It's really not that hard, it's just that we have to add another step in the end- which is converting moles to mass again, and that of course we can do by getting the molar mass.
Here is an example:
1. Lead (IV) Nitrate reacts with 3.5g of potassium iodide. How many grams of Lead (IV) Nitrate are required for a complete reaction?
Here is a video as well for more techniques and information about stoichiometry.