Approximation

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Sam McNeill 1E
Posts: 110
Joined: Sat Aug 24, 2019 12:17 am

Approximation

Postby Sam McNeill 1E » Tue Jan 21, 2020 10:29 am

For approximating the value of x, does K have to be smaller than 10^-3 or can it also be equal to 10^-3

Veronica_Lubera_2A
Posts: 106
Joined: Sat Sep 14, 2019 12:16 am
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Re: Approximation

Postby Veronica_Lubera_2A » Tue Jan 21, 2020 10:46 am

It has to be less than so anything 10^-4 and smaller.

Daniel Toscano 1L
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Joined: Tue Nov 13, 2018 12:18 am

Re: Approximation

Postby Daniel Toscano 1L » Tue Jan 21, 2020 10:47 am

I believe smaller than 10^-3

Kate Swertfager
Posts: 50
Joined: Wed Sep 18, 2019 12:17 am

Re: Approximation

Postby Kate Swertfager » Tue Jan 21, 2020 11:11 am

It has to be smaller. Also check once you have your x value to make sure its less than 5% of the initial concentration,if it is then its a good approximation.

Kaylee Clarke 1G
Posts: 103
Joined: Fri Aug 30, 2019 12:15 am

Re: Approximation

Postby Kaylee Clarke 1G » Tue Jan 21, 2020 11:19 am

Anything equal to or less than 10^-3 is considered by Lavelle as small.

Jessica Katzman 4F
Posts: 35
Joined: Mon Jun 17, 2019 7:24 am

Re: Approximation

Postby Jessica Katzman 4F » Tue Jan 21, 2020 1:26 pm

I think it can also be equal to 10^-3

Vicki Liu 2L
Posts: 101
Joined: Sat Aug 24, 2019 12:15 am

Re: Approximation

Postby Vicki Liu 2L » Tue Jan 21, 2020 3:09 pm

The logic behind this is that if K is sufficiently small, then very little of the species dissociates. Thus, the concentration is essentially unchanged.


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