SUPPL INSTR FOR CH 302 (GE 206E) - answerstoPPIntegratedRateLaws

SUPPL INSTR FOR CH 302 (GE 206E) - answerstoPPIntegratedRateLaws

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Practice Problems: Integrated Rate Laws (13.4-13.6) 1. Determine the rate constant for each of the following first-order reactions, in each case expressed for the rate of loss of A: (a) A B, given that the concentration of A decreases to one-half its initial value in 1000. s; (b) A B, given that the concentration of A decreases from 0.67 mol/L to 0.53 mol/L in 25 s; (c) 2A B + C, given that [A] 0 = 0.153 mol/L and that after 115 s the concentration of B rises to 0.034 mol/L 2. Dinitrogen pentoxide decomposes by first-order kinetics with a rate constant of 3.7 x 10 -5 s -1 at 298 K. (a) What is the half-life (in hours) for the decomposition of N 2 O 5 at 298 K? (b) If [N 2 O 5 ] 0 = 0.0567 mol/L, what will be the concentration of N 2 O 5 after 3.5 hours? (c) How much time (in minutes) will elapse before the N 2 O 5 concentration decreases from 0.0567 mol/L to 0.0135 mol/L? 3. Determine the time required for each of the following second-order reactions to take place: (a) 2A B + C, for the concentration of A to decrease from 0.10 mol/L to
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This note was uploaded on 09/28/2009 for the course GE 206E taught by Professor staff during the Spring '09 term at University of Texas at Austin.

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SUPPL INSTR FOR CH 302 (GE 206E) - answerstoPPIntegratedRateLaws

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