Iodine Clock- rate of reaction question? [Chemistry]

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Category:
Chemistry
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Question description

I have 10ml of a mix of 0.09614M of Na2S2O3 and 0.0722M of KI, add 2mL of starch and 5mL of 2M H2SO4.

I added 5mL of 9.79M H2O2 and it took 2.9sec, then I did another test of 3mL- which got 3.8sec. And 2.5mL- 4.6sec. 1.5ml- 6.2sec. 1ml- 9.8sec. And 0.5ml- 17sec.

How do I find the rate of reaction in terms of molL/sec?

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