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Ethan-Van To Dis2L
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Joined: Fri Sep 29, 2017 7:05 am


Postby Ethan-Van To Dis2L » Wed Mar 07, 2018 12:01 am

So I found the k value (0.02357), and used the integrated rate law for second order reactions, but my answer was 757.6 second but the answer was 7.4 x 10^2. Would this just be a rounding error on my part, or is the book wrong?

Jared Smith 1E
Posts: 51
Joined: Fri Sep 29, 2017 7:04 am

Re: 15.35a

Postby Jared Smith 1E » Wed Mar 07, 2018 12:05 am

I did the same thing and recalculated it with 0.02357 rounded to 0.024 like it does in the answer key, and it gives 744. I think it's just a rounding error on our part.

Jack Papciak 2F
Posts: 31
Joined: Fri Sep 29, 2017 7:06 am

Re: 15.35a

Postby Jack Papciak 2F » Wed Mar 07, 2018 12:08 am

The book rounded the k value to 0.024L/molxs so that's why it's a slightly different answer.

Alejandra Rios 1L
Posts: 31
Joined: Fri Sep 29, 2017 7:06 am
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Re: 15.35a

Postby Alejandra Rios 1L » Thu Mar 08, 2018 5:49 pm

This should be a rounding error, if you were to use 0.024 as the k value you would get 744.05 as your final answer which is equivalent to 7.4 x 10^2, however if you were to leave the whole decimal, this would give you a value of 757.62. I think both answers would be correct as long as you provided the work.

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