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Firefox File Edit View History Bookmarks Tools Window Help Mon 3:21 PM Tymor Using first- and second-order integrated rate laws At a certain temperature this reaction follows first-order kinetics with a rate constant of 9.60 s 2H1(g) H2(g) +12 (g) Suppose a vessel contains lll at a concentration of 1.00 M. Calculate how long it takes for the concentration of HI to decrease to 110 % of its intial value. You may assume no other reaction is important Round your answer to 2 significant digits. Check 0

Explanation / Answer

first order reaction

K    = 2.303/t log[A0]/[A]

K   = 9.6s^-1

t    =

K    = 2.303/t log[A0]/[A]

9.6   = 2.303/t log100/11

t        = 2.303*0.9586/9.6

           =0.23sec   = 2.3*10^-1 sec >>>answer

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