Stoichiometry Chemistry Example 3

Follow the full solution, then compare it with the other examples linked below.

Example 3

medium
How many moles of H2O\text{H}_2\text{O} are produced when 3.03.0 mol of H2\text{H}_2 reacts with excess O2\text{O}_2? (2H2+O2→2H2O2\text{H}_2 + \text{O}_2 \rightarrow 2\text{H}_2\text{O})

Solution

  1. 1
    Mole ratio: 2 mol H2\text{H}_2 → 2 mol H2O\text{H}_2\text{O} (1:1 ratio).
  2. 2
    So 3.03.0 mol H2\text{H}_2 produces 3.03.0 mol H2O\text{H}_2\text{O}.

Answer

3.0 mol H2O3.0\,\text{mol H}_2\text{O}
Read mole ratios directly from the balanced equation coefficients.

About Stoichiometry

The branch of chemistry that uses balanced chemical equations and mole ratios to calculate the precise quantities of reactants consumed and products formed in chemical.

Learn more about Stoichiometry →

More Stoichiometry Examples

Example 1 medium

How many grams of [formula] are needed to completely burn [formula] g of [formula]? ([formula])

Example 2 hard

How many grams of [formula] can be produced from [formula] g of [formula] and excess [formula]? ([fo

Example 4 medium

How many grams of [formula] form from [formula] mol of [formula] reacting with excess sodium? ([form

← All Stoichiometry Examples Stoichiometry Concept