Question

How many moles of water can you form from 4 moles of hydrogen and excess oxygen

Answer 1

From the balanced chemical equation, 2 moles of hydrogen react with 1 mole of oxygen to produce 2 moles of water. As such, 4 moles of hydrogen will react completely in the presence of excess oxygen to make 4 moles of water.

Step-by-step explanation:

To determine how many moles of water can be produced from 4 moles of hydrogen with excess oxygen, we can use the balanced chemical equation for the reaction:

• 2 H₂(g) + O₂(g) → 2 H₂O(g)

This equation tells us that 2 moles of hydrogen (H₂) react with 1 mole of oxygen (O₂) to produce 2 moles of water (H₂O). Hence, with 4 moles of hydrogen, we are dealing with double the stoichiometric proportion needed to react with oxygen, leading to the formation of 4 moles of water:

• 4 moles H₂ × (2 moles H₂O / 2 moles H₂) = 4 moles H₂O

Since the reaction has excess oxygen, all hydrogen will be used up, resulting in 4 moles of water being produced.

Answer 2

2H2 + O2 = 2H2O 2 moles forms 2 moles of water 4 moles will form 4 moles.