a chemist is using 368 milliliters of a solution of acid and water. if 14.2% of the solution is acid, how…

Explanation:

Step1: Convert percentage to decimal

To find the amount of acid, we first convert 14.2% to a decimal. We do this by dividing 14.2 by 100, so $14.2%=0.142$.

Step2: Calculate amount of acid

We multiply the total volume of the solution (388 milliliters) by the decimal - form of the percentage of acid. So the volume of acid $V = 388\times0.142$. $V=388\times0.142 = 54.096$ milliliters.

Step3: Round to nearest tenth

Rounding 54.096 to the nearest tenth, we look at the hundredths place. Since 9 > 5, we round up the tenths place. So $54.096\approx54.1$ milliliters.

Answer:

54.1