I can determine the molar mass of an element by looking on the _____ under the atomic mass for the element. For example the molar mass of phosphorus is 30.974 grams/mole. Avogadro’s number tells me the amount of representative particles in 1 mole of any substance. This means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.
