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Problem Set11

# Problem Set11 - 2400 0.13 3000 0.082 3600 0.050 a Determine...

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CEM 383 – Problem Set 11 Fall 2007 Due in class on Friday, December 7. 1. The following data were obtained for the reaction 2 ClO 2 ( aq ) + 2 OH ( aq ) ClO 3 ( aq ) + ClO 2 ( aq ) + H 2 O ( l ) where rate = d [ ClO 2 ] dt [ClO 2 ] (mol/L) [OH - ] (mol/L) Initial Rate (mol/(L•s)) 0.050 0.100 5.75 x 10 -2 0.100 0.100 2.30 x 10 -1 0.100 0.050 1.15 x 10 -1 a) Determine the rate law. b) Calculate the value of the rate constant. 2. The decomposition of hydrogen peroxide was studied, and the data in the table below were obtained at a particular temperature, where Rate = d [ H 2 O 2 ] dt Time (s) [H 2 O 2 ] (mol/L) 0 1.0 120 0.91 300 0.78 600 0.59 1200 0.37 1800 0.22

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Unformatted text preview: 2400 0.13 3000 0.082 3600 0.050 a) Determine the integrated rate law b) Determine the differential rate law c) Determine the value of the rate constant 3. A certain first order reaction is 45% complete in 65 s. What are the rate constant and half-life of this reaction? 4. The mechanism for the decomposition of hydrogen peroxide is H 2 O 2 → 2 OH H 2 O 2 + OH → H 2 O + HO 2 HO 2 + OH → H 2 O + O 2 Using your results from problem 2, specify which step is the rate-determining step....
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Problem Set11 - 2400 0.13 3000 0.082 3600 0.050 a Determine...

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