What is the concentration (ppm)of water vapor in a sample of air that has a partial pressure of water of 1.20 torr and a total pressure of air of 695 torr?

Question

Quizplus · Accepted Answer

To calculate the concentration of water vapor in ppm, we use the following formula:

concentration (ppm) = (partial pressure of water / total pressure of air) * 10^6

Substituting the given values in the formula, we get:

concentration (ppm) = (1.20 / 695) * 10^6
                   = 1724.46
                   = 1.7 × 10^3

Therefore, the concentration of water vapor in ppm is 1.7 × 10^3, which is closest to choice D.

What Is the Concentration (Ppm)of Water Vapor in a Sample