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15.19 part a

Posted: Sat Mar 03, 2018 3:03 pm
by Paula Dowdell 1F
Hi! Can someone explain to me how they determined that [B] is second order?
I determined [A] by solving as I have previously seen: 1.25^a/2.5 = 8.7/17/4 => 0.5^a=0.5 (first order)

Re: 15.19 part a

Posted: Sat Mar 03, 2018 3:27 pm
by Alvin Tran 2E
To find the order of [B] you want to compare reaction 1 and 3 because the concentrations of A and C stay the same.
So we have
5.84 = 2.416M
Solve for M and you get 2.
So B is second order.