14.47 a


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Emily Duggan 1F
Posts: 42
Joined: Fri Sep 29, 2017 7:07 am

14.47 a

Postby Emily Duggan 1F » Tue Feb 20, 2018 4:40 pm

Hi I understand how ln Q = (about) 15, but how does that mean Q = 10^6?

Cam Bear 2F
Posts: 60
Joined: Thu Jul 27, 2017 3:01 am

Re: 14.47 a

Postby Cam Bear 2F » Tue Feb 20, 2018 7:16 pm

Yeah, I am stuck on this too. Maybe it's a typo? I can't seem to figure out how they would get 10^6.

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

Re: 14.47 a

Postby Ammarah 2H » Tue Feb 20, 2018 7:20 pm

I was stuck too and I keep getting 2649813.982. Is that what you’re getting as well?

McKenna disc 1C
Posts: 60
Joined: Fri Sep 29, 2017 7:04 am

Re: 14.47 a

Postby McKenna disc 1C » Wed Feb 21, 2018 4:31 pm

Ammarah 2H wrote:I was stuck too and I keep getting 2649813.982. Is that what you’re getting as well?


The value you're writing here is 2.65 x 10^6, I don't know if that clarifies anything because the problem isn't written here and I don't have my book in front of me so I'm coming at this out of context haha but I hope that helps a little?

Justin Chu 1G
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Joined: Thu Jul 13, 2017 3:00 am
Been upvoted: 1 time

Re: 14.47 a

Postby Justin Chu 1G » Wed Feb 21, 2018 10:37 pm

You get the right answer if you use the logQ equation instead of the lnQ equation but I have no idea why it would matter either way.

Virpal Gill 1B
Posts: 32
Joined: Thu Jul 27, 2017 3:00 am

Re: 14.47 a

Postby Virpal Gill 1B » Wed Feb 21, 2018 11:19 pm

Ammarah 2H wrote:I was stuck too and I keep getting 2649813.982. Is that what you’re getting as well?

Yeah I'm getting the same answer.

McKenna disc 1C
Posts: 60
Joined: Fri Sep 29, 2017 7:04 am

Re: 14.47 a

Postby McKenna disc 1C » Thu Feb 22, 2018 1:23 pm

Justin Chu 1G wrote:You get the right answer if you use the logQ equation instead of the lnQ equation but I have no idea why it would matter either way.


Yeah I'm kind of confused about why exactly we'd need to use one equation rather than the other? The only guess I have is like if we're finding hydrogen ion concentration or something like that?


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