# CHEM

To identify a diatomic gas (X_2), a researcher carried out the following experiment: She weighed an empty 1.00-L bulb, then filled it with the gas at 1.10atm and 23.0 degrees celsius and weighed it again. The difference in mass was 1.27g . Identify the gas.
Express your answer as a chemical formula.

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1. Use the equation I gave you before for calculating the density of a gas. You have the density given as 1.27 g/L. Calculate molar mass and divide by 2. Post your work if you need additional assistance.

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2. I got C2H4?

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posted by Kara
3. How did you get C2H4? Show your work and I'll try to find the error.

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4. jus give us the damn answer u stupid head!

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5. The answer is N2, but your rude behavior is uncalled for.

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posted by Rebecca

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