Identify the following as true or false:

a) A 1.20 mol sample of helium gas (He) occupies the same volume at SATP as a 1.20 mol sample of oxygen gas (O2) occupies at SATP.

b) Graphs of volume vs. temperature and pressure vs. temperature for ideal gases should be perfectly straight line.

c) Equal volumes of the same gas at the same temperature and pressure contain equal number of grams.

Fill in the blanks:

d) The Law of Combining Volumes states that, at a constant temperature and pressure, volumes of gaseous reactants and products of chemical reactions are always simple ratios of ___ numbers.

e) Equal volumes of the same gas at the same temperature and pressure contain ___ numbers of molecules

f) Avogadro's Theory states that equal ___ of gases at the same temperature and pressure contain equal numbers of molecules.