How many moles of water, H₂O, are produced from the reaction of 16 grams methane, CH₄, with an unlimited supply of oxygen, O₂. How many grams of H₂O is this? CH₄ + 2 O₂ → CO₂ + 2 H₂O A)0.889 mole, which is 16 grams B)2.0 moles of water, which is 32 grams C)2.0 moles of water, which is 36 grams D)1.0 mole of water, which is 18 grams

Question

Quizplus · Accepted Answer

From the balanced equation, we can see that 1 mole of CH4 produces 2 moles of H2O. 
The molar mass of CH4 is 16 g/mol. Therefore, the number of moles of CH4 used in the reaction is 16 g /16 g/mol = 1 mole. 
So, the number of moles of H2O produced is 2 moles. 
The molar mass of H2O is 18 g/mol, so the mass of 2 moles of H2O is 36 g. Therefore, the correct answer is C: 2 moles of water, which is 36 grams.

How Many Moles of Water, H2O, Are Produced from the Reaction

How Many Moles of Water, H₂O, Are Produced from the Reaction