How many grams of ammonia can be produced from 1.33 grams of nitrogen trichloride?

NCl3 ==> NH3 (not balanced)

1 mol NCl3 can produce no more than 1 mol NH3.
mols NCl3 = g/molar mass = 1.33/121 = 0.011
So 0.011 mols NH3, then
grams NH3 = mols NH3 x molar mass NH3