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A gas mixture of nonane and sulfur trioxide with a total mass of 2.3 kg is...

A gas mixture of nonane and sulfur trioxide with a total mass of 2.3 kg is placed inside a batch vessel at 31.8 atm and 133°C such that the mixture has a volume of 552.1 L(STP). Determine the moles of the mixture in the vessel, the average molecular weight, and the composition as mole percentage. Then choose the best answer below.

a) the average MW of mixture is 93.4 lbm /lb-mol

b) the total moles of mixture is 29.56

c) the mol% of nonane is 27.9

d) Two choices, A and C, are correct

e) None of the A-B-C choices are correct

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