Question

A chemist is using

386

milliliters of a solution of acid and water. If
12.8
%

of the solution is acid, how many milliliters of acid are there? Round your answer to the nearest tenth.

Answer 1

49.6mL

Explanation:

Given parameters:

Volume of solution = 386mL

Percentage composition of acid = 12.86%

Solution

The solution is made up of water and acid in their respective proportions.

We have been given the percentage composition of acid to be 12.86%, so we can easily obtain the exact volume of the acid in the compositon.

Volume of acid in solution = perenctage of acid x volume of solution

Volume of acid =
`(12.86)/(100)` x 386mL = 49.6396mL

Rounding to the nearest tenth gives: 49.6mL