Question

A chemist is using 388 milliliters of a solution of acid and water. If 17.9% of the solution is acid, how many milliliters of acid are there? Round your answer to tnearest tenth.millilitersI need help with this problem.

Answer 1

Solution

Step 1

Amount of acid is 17.9% of 388

Step 2

$\begin{gathered} =\text{ 17.9\% of 388} \\ \\ =\text{ }\frac{17.9}{100}\text{ }\times\text{ 388} \\ \\ =\text{ 69.452} \end{gathered}$

Final answer

69.5 milliliters