### 7A.17

Posted:

**Tue Mar 10, 2020 3:56 pm**The question provides a table of values, with which we can work out the rate = k

_{r}[A][B]^{2}[C]^{2}(overall order of 5). When I calculate k_{r}, I get the answer 2.85 L^{4}*mmol^{-4}*s^{-1}. When I calculate the rate with that k, [A] = 3.01 mmol/L, [B] = 1.00 mmol/L, and [C] = 1.15 mmol/L, I get rate = 11.3 mmol*L^{-1}*s^{-1}. However, the answer provided by the book for k_{r}is 2.85 x 10^{12}L^{4}*mmol^{4}*s^{-1}. Where did the 10^{12}come from? How come the units don't work out? The book then says the rate = 1.13 x 10^{-2}mmol*L^{-1}*s^{-1}. What did I do wrong in my calculation?