CHEM PROBLEMS!!?

Posted on 2016-10-14 18:40:00 in Chemistry by SHILIP

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. 

Part B 
To identify a diatomic gas (X2), a researcher carried out the following experiment: She weighed an empty 1.4-L bulb, then filled it with the gas at 2.00 atm and 26.0 ∘C and weighed it again. The difference in mass was 3.1 g . Identify the gas. 
Express your answer as a chemical formula.

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