Fall 05. Exam3-2

Fall 05. Exam3-2 - Ca(IO 3 ) 2(s) Ca 2+ + 2IO 3-K sp = 7.1...

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2) (6 points) a) How does reducing the size of the stationary phase particles affect the number of theoretical plates in HPLC? Why does this occur? b) What effect does changing the mobile phase from H 2 O to methanol have on the retention times of peaks separated using reversed phase HPLC? Explain why this occurs. Page 3 of 8
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3) (5 Points) Describe what a Photomultiplier Tube is, how it works and what it is used for. Page 4 of 8
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5) (7 points) Consider the following equilibria:
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Unformatted text preview: Ca(IO 3 ) 2(s) Ca 2+ + 2IO 3-K sp = 7.1 x 10-7 IO 3-+ H 2 O HIO 3 (aq) + OH-K b = 5.8 x 10-14 a) Write the Charge Balance Equation for the above system. b) Write the Mass Balance Equation. c) Write the Equilibrium Equations for all of the relevant equilibria. There are three. Page 6 of 8 6) (8 points) Define the following terms: a) Stimulated Emission b) Genomics c) Mobile Phase d) Phosphorescence Page 7 of 8...
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This note was uploaded on 10/02/2011 for the course CHEM 2101 taught by Professor Bulman during the Spring '11 term at Minnesota.

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Fall 05. Exam3-2 - Ca(IO 3 ) 2(s) Ca 2+ + 2IO 3-K sp = 7.1...

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