If 148 moles of cr is reacted with 103 moles of o2 which

Question

Chromium metal will react with oxygen gas to produce chromium(III) oxide (molar mass = 152.0 g/mol), according to the equation below.

4 Cr _(s) + 3 O_{2 (g)} --> 2 Cr₂O_{3 (s)}  

a) If 1.48 moles of Cr is reacted with 1.03 moles of O₂, which reactant is limiting and which reactant is in excess? 

b) What is the theoretical yield (in grams) of Cr₂O₃?