19 Question (2 points) e See page 646 Chlorine dioxide (CIO2) is a disinfectant

Question

19 Question (2 points) e See page 646 Chlorine dioxide (CIO2) is a disinfectant used in municipal water-treatment plants. It dissolves in basic solution, producing CIO3-and CIO2 2CIO2 (g)-2OH-(ag)- ClO-(aq) + CIO2 (aq) + H20(1) The following kinetic data were obtained at 350 K for the reaction: Experiment [CIO2(g)lo (M) OH(aq)lo (M) Initial Rate (M/s) 0.0600 0.0200 0.0200 0.0300 0.0300 0.0900 0.277 0.0926 0.271 2 3 1st attempt Part 1 (1 point) See Periodic Table See Hint Choose the correct rate law for the reaction Choose one: Rate Cio, LOH Rate k CIO Rate -k Cio, LOH Rate = k | Clo, 121 OH

Explanation / Answer

with respect to [Cl2O] reaction is first order.

with respect to [OH-] reaction is first order

rate law as follows

rate = K [Cl2O] [OH-]

K = rate / [Cl2O] [OH-]

K = 0.277 / [0.0600][0.0300]

K = 0.277 / 0.0018

K = 153.9 M-2 s-1

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