Question

a chemist combines water and isopropanol to make a mixture with a volume of 53 milliliters (ml). the volume of isopropanol in the mixture is 10 ml. what is the volume of water, in ml, in the mixture? (assume that the volume of the mixture is the sum of the volumes of water and isopropanol before they were mixed.)

Explanation:

Step1: Identify the total - volume and isopropanol volume

The total volume of the mixture is 53 mL and the volume of isopropanol is 10 mL.

Step2: Calculate the volume of water

Let the volume of water be $V_w$. We know that the total volume $V_{total}=V_w + V_{isopropanol}$. So $V_w=V_{total}-V_{isopropanol}$.
$V_w = 53 - 10$

Answer:

43