Please help!! What is the molar mass of a gas that has a density of 2.62 g/L at 2.00 atm and 25.0 degrees C?
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Answer:
Molar Mass= (Density)(R constant)(Temp)/ (Pressure) so..... MM=(2.62g/L)(.0821L*atm/Mol*K)(25degC+... MM=32g/mol most likely Oxygen you can derive the equation : MM=DRT/P or memorize it is just a form of PV=nRT hope that helps!
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Other answers
Molar Mass= (Density)(R constant)(Temp)/ (Pressure) so..... MM=(2.62g/L)(.0821L*atm/Mol*K)(25degC+… MM=32g/mol most likely Oxygen you can derive the equation : MM=DRT/P or memorize it is just a form of PV=nRT hope that helps!
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