Explain how many mL of O2 would be produced by the reaction of 8.03mL of 30.0% H2O2? The barometric pressure (Patm) was 764torr as well as the temperature was 24.0 Celsius. Convert % H2O2 by mass to M of H2O2 after that moles of H2O2 then miles of O2, then L of O2