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Original Question
A 2.00L flask is filled with propane gas(C3H8)at 1.00atm and 15C. What is the mass of propane in the flask?Asked by Madeline rose
A 1.87-L flask is filled with propane gas (C3H8), at 1.00 atm and -22.1°C. What is the mass of the propane in the flask?
Answers
Answered by
DrBob222
Use PV = nRT
P = 1 atm
V = 1.87 L
n = mols. Solve for this
R = 0.08206 L*atm/mol*K
T = you want Kelvin. That is K = 273.2 + (-22.1) = ?
That gives n = mols. Then
mol = grams/molar mass. You have mols and molar mass, solve for grams.
Post your work if you get stuck.
P = 1 atm
V = 1.87 L
n = mols. Solve for this
R = 0.08206 L*atm/mol*K
T = you want Kelvin. That is K = 273.2 + (-22.1) = ?
That gives n = mols. Then
mol = grams/molar mass. You have mols and molar mass, solve for grams.
Post your work if you get stuck.