Calculate the molar mass of a compound in the Dumas method at `100^(@)C` for which volume of experimental container was 452 ml and the pressure was 745.1 torr. The difference in mass between the empty container and the final measurement was 1.129 gm.
Text Solution
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`n=(PV)/(RT)=(745.1)/(760)xx(452xx10)/(0.0821xx373)=0.01448` mol molar mass (M)`=(1.129)/(0.01448)=78.0` gm/mol
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