Data

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Ghadir Seder 1G
Posts: 134
Joined: Sat Sep 14, 2019 12:17 am

Data

Postby Ghadir Seder 1G » Sat Mar 14, 2020 9:19 pm

When we're given experimental data to determine rate laws, how do you know which rate goes in which order of the fraction? For example, how do I know if its rate2/rate1 or rate1/rate2?

vpena_1I
Posts: 109
Joined: Sat Aug 24, 2019 12:15 am

Re: Data

Postby vpena_1I » Sat Mar 14, 2020 9:20 pm

Bigger concentration over smaller concentration.

Vincent Leong 2B
Posts: 207
Joined: Fri Aug 09, 2019 12:15 am

Re: Data

Postby Vincent Leong 2B » Sat Mar 14, 2020 9:20 pm

it doesnt matter which order you do, as long as you can isolate an exponent x or y to get the respective rxn order. The numbers of one of the reactants in both trials should cancel out.

vpena_1I
Posts: 109
Joined: Sat Aug 24, 2019 12:15 am

Re: Data

Postby vpena_1I » Sat Mar 14, 2020 9:42 pm

It's usually easier to do bigger concentration over smaller concentration, but yeah, either way will get you to the same answer.

SMIYAZAKI_1B
Posts: 63
Joined: Sat Aug 24, 2019 12:15 am

Re: Data

Postby SMIYAZAKI_1B » Sat Mar 14, 2020 10:02 pm

As may says, it does not matter which order you should do to calculate the order of the reaction; however, you probably should place the half-reaction with higher values to be on the top to make sure that you are given with number bigger than 1 which is easier to deal with.

905373636
Posts: 62
Joined: Thu Aug 01, 2019 12:15 am

Re: Data

Postby 905373636 » Sat Mar 14, 2020 10:06 pm

Vincent Leong 2B wrote:it doesnt matter which order you do, as long as you can isolate an exponent x or y to get the respective rxn order. The numbers of one of the reactants in both trials should cancel out.


So, as long as the variable placements are consistent it doesn't matter, right? Or is the placement not a factor at all?


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