090420_Quiz3_answer - Your ame . Quiz 3 Apr 24, 2009 [ /8]...

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1 Your &ame . [ /8] Chem340 Physical Chemistry for Biochemists Quiz 3 Apr 24, 2009 Q1. 0.2 mM sucrose aqueous solution and 0.1 mM sucrose aqueous solution are separated by a membrane that permeable only to water. Which statements are correct for the chemical potential for each compartment and the osmotic pressure? Choose TWO. (a) In the equilibrium state, the pressure of the compartment for the 0.1 mM solution (H2O + sugar) is increased. (b)The osmotic pressure between the two compartments is given by (0.1 mM)RT. (c) H 2 O moves into the 0.1 mM solution component until the system reaches equilibrium. (d) H 2 O moves into the 0.2 mM solution component until the system reaches equilibrium. Q2. Figure 2 right shows vapor pressures of CS 2 (P CS2 ) and acetone (P acetone ) and the total vapor pressure (P total ) for ideal and non-ideal acetone-CS 2 solutions at different x CS2 . Choose TWO correct statements. (a) Linear dotted line for CS 2 denotes vapor pressure following Raoult’s law over all xcs 2 . (b) Curved line for CS 2 denotes a vapor pressure for non-ideal solution that follows Henry’s law over all the xcs
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This note was uploaded on 04/14/2010 for the course CHEM 340 taught by Professor Yoshitakaishii during the Spring '07 term at University of Illinois, Urbana Champaign.

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090420_Quiz3_answer - Your ame . Quiz 3 Apr 24, 2009 [ /8]...

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