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1) Get the chemical formula to determine the number of each type of atom present in the compound.

2) Multiply the atomic weight (get it from the Periodic Table) of each element by the number of atoms of that element present your specific compound

3) Do the Sum in unit grams/mole

NaCl

(1x23 grams/mole Na) + (1x 35.5 grams/mole Cl) = 58.5 grams/mole NaCl

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Q: How do you find the molar mass of a compound using the periodic table?
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