(b) A mixture of helium, hydrogen and carbon dioxide gases are at a pressure of 1200 torr in a 4 L closed container. There are a total of 24 moles of gas molecules in the container. If the helium concentration is 2 moles/L and hydrogen concentration is 1.5 moles/L, estimate the partial pressure of carbon dioxide in atm.

Air entering the lungs ends up in tiny sacs called alveoli. It is from the alveoli that oxygen diffuses into the blood. The average radius of the alveoli is 0.0041 cm, and the air inside contains 14 percent oxygen. Assuming that the pressure in the alveoli is 1.0 atm and the temperature is 37 °C, calculate the number of oxygen molecules in one alveolus. For calculation purposes, assume that the average alveolus is a perfect sphere. Be sure your answer has the correct number of significant digits. Note: Reference the Fundamental Constants table for additional information. 8.486 x 10 10° | molecules x10

(b) If a 2.302g sample of impure cobalt(III) carbonate is heated, and 415mL of carbon dioxide is collected at 23°C and a pressure of 1.512atm, what is the percent cobalt(III) carbonate in the sample? (b) If a 2.302 g sample of impure cobalt(III) carbonate is heated, and 415 mL of carbon dioxide is collected at 23°C and a pressure of 1.512 atm, what is the percent. cobalt(III) carbonate in the sample?

a gas mixture contains sulfur hexaflouride at a pressure of 2.64 atms and diphosphorus pentoxide at a pressure of 1.58 atms. what is the mole fraction of diphosphorus pentoxide in this mixture?

A gaseous mixture consists of 1.26 mol of helium, 0.36 mol of neon, and 1.58 mol of argon. What is the mole fraction of helium in the mixture?

The pressure of a sample of argon gas was increased from 1.76 atm to 6.60 atm at constant temperature. If the final volume of the argon sample was 17.9 L, what was the initial volume of the argon sample? Assume ideal behavior. V= L

What is the partial pressure of CO2 if the total pressure is 0.61 atm and the partial pressure of ammonia is 0.26 atm?

The non-ideal molar volume of gaseous helium is approximately 20. L/mol. What is the density of this gas, in g/L?

A mixture of hydrogen and carbon dioxide gases contains hydrogen at a partial pressure of 333 mm Hg and carbon dioxide at a partial pressure of 518 mm Hg. What is the mole fraction of each gas in the mnixture? XH, Xco,

(a) A volume (25.0 L) of gas at 45 K is heated to 450 K. What volume (in L) does the gas now occupy? (b) A volume (50.0 mL) of gas at 400. °C is cooled to 50. °C. What volume (in mL) does the gas now occupy?