At a certain temperature the rate of this reaction is second order in HI with a rate constant of 0.22MS 2HI (g) → H₂(g) + 1₂ (g) Suppose a vessel contains HI at a concentration of 0.910M. Calculate how long it takes for the concentration of HI to decrease to 0.064 M. You may assume no other reaction is important. Round your answer to 2 significant digits. 0s X 3

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