Question

2H2 + O2 --> 2H2O If 16 mol of oxygen were reacted with excess hydrogen gas, how many moles of water would be produced?

Answer 1

Start out with your given so that's 16 moles of O2. For every one mole of O2, there are 2 moles of H2O


(16 mol O2)* (2molesH2O/1molO2) = 32 moles of H2O

Answer 2

32 moles of water

Step-by-step explanation:

From the reaction, we can deduce that 1 mole of oxygen gas (O2) was used to produce 2 moles of water (H2O).

Hence, 16 moles of oxygen will produce "X" moles of water (where X is the unknown).

1 mole of O2 ⇒ 2 moles of H2O

16 moles of O2 ⇒ X

X =
`(16 * 2)/(1)` = 32 moles of H2O

16 moles of O2 will produce 32 moles of H2O