How many grams of water are made from the reaction of 4.0 grams of hydrogen gas?
Given the reaction: 2H₂ + O₂ → 2H₂O

Question

How many grams of water are made from the reaction of 4.0 grams of hydrogen gas? Given the reaction: 2H₂ + O₂ → 2H₂O

Quizplus · Accepted Answer

According to the stoichiometry of the balanced equation, 2 moles of hydrogen gas react with 1 mole of oxygen gas to produce 2 moles of water. Therefore, 4 g of hydrogen gas (which is equivalent to 2 moles) will react with 32 g of oxygen gas (which is equivalent to 1 mole) to produce 36 g of water (which is equivalent to 2 moles). So the answer is 36 g.

How Many Grams of Water Are Made from the Reaction