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240 solutions

Integrated Rate Law

Q. The gas phase reaction of nitrogen dioxide and carbon monoxide was found experimentally to be second-order with respect to NO2, and zero-order with respect to CO below 25°C. NO2 + CO → NO + CO2 Which one of the following mechanisms is consistent with the observed reaction order NO2 + 2CO → N + 2CO2: fast; N + NO2 → 2NO: slow or NO2 + NO2 → NO3 + NO: fast; NO3 + CO → NO2 + CO2: slow

Solved • Mar 29, 2020

Integrated Rate Law

Q. The dimerization of butadiene, , to form 1,5-cyclooctadiene is a second-order process that occurs when the diene is heated. In an experiment, a sample of 0.0087 mol of C4H6 was heated in a 1.0-L flask. After 660. seconds, 19% of the butadiene had dimerized. Calculate the rate constant for this reaction.

Solved • Mar 25, 2020

Integrated Rate Law

Q. How would the plot of pseudo first order reaction look? Draw an example plot.

Solved • Mar 22, 2020

Integrated Rate Law

Q. The acid-catalyzed decomposition of hydrogen peroxide is a first order reaction. An experiment is run (at 66°C) in which the initial concentration of hydrogen peroxide is 0.110 M. After 254 minutes the concentration of H2O2 remaining is 0.035 M. Overall reaction: 2H2O2 (aq) - > 2H2O (l) + O2 (g) b. what is the half-life at this temperature?

Solved • Mar 22, 2020

Integrated Rate Law

Q. The acid-catalyzed decomposition of hydrogen peroxide is a first order reaction. An experiment is run (at 66°C) in which the initial concentration of hydrogen peroxide is 0.110 M. After 254 minutes the concentration of H2O2 remaining is 0.035 M. Overall reaction: 2H2O2 (aq) - > 2H2O (l) + O2 (g) a. What is the value of the rate constant for this reaction at 66 degrees Celsius?

Solved • Mar 22, 2020

Integrated Rate Law

Q. a. How long will it take for 38.5% of nitrogen dioxide to decompose? b. What is the half-life of the reaction if initial concentration of nitrogen dioxide is 0.500 M.

Solved • Mar 22, 2020

Integrated Rate Law

Q. K1.The first order decomposition of C2H5Cl has a rate constant of 0.0128 min-1 at 425oC. If the initial concentration of the C2H5Cl is 0.35 M, calculate a. The concentration of the C2H5Cl after 15 minutes b. The half life for the reaction c. How long it will take for 80% of the original sample to decompose d. If the rate constant for the same reaction is 0.0170 min-1 at 470oC is what is the energy of activation for the reaction? e. Determine the rate constant at a temperature of 100oC.

Solved • Mar 22, 2020