What is the process for doing L.3 on page F94?

[Jorja De Jesus 2C]

For part A, do I find how many moles the reactants are and then find out how much moles would be in 1.5 g of Li3N, and then use a proportion to find out how much H2 is needed? How do I set that up so that the grams can cancel out leaving moles? Is it the same for part B?

[Michelle Le 1J]

You would first convert the grams of Li3N to moles, and then use the mole to mole ratio of Li3N to H2 in order to answer part A. Same thing with part B, just you have the moles of LiH already, so you do the mole to mole ratio and then convert the moles of Li3N to grams.