Pick a number...

Quote:

---

Originally Posted by hallie531

what are the number of grams of Li3N?

---

Your question doesn't make sense...

but 1 mol of a compound has the mass equal to the sum of the relative mass of each atom present in the compound.

In other words, find the molecular mass of Li3N.

Then, 1 mol of this has this mass in grams.

If you're looking for some number 'x' moles, then

x moles of Li3N will have a mass x times the mass of 1 mol.