Question

A scuba diver’s air tank contains oxygen, helium, and nitrogen at a total pressure of 205 atmospheres. The partial pressure of nitrogen is 143 atmospheres, and the partial pressure of helium is 41 atmospheres. What is the partial pressure of oxygen in the tank?

Answer 1

20

Step-by-step explanation:

Answer 2

answer is 20

explanation: total Pressure = 205

partial pressure of N = 143

partial pressure of He = 41

total pressure = partial pressure of N + partial pressure of O + partial pressure of He

partial pressure of O = 205 - 185 = 20