Hi there, Here is a 2 step way to "Convert grams to moles" Step 1: Find the
Molecular Weight. We already know the number of grams, so unless it is
already given, we need to find the molecular weight of the chemical
substance. Step 2: Divide the Amount of the Compound in Grams by the Molecular Weight. We can now convert 100g of NaOH to moles. Hope this helps.