A | B |
percent composition | a description of the relative amounts of each element in a compound |
empirical formula | the lowest whole- number ratio of the atoms of the elements in a compound |
22.4 L | the volume occupied by one mole of any gas at STP |
molar mass | the mass (in grams) of one mole of a compound |
mole | the SI unit representing 6.02 X 10^23 representative particles of a substance |
Avogadro's number | 6.02 X 10^23 particles |
standard temperature and pressure (00 C, 1 atm) | the temperature and pressure at which one mole of gas occupies a volume of 22.4 L |
molar volume | volume of a gas that contains one mole of the gas, is 22.4 L at STP |
Avogadro’s hypothesis | equal volumes of gases at the same temperature and pressure contain equal numbers of particles |
convert number of atoms to moles | divide number of atoms by 6.02 X 10^23 |