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9 Cards in this Set

  • Front
  • Back
atomic mass
the mass of an atom expressed relative to the mass assigned to carbon-12
formula mass
sum of the atomic masses of all the atoms in a compound
mole
the number of atoms of that element equal to the number of atoms in exactly 12.0 grams of carbon-12
Avogadro's number
the quantity of items in a mole - 6.02X10^23
molar mass
the mass in grams of 1 mole of a substance
percentage composition
mass of each element in a compound compared to the entire mass of the compound and multiplied by 100 percent
empirical formula
formula that gives the simplest whole-number ratio of the atoms of the elements
molecular formula
formula that gives the actual number of atoms of each element in a molecular compound
molar volume
volume of 1 mole of a gas at STP