How many liters of oxygen are made at 25.0 degrees Celsius and 1.245 atm when 0.1449 miles of H2O2 decomposes according to the following equation 2 H2O2 > 2H2O + O2

Answer 1

The balanced equation is 2H₂O₂ ==> 2H₂O + O₂

To find liters of O₂ formed, we must first find MOLES of O₂ formed, then convert that to liters.

1. 0.1449 moles H₂O₂ x 1 mole O₂/2 moles H₂O₂ = 0.07245 moles O₂ formed
2. PV = nRT; V = nRT/P; V = (0.07245 mol)(0.0821 Latm/Kmol)(298K)/1.245 atm; V = 1.424 liters O₂