CH_4 (g) + H_2O (g) --> CO (g) + 3H_2 (g)

Question

How many moles of water vapor react to yield 144.84 moles of hydrogen?

I am confused on how exactly how to find this yield of water vapor

Answer 1

From the equation, it appears that each mole of H2O produces 3 moles of H2
so, just divide the H2 yield by 3 to get the H2O requirement.