Question

a chemist is using 337 milliliters of a solution of acid and water. if 13.8% of the solution is acid, how many milliliters of acid are there? round your answer to the nearest tenth.

Explanation:

Step1: Identify the formula

We use the formula: Amount of acid = Percentage of acid×Total volume of solution.

Step2: Convert percentage to decimal

$13.8\%$ is converted to decimal as $0.138$.

Step3: Calculate the amount of acid

The total volume of the solution is 337 milliliters. So the amount of acid is $0.138\times337$.
$0.138\times337 = 46.506$.

Step4: Round the answer

Rounding 46.506 to the nearest tenth gives 46.5.

Answer:

46.5