Question: help At a certain temperature this reaction follows second-order kinetics with a rate constant of 1.67M1s1; 2HI(g)H2(g)+I2(g) Suppose a vessel contains HI at a concentration

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At a certain temperature this reaction follows second-order kinetics with a rate constant of 1.67M1s1; 2HI(g)H2(g)+I2(g) Suppose a vessel contains HI at a concentration of 0.500M. Calculate how long it takes for the concentration of HI to decrease to 0.100M. You may assume no other reaction is important. Round your answer to 2 significant digits

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