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A 11.9-g sample of a gas has a volume of 5.25L at 30 degrees celsius and 762mm Hg. If 2.4g of the same gas is added to this con...Asked by Jen
A 10.8g sample of a gas has a volume of 5.25L at 25 degrees Celsius and 766mmHg.
If 2.3g of the same gas is added to this constant 5.25L volume and the temperature raised to 68 degrees Celsius, what is the new gas pressure?
If 2.3g of the same gas is added to this constant 5.25L volume and the temperature raised to 68 degrees Celsius, what is the new gas pressure?
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Answered by
DrBob222
Use PV = nRT and solve for n (from the first 10.8 g sample). Then
moles = n = grams/molar mass.
You know N and g, solve for molar mass.
Then convert 2.3 g to moles (moles = grams/molar mass), add to moles at the beginning, and use PV = nRT again to solve for P.
moles = n = grams/molar mass.
You know N and g, solve for molar mass.
Then convert 2.3 g to moles (moles = grams/molar mass), add to moles at the beginning, and use PV = nRT again to solve for P.