Find the number of moles of water that can be formed if you have 154 mol of hydrogen gas and 72 mol of oxygen gas.

77

Explanation:

H2O needs 2 hydrogens and you have 154 so 154/2 is 77

thats the most you can do

The answer is 144 mol.

Explanation:

"72 mol of oxygen will form only 144 mol of water, and 10 mol of hydrogen remain in excess, so the limiting reactant is oxygen and hydrogen is in excess."