Dividing rate laws

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Gavin Kellerman 1D
Posts: 17
Joined: Sat Jul 09, 2016 3:00 am

Dividing rate laws

Postby Gavin Kellerman 1D » Tue Mar 06, 2018 9:43 pm

When solving for the order of reactants in a reaction by using ratios of rate laws from different experiments, does it matter which experiment is divided by which? For example if experiment 1 has a rate of 2 and initial concentrations A and B of 10 and 20 while experiment 2 has a rate of 4 with initial concentrations of 10 and 40 and I want to solve for the order of B, would it matter whether I divide experiment 1 by experiment 2 or experiment 2 by experiment 1?

Ammarah 2H
Posts: 30
Joined: Fri Sep 29, 2017 7:06 am

Re: Dividing rate laws

Postby Ammarah 2H » Tue Mar 06, 2018 9:48 pm

It's easier to solve if the bigger values are on top! It shouldn't matter but it is easier to see relationships if the bigger numbers are on the top. So in this case, it would be easier to do experiment 2 divided by experiment 1 since 40 is greater than 20 and 4 is greater than 2!

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