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February 20th, 2018, 10:50 AM   #1
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Question Finding rate expression

What is the rate expression of the following formula
ClO2(g) + 2OH(aq) → ClO3(aq) + H2O(g)
I know how to find the rate expression of elementary reaction but I think this might not be an elementary reaction
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February 20th, 2018, 11:54 AM   #2
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Quote:
Originally Posted by Marva View Post
What is the rate expression of the following formula
ClO2(g) + 2OH(aq) → ClO3(aq) + H2O(g)
I know how to find the rate expression of elementary reaction but I think this might not be an elementary reaction
Well it kind of depends upon how much you want to dissolve.

The solubility of chlorine dioxide is 8g/L so as long as you keep below this limit you can expect the reaction to work as you have written it ie far over to the right.

So are you after the theoretical rate equation for this or the equilibrium constant for the solubility? ie the solubility constant.

If the latter the reverse reaction will need to be taken into account as well, making it more complicated as you say.
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