Chemistry math question

Question

If 3.0 molesOf hydrogen peroxide decomposes What volume of Oxygen Gas was produced at a pressure of 1.0 ATM And a temperature of 23 Celsius?

Answer 1

1. Write equation for decomposition of H₂O₂
2. 2 H₂O₂ --> 2 H₂O + O₂
3. Set up a relational expression
4. (3 mol H₂O₂)/(2•1) = (x L O₂)/(1•22.4 L)
5. Solve
6. x = 67.2 L O₂