Write the basic form of the rate law for the followingreaction: IO 4 -1 + 8 Br -

Question

Write the basic form of the rate law for the followingreaction:

IO4-1 + 8 Br-1 + 8H+--> I-1 + 4 Br2 + 4H2O

a. If doubling the concentration of periodate ion in thereaction above causes the rate of reaction to quadruple, what isthe order of reaction with respect to periodate ion?


b. A plot of ln(rate) vs. 1/T for the above reactiongave a straight line with a slope of -3650. What is the activationenergy for this reaction?


HELP please..ASAP

Explanation / Answer

Part a. If you double the concentration and the rate quadruple-> Order is 2 (Just for future reference: If concentration double and rate staysthe same: order is 0; and if concentration doubles and rate double:order is 1). b. Slope = -Ea/R -3650 = -Ea / 8.3145 Ea = 30347.9 J or 30.3 KJ

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