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Question
S2O82-(aq) + 3 I-(aq) 2 SO42-(aq) + I3-(aq)
(a) The rate law for this reaction is first order in S2O82-(aq) and first order in I-(aq). What is the rate law for this reaction?
Rate = k [S2O82-(aq)] [I-(aq)]
Rate = k [S2O82-(aq)]2 [I-(aq)]
Rate = k [S2O82-(aq)] [I-(aq)]2
Rate = k [S2O82-(aq)]2 [I-(aq)]2
Rate = k [S2O82-(aq)] [I-(aq)]3
Rate = k [S2O82-(aq)]4 [I-(aq)]
(b) If the rate constant for this reaction at a certain temperature is 0.00609, what is the reaction rate when [S2O82-(aq)] = 0.0289 M and [I-(aq)] = 0.0671 M?
Rate = ______ M/s.
(c) What is the reaction rate when the concentration of S2O82-(aq) is doubled, to 0.0578 M while the concentration of I-(aq) is 0.0671 M?
Rate = _______ M/s
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