a value

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Rebecca Doan 2L
Posts: 51
Joined: Thu Jul 27, 2017 3:01 am

a value

Postby Rebecca Doan 2L » Sun Mar 04, 2018 9:55 pm

I am still confused how to determine/calculate the a value of a reaction. can someone please explain this to me?

Max Mazo 2C
Posts: 30
Joined: Fri Sep 29, 2017 7:06 am

Re: a value

Postby Max Mazo 2C » Sun Mar 04, 2018 10:02 pm

Are you talking about a as in - ? That a would be the molar coefficient of reactant A.

Anna Li 2E
Posts: 21
Joined: Sat Jul 22, 2017 3:00 am

Re: a value

Postby Anna Li 2E » Sun Mar 04, 2018 10:28 pm

Going with what Max said, an example of this would be for the balanced equation 2H2+O2 --> 2H2O the 'a' value for for hydrogen for this example would be 2.

Sophie Krylova 2J
Posts: 59
Joined: Fri Sep 29, 2017 7:06 am

Re: a value

Postby Sophie Krylova 2J » Sun Mar 04, 2018 10:37 pm

In the context of a problem if you're, for instance, given the rate, and d[]/dt of reactant/product X and at least one other d[]/dt and asked to find a in aX, you can multiply d[]/dt by its coefficient and then divide by d[]/dt of X to find a. (But that's an unlikely scenario)

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