the molar mass of a newly synthesized jluorocarbon was measured in a gas microbalance, This device consists of a gkass bulb forming one end of a beam, the whole surrouned by a closed container. The beam is pivoted and the balance point is attained by raising the pressure of gais in the container, so increasing the buoyancy of the enclosed bulb. In one experiment, the balance point was reached when the fluorocarbon lpressure was 327.22 torr; for the same setting of the pivot a balance was reached when CHF3 (MM = 70.014g) was introduced at 423.22 torr. A repeat exlperiment with a different setting of the pivot required a pressure of 293.22 torr of the fluorocarbon and 427.22 torr of the CHF3. What is the molar mass of the fluorocarbon? Suggest a molecular formula.
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