7. Gases

At standard temperature and pressure (STP), a 50-gram sample of H_2O(l) and a 100-gram sample of H_2O(l) have:

At standard temperature and pressure (STP), which of the following cylinders will contain the greatest number of gas particles?

At standard temperature and pressure (STP), which of the following gases occupies the greatest volume if 1 mole of each is measured?

Which of the following correctly represents the standard temperature and pressure (STP) values at sea level?

At standard temperature and pressure (STP), which gas sample contains the same number of molecules as 2.0 liters of CH_4(g) at STP?

Which of the following correctly represents the values for standard temperature and pressure (STP) in chemistry?