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Section: Data and Calculations 1. Unknown sample number 2. Mass of test tube: 3. Mass of test tube and sample before heating 1A-12 #65 30,103 sest plate 31.068 269 3,0844 30.932 2 V in bortte 1.059 4. Mass of test tube and sample after heating helyet 5. Mass of sample in the tube before heating: 6. Mass of residue in test tube after heating 0.13G 7. Mass of oxygen gas released: Deus 8. Volume of oxygen gas at room temperature: when ever left 9. Atmospheric pressure: 740,3 25.2 26.0 sh 10. Vapor pressure of water: AB 11. Temperature of water: Parm PHRO Questions to be completed while in the laboratory) 1. Calculate the pressure of the collected oxygen gas (ie, correct for the vapor pressure of water). 2. How much volume would the gas in question #1 occupy at STP? 3. Determine the moles of oxygen gas collected from the experimental mass of the oxygen gas