a chemist is using 337 milliliters of a solution of acid and water. if 18.9% of the solution is acid, how…

a chemist is using 337 milliliters of a solution of acid and water. if 18.9% of the solution is acid, how many milliliters of acid are there? round your answer to the nearest tenth.

a chemist is using 337 milliliters of a solution of acid and water. if 18.9% of the solution is acid, how many milliliters of acid are there? round your answer to the nearest tenth.

Answer

Explanation:

Step1: Convert percentage to decimal

To find the amount of acid, we first convert 18.9% to a decimal. 18.9% = 0.189.

Step2: Multiply total volume by decimal

We multiply the total volume of the solution (337 milliliters) by the decimal - equivalent of the percentage of acid. So, the volume of acid $V = 337\times0.189$. $V=337\times0.189 = 63.693$.

Step3: Round to nearest tenth

Rounding 63.693 to the nearest tenth gives 63.7.

Answer:

63.7