5. Consider the reaction that occurs when CIO, sol (OH) are mixed, as shown in t

Question

5. Consider the reaction that occurs when CIO, sol (OH) are mixed, as shown in the following equation; 2CIO2(aq) + 20H (aq) Cio,(aq) + cio2 (aq) + H2O(1) ution and a solution containing hydroxide ions Initial Rate Ms1 2.33 x 10 9.34 x 10 1.87x10 Ex 1.25 × 102 2.50 x 102 2.50 x 102 1.3 x 10-3 1.3 x 103 2.60x10 2 a) Write the rate equation for the reaction @ 7pts b) Calculate the rate constant @ 7pts c) Calculate the reaction rate for the reaction when (C02]) 8.25 x 10 M and |-oH) - 5.35 x 10 M @ 7pts

Explanation / Answer

with respect to ClO2 reaction is second order

with respect to OH- first order.

so rate law as follows

a) rate = K [ClO2]2 [OH-]

b) K = rate / [ClO2]2[OH-]

K = 2.33 x 10-4 / [1.25 x 10-2]2 [1.3 x 10-3]

K = 2.33 x 10-4 / 2.03 x 10-7

K = 1.15 x 103 M-2s-1

c) rate = 1.15 x 103 [8.25 x 10-3]2 [5.35 x 10-2]

rate = 4.19 x 10-3 M/s

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