What units are used to express pressure measurements?
What are standard conditions for gas measurements?
Convert the following pressures to pressures in standard atmospheres: a. 151.98 kPa b. 456 torr
A sample of nitrogen gas is collected over water at a temperature of 23.0°C. What is the pressure of the nitrogen gas if atmospheric pressure is 785 mm Hg?
Relate the effect of temperature and pressure on a gas to the model of a gas given by the kinetic- molecular theory.
A sample of helium gas has a volume of 200.0 mL at 0.960 atm. What pressure, in atmospheres, is needed to reduce the volume at constant tem- perature to 50.0 mL?
A sample of nitrogen gas occupies 1.55 L at 27.0°C and 1.00 atm. What will the volume be at −100.0°C and the same pressure?
What volume (in milliliters) at STP will be occupied by 0.0035 mol of methane, CH4?
State the ideal gas law equation, and tell what each term means.
What would be the units for R if P is in pascals, T is in kelvins, V is in liters, and n is in moles?
A 4.44 L container holds 15.4 g of oxygen at 22.55°C. What is the pressure?
Compare diffusion with effusion.
State Graham’s law of effusion.
Estimate the molar mass of a gas that effuses at 1.6 times the effusion rate of carbon dioxide.
Determine the molecular mass ratio of two gases whose rates of effusion have a ratio of 16 : 1.