If a person breathes at a rate of 14 respirations per minute, and each respiration involves 0.5 dm3 of air, what will be the total mass of air breathed in a day? Take and , and assume that the air behaves as an ideal gas with a molar mass of 0.029 kg/mol.
Gaseous boron trifluoride, , is contained in a 4.341 L bulb at 788.0 K at a pressure of 1.220 atm.
How many moles of is this?
How many grams of is this?
A 5.00 L sample of is held at a pressure of 2.00 atm and a temperature of 315 K. Assuming ideal-gas behavior and a value for the gas constant of m3⋅atm/K⋅mol, how many moles of are present in this sample?