8. Gases, Liquids and Solids

A gas mixture contains 72.8% chlorine and 27.2% neon by mass. What is the partial pressure of neon in the mixture if the total pressure is recorded as 809 mmHg?

The partial pressure of N₂ in the air is 593 mmHg at 1 atm. What is the partial pressure of N₂ in a bubble of air a scuba diver breathes when he is 66 ft below the surface of the water where the pressure is 3.00 atm?

Determine the percent composition of air in the lungs from the following composition in partial pressures: PN₂= 573 mmHg, PO₂ = 100 mmHg, PCO₂ = 40 mmHg, and PH₂O = 47 mmHg; all at 37 °C and 1 atm pressure.

Suppose a mixture contains helium and oxygen gases. If the partial pressure of helium is the same as the partial pressure of oxygen, what do you know about the number of helium atoms compared to the number of oxygen molecules? Explain.

In certain lung ailments such as emphysema, there is a decrease in the ability of oxygen to diffuse into the blood.

b. Why does a person with severe emphysema sometimes use a portable oxygen tank?

In certain lung ailments such as emphysema, there is a decrease in the ability of oxygen to diffuse into the blood.

a. How would the partial pressure of oxygen in the blood change?

A mixture of nitrogen (N₂) and helium has a volume of 250 mL at 30 °C and a total pressure of 745 mmHg.

a. If the partial pressure of helium is 32 mmHg, what is the partial pressure of the nitrogen?

What is the total pressure, in millimeters of mercury, of a gas mixture containing argon gas at 0.25 atm, helium gas at 350 mmHg, and nitrogen gas at 360 Torr?

What is meant by partial pressure?

A mixture of nitrogen (N₂) and helium has a volume of 365 mL at 30 °C and a total pressure of 745 mmHg. (8.5, 8.6, 8.7)

a. If the partial pressure of helium is 65 mmHg, what is the partial pressure of the nitrogen?