Question

A water sample contains chlorobenzene with a concentration of 15 ppb (by mass). If the water density is 1.00 g/mL, what volume of water contains 5.00 × 10² mg of chlorobenzene?

A. 33.3 L
B. 50.0 L
C. 75.0 L
D. 100.0 L

Answer 1

The volume of water containing 5.00 × 10² mg of chlorobenzene is 0.5 L.

Step-by-step explanation:

To calculate the volume of water that contains a certain mass of chlorobenzene, we need to use the equation:

Volume = Mass / Density

First, we need to convert the mass of chlorobenzene to grams:

5.00 × 10^2 mg = 5.00 × 10^2 g

Then, we can use the equation to find the volume:

Volume = 5.00 × 10^2 g / 1.00 g/mL

Volume = 5.00 × 10^2 mL

Since there are 1000 mL in a liter, we can convert the volume to liters:

Volume = 5.00 × 10^2 mL / 1000 = 0.5 L

Therefore, the volume of water that contains 5.00 × 10² mg of chlorobenzene is 0.5 L.