Tricky Rate Law Question

[rah08e]

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I know someone just posted a question like this but...

This question asks you to find the order with respect to B:

Initial [A](M) Initial (M) Initial rate of formation of C(mol/L•min)
2.5 x 10–6 3 x 10–4 5 x 10–3
5 x 10–6 3 x 10–4 1 x 10–2
1 x 10–5 9 x 10–4 1.8 x 10–1


If anyone has advice on how to solve the tricky rate law questions involving a hypothetical 4th line, it would be greatly appreciated.

Thanks!

 

[rah08e]

damn.... i spaced the values out nicely but it didnt render properly

 

[RalphMouth]

I think this is the same question I solved in the other thread, can you give an example of the hypothetical 4th line question? Probably would be better able to help

 

[AlbinoPolarBear]

I know someone just posted a question like this but...

This question asks you to find the order with respect to B:

Initial [A](M) Initial (M) Initial rate of formation of C(mol/L•min)
2.5 x 10–6 3 x 10–4 5 x 10–3
5 x 10–6 3 x 10–4 1 x 10–2
1 x 10–5 3 x 10–4 2 x 10–2
1 x 10–5 9 x 10–4 1.8 x 10–1


If anyone has advice on how to solve the tricky rate law questions involving a hypothetical 4th line, it would be greatly appreciated.

Thanks!

rate = k[A]^x^y

from the data, x = 1, as when you double A, you get twice the rate
so, you can say that if you increase [A] from 5X 10-6 to 1X 10-5, the rate will be doubled.

Makes it a lot easier now doesn't it?

So when B triples, the rate increase 9-fold, therefore the order of B 👍 is 2.

 

[rah08e]

rate = k[A]^x^y

from the data, x = 1, as when you double A, you get twice the rate
so, you can say that if you increase [A] from 5X 10-6 to 1X 10-5, the rate will be doubled.

Makes it a lot easier now doesn't it?

So when B triples, the rate increase 9-fold, therefore the order of B 👍 is 2.

lololol wow... thank you for providing a more logical explanation than kaplan. That makes sense.