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here's the problem :

A 60 gal tank contain pure Azote at 36,2 psig and 24,2 °C. We add 908,25 g of freon (CF2Cl2) that evaporate completely. If the temperature of the tank is 8,2 °C :

a) What is the molar fraction of the freon.

I've made some calculation, but it always result that I need the volume of the Azote to continue.

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# Homework Help: Molar fraction !

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