Other Resources


  1. How to Calculate the Molar Mass
  2. Converting Between Moles and Mass I
  3. Calculate mass of a sample with same number of atoms as a second sample
  4. How to Calculate an Average Atomic Weight
  5. How to Determine Percent Abundances
  6. Determine an isotopic weight from percent abundances
  7. Determine an atomic weight from mass and formula data
  8. Calculate an empirical formula I
  9. Calculate an empirical formula II
  10. Determine the empirical formula using combustion analysis
  11. Determine the molecular formula
  12. Determine the water of hydration for sodium carbonate
  13. Calculate an atomic weight using mass data of several compounds

Videos which use Avogadro's Number

  1. Calculating a value for the Avogadro Constant
  2. An illustration of the size of Avogadro's Number
  3. Given 14.05 g of SO2, how many molecules is this?
  4. Given 4.91 x 1022 formula units of CuSO4, how many grams is this?
  5. What is the mass, in milligrams, of 19 atoms of nickel?
  6. How many total atoms are in 27.2 g of SF6?
  7. How many oygen atoms in 4.64 x 10-3 mol of Al(NO3)3?
  8. How many atoms of hydrogen are in 100 g of methane?
  9. Determine number of atoms using volume and density
  10. Using Avogadro's Number coupled with the Ideal Gas law


  1. Some on-line molecular weight calculators:


  1. Some Avogadro Number Analogies
  2. Origin of the word "mole"