Homework 1.2

Homework 1.2 - hydrolysis of sucrose in 0.50 m HCl(aq...

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HOMEWORK 1.2 22.14b   The rate constant for the decomposition of a certain substance is 1.70 × 10 −2  dm 3  mol −1  s −1  at  24°C and 2.01 × 10 −2  dm 3  mol −1  s −1  at 37°C. Evaluate the Arrhenius parameters of the reaction. 22.5  A first-order decomposition reaction is observed to have the following rate constants at the  indicated temperatures. Estimate the activation energy. k/ (10-3 s-1)  2.46 45.1 576 T (oC) 0 20.0 40.0 22.7  Sucrose is readily hydrolyzed to glucose and fructose in acidic solution. The hydrolysis is often  monitored by measuring the angle of rotation of plane-polarized light passing through the solution.  From the angle of rotation the concentration of sucrose can be determined. An experiment on the 
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Unformatted text preview: hydrolysis of sucrose in 0.50 m HCl (aq) produced the following data: Determine the rate constant of the reaction and the half-life of a sucrose molecule. What is the average lifetime of a sucrose molecule? 22.9 The ClO radical decays rapidly by way of the reaction, 2 ClO → Cl 2 + O 2 . The following data have been obtained: Determine the rate constant of the reaction and the half-life of a ClO radical. 23.1a Derive the rate law for the decomposition of ozone in the reaction 2 O 3 (g) → 3 O 2 (g) on the basis of the following proposed mechanism: 23.24...
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This note was uploaded on 05/01/2011 for the course CHEM 345 taught by Professor Cardelino during the Fall '09 term at Spelman.

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