Fluorocarbons (compounds that contain both carbon and fluorine) were, until recently
Chapter 13, Problem 13.104(choose chapter or problem)
Fluorocarbons (compounds that contain both carbon and fluorine) were, until recently, used as refrigerants. The compounds listed in the following table are all gases at 25 oc, and their solubilities in water at 25 oc and 1 atm fluorocarbon pressure are given as mass percentages. (a) For each fluorocarbon, calculate the molality of a saturated solution. (b) Explain why the molarity of each of the solutions should be very close numerically to the molality. (c) Based on their molecular structures, account for the differences in solubility of the four fluorocarbons. (d) Calculate the Henry's law constant at 25 oc for CHCIF;u and compare its magnitude to that for N2 (6.8 X 10- 4 moi/L-atm). Can you account for the difference in magnitude? Fluorocarbon CF4 CCIF3 CCI2F2 CHCIF2 Solubility (mass %) 0.0015 0.009 0.028 0.30
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