The iodide ion reacts with hypochlorite ion (the active ingredient in chlorine bleaches) in the following way: ocr + 1 or + ar. This rapid reaction gives the following rate data: [Oci] (M) 1 (M) Initial Rate (M/s) 1.5 x 10 1.5 x 10-3 1.5 x 10-3 1.36 X 10- 2.72 x 10 2.72 x 10 3.0 x 10 1.5 x 103 3.0 x 103 Your answer Calculate the rate constant with units. Your answer

The iodide ion reacts with hypochlorite ion (the active ingredient in chlorine bleaches) in the following way: ocr + 1 or + ar. This rapid reaction gives the following rate data: [Oci] (M) 1 (M) Initial Rate (M/s) 1.5 x 10 1.5 x 10-3 1.5 x 10-3 1.36 X 10- 2.72 x 10 2.72 x 10 3.0 x 10 1.5 x 103 3.0 x 103 Your answer Calculate the rate constant with units. Your answer

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter12: Chemical Kinetics

Section: Chapter Questions

Problem 102CWP: The thiosulfate ion (S2O32) is oxidized by iodine as follows: 2S2O32(aq)+I2(aq)S4O62(aq)+2I(aq) In a...

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The rate of the decomposition of hydrogen peroxide, H2O2, depends on the concentration of iodide ion present. The rate of decomposition was measured at constant temperature and pressure for various concentrations of H2O2and of KI. The data appear below. Determine the order of reaction for each substance, write the rate law, and evaluate the rate constant. Rate [H2OJ [Kll (mL min-’) (mol L ’) (mol L ’) 0.090 0.15 0.033 0.178 0.30 0.033 0.184 0.15 0.066
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A study of the rate of the reaction represented as 2AB gave the following data: Time (s) 0.0 5.0 10.0 15.0 20.0 25.0 35.0 [A](M) 1.00 0.775 0.625 0.465 0.350 0.205 0.230 (a) Determine the average rate of disappearance of A between 0.0 s and 10.0 s, and between 10.0 s and 20.0 s. (b) Estimate the instantaneous rate of disappearance of A at 15.0 s from a graph of time versus [A]. What are theunits of this rate? (c) Use the rates found in parts (a) and (b) to determine the average rate of formation of B between 0.00 s and 10.0 s, and the instantaneous rate of formation of B at 15.0 s.
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At 573 K, gaseous NO2(g) decomposes, forming NO(g) and O2(g). If a vessel containing NO2(g) has an initial concentration of 1.9 102 mol/L, how long will it take for 75% of the NO2(g) to decompose? The decomposition of NO2(g) is second-order in the reactant and the rate constant for this reaction, at 573 K, is 1.1 L/mol s.
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11.51 Peroxyacetyl nitrate (PAN) has the chemical formula CtHjNOj and is an important lung irritant in photochemical smog. An experiment to determine the decomposition kinetics of PAN gave the data below. Determine the order of reaction and calculate the rate constant for the decomposition of PAN. Time, t (min) Partial Pressure of PAN (torr) 0.0 2.00 X 10~’ 10.0 1.61 X 10~} 20.0 1.30 X 10_J 30.0 1.04 X 10"’ 40.0 8.41 X 10-4 50.0 6.77 x 10-4 60.0 5.45 X 10-4
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