A sample of gas has a mass of 0.827 g. Its volume is 0.270 L at a temperature of 361 K and a pressure of 1.28 atm. Find its molar mass in the units of g/mol to 3 sig figs.
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pV=mR/M; M=mRT/pV
M=0.827g*8.314J/Mol*ᵒK*361ᵒK/129989.309Pa*0.00027m³=70.72g/Mol
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