Question 1 - Question 1 0 out of 1 points > Lysine is an...

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> Lysine is an amino acid that is an essential part of nutrition but which is not synthesized by the human body. What is the molar mass of lysine if 750.0 mL of a solution containing 8.60 g of lysine has an osmotic pressure of 1.918 atm? T = 25.0°C > Selected Answer: 220. g/mol > Correct Answer: 146 g/mol > > > > Question 2 0 out of 1 points > Which of the following sets of conditions could exist when two liquids which are completely miscible in one another are mixed? > Selected Answer: none of the above > Correct Answer: DHsoln » 0, entropy increases > > > > Question 3 0 out of 1 points > Which of the following aqueous liquids will have the lowest freezing point? > Selected Answer: 0.5 m C12H22O11 (sucrose) > Correct Answer: 0.5 m Li3PO4 > > > > Question 4 1 out of 1 points > The sublimation of solid carbon dioxide is a spontaneous process. Predict the sign (+, -, or 0) of DG0rxn , DH0rxn and DS0rxn, respectively. > Selected Answer: -, +, + > Correct Answer: -, +, + > > > > Question 5 0 out of 1 points > Use the given data at 298 K to calculate DG°rxn for the reaction > > 2Cl2(g) + SO2(g) ® SOCl2(g) + Cl2O(g) > > Substance Cl2(g), SO2(g), SOCl2(g), Cl2O(g) > DH° f (kJ/mol) 0, -296.8, -212.5, 80.3 > S°m (J/K×mol) 223.0, 248.1, 309.77, 266.1 > Selected Answer: 133.6 kJ/mol > Correct Answer: 199.8 kJ/mol
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This note was uploaded on 06/18/2008 for the course CHEM 103 taught by Professor Liebird during the Summer '08 term at Grand Rapids Community College.

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Question 1 - Question 1 0 out of 1 points > Lysine is an...

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