by-step explanation:
given
The volume of the solution of acid and water=373 mL
The percentage of acid in the solution=19.9%
If acid makes 19.9% of the total volume of the solution,then
percentage of water in the solution=100-19.9=80.1 %
we have to calculate the volume of acid in the solution
[tex]volume\ of\ acid=373\times 19.9/100\\=74.227 mL[/tex]
There are 74.227 milliliters of acid in the solution.