Answer to Question #64465 in General Chemistry for Sierra

Question

The chemical formula is As4+3O2=As4O6. The question I need help with is If you have 325.00 grams of Arsenic and 74.00 liters of Oxygen at STP, after the reaction is over, of which reactant do you have some left over?

Answer 1

n(As) = 4.33 mol and n(O2) = 3.3 mol. Thus Arsenic will be over.