The partial pressure of a gas in air is 1.87 torr and its concentration is 8.57 × 10³ ppm. The total air pressure is ________ torr.

Question

Quizplus · Accepted Answer

The concentration in ppm is the ratio of the partial pressure to the total pressure. Using the formula: (partial pressure/total pressure) × 10^6 = ppm, we can solve for the total pressure: (1.87/total pressure) × 10^6 = 8.57 × 10^3, which gives a total pressure of approximately 218 torr.

The Partial Pressure of a Gas in Air Is 1