Daltons and grahams law

Question

2.Blast furnaces give off many unpleasant and unhealthy gases. If the total air pressure is 0.99 atm, the partial pressure of carbon dioxide is 0.05 atm, and the partial pressure of hydrogen sulfide is 0.02 atm, what is the partial pressure of the remaining air?

 

 

 

3)      If the air from problem 2 contains 22% oxygen, what is the partial pressure of oxygen near a blast furnace?

Answer 1

Good afternoon.

For problem 2, we know that the total pressure must equal the sum of the partial pressures of carbon dioxide, hydrogen sulfide, and air. So we can perform the following operation:

(total pressure) - (pressure of carbon dioxide) - (pressure of hydrogen sulfide) = partial pressure of air

Problem 3:

One can take the partial pressure of air derived in problem 2 and multiply by 0.22

Logically, if the air contains 22% oxygen, then the partial pressure of oxygen will be 22% of the air pressure.