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Chapters 12 & 13 from the principals of generaly chem by silberburg Material Type: Exam; Professor: Cooper; Class: PRINCIPLES OF CHEMISTRY; Subject: Chemistry and Biochemistry; University: Old Dominion University; Term: Spring 2009;
Typology: Exams
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(students honor pledge signature) Constants You May Need Cwater vapor = 33 J/(mol C) Cice = 38 J/(mol C) Cliquid water = 75 J/(mol C) TFP(water) = 0C at 1 atm TBP(water) = 100C at 1 atm 760 torr = 1 atm Hvaporization (water) = 41 kJ/mol Hfusion (water) =6 kJ/mol MWdiethylether = 74 g/mol MWethanol = 46 g/mol MW(water) = 18 g/mol AWbarium = 137 g/mol Kb (water) = 0.5 C/m Kf (water) = 1.9 C/m Select the best answer and mark clearly on opscan. Hand in scan sheet, test, and all work. Each question is worth 5 points.
a) exothermic b) endothermic c) the liquid temperature remains the same d) b and c e) none