%3Cp%3E%3Cspan%20style%3D%22color%3A%26nbsp%3Brgb(51%2C%26nbsp%3B51%2C%26nbsp%3B
ID: 799662 • Letter: #
Question
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A 92 g sample of a liquid is placed in a 25 liter flask at 140 degrees Celsius the liquid evaporates completely to a pressure of .900 atm. What is the molar mass?
PV=nRT (T=140+273=413)
so,
n=0.9*25/8.314/413=6.6*10^-3;
molar mass=92/n=14039.9 g/mol
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