PS4 - BIOAP 458, 2011 Name: Raw Score:_/85 Percentile...

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-1/5- BIOAP 458, 2011 Prof. Beyenbach Name: Raw Score:______/85 PROBLEM SET 4 Osmosis, Goldman- & Gibbs-Donnan equations Percentile Score: (7.5% of final grade) 1) (10 pts) a) (4 pts) Determine the osmotic pressure difference for the initial condition in mOsm and in mmHg. b) (2 pts.) In the right diagram draw the final condition if the barrier separating the two compartments is permeable to water but not to Na + and Cl - . c) (2pts.) How much water has crossed the membrane assuming an initial volume of 1 liter in each compartment? Assume an initial volume of 1 liter in each compartment. d) (2pts.) What pressure must be applied to compartment _____? to prevent osmosis in (a) above?
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-2/5- 2) (3 pts) Draw the direction of osmosis (if any) if the membrane is permeable to water but impermeable to mannitol and impermeable to MgCl 2 . You may assume complete dissociation of MgCl 2 in water. Justify your answer: 3) (6 pts) a) (3 pts) Determine the osmotic pressure of gastric juice (HCl) with a pH of 2.4.
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This note was uploaded on 04/09/2011 for the course BIOAP 4580 taught by Professor Beyenbach,k. during the Spring '11 term at Cornell University (Engineering School).

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PS4 - BIOAP 458, 2011 Name: Raw Score:_/85 Percentile...

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