Question

How many moles of water are produced when 6.0 moles of hydrogen gas react with 2.5 moles of oxygen gas?

Answer 1

Answer:

2.5 mole O2 should react (2 * 2.5) = 5.0 mole H2 but there is 6.0 mole H2. H2 remain in excess. O2 is the limiting reactant. mole of H2O formed = 2 * 2.5 = 5.0 mole.