Question

Part A Calculate the density of oxygen, O2, under each of the following conditions: STP 1.00...

Part A

Calculate the density of oxygen, O2, under each of the following conditions:

STP

1.00 atm and 35.0  ∘C

Express your answers numerically in grams per liter. Enter the density at STP first and separate your answers by a comma.
density at STP, density at 1 atm and 35.0  ∘C=   g/L

Part B

To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 3.9-Lbulb, then filled it with the gas at 2.00 atm and 29.0  ∘C and weighed it again. The difference in mass was 8.7 g . Identify the gas.

Express your answer as a chemical formula.

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