Question

A photographic"stop soap" contains 160ml of pure acetic acid HC2H3O2(1) solution.what is the percent by volume of acetic acid in the stop bath?

Answer 1

Let the volume of stop soap solution be xml

Percentage of acetic acid in stop soap solution =$160ml/xml \times 100\%$

NB: If the volume of the stop soap solution is known, the value of the percentage of acetic acid can be determined.