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please help with A and BPart A Calculate the density of oxygen, O2, under each of the following conditions: STP 1.00 atm and 15.0 oC Express your answers numerically in grams per liter. Enter the density at STP first and separate your answers by a comma. AE density at STP, density at 1 atm and 15.0 G C g/L Submit Hints My Answers Give Up Review Part Part B To identify a diatomic gas (X2 a researcher carried out the following experiment: She weighed an empty 1.3-L bulb, then filled it with the gas at 1.60 atm and 30.0 °C and weighed it again. The difference in mass was 2.3 g Identify the gas. Express your answer as a chemical formula Submit Hints My Answers Give Up Review Part

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