The elements lithium and oxygen react explosively to from lithium oxide (Li2O). How much lithium oxide will form if 3.03 mol of lithium react?

Answer in units of mol

2 answers

2Li + O2 ==> Li2O
3.03 mol Li x (1 mol Li2O/2 mols Li) = 3.03 x 1/2 = ? mols Li2O
If you want grams, then g Li2O = mols x molar mass.
The elements lithium and oxygen react explosively to form lithium oxide. How many moles of lithium oxide will form if 2 mol of lithium react ?