Rounding within the Problem

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Olivia L 4E
Posts: 59
Joined: Fri Sep 28, 2018 12:23 am
Been upvoted: 1 time

Rounding within the Problem

Postby Olivia L 4E » Tue Jan 22, 2019 11:57 am

In the 6D section of 7th edition book, for calculating pKa/pKb and Ka/Kb, I didn't round until the end and got a number close to what the answer was. I tried it again by rounding after every calculation then got the answer the book indicated. The book has been incorrect time and time again in regard to significant figures but I wasn't sure if that is how you are supposed to do it with pKa problems or not. Do I round at the end or all throughout?

Camille Marangi 2E
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: Rounding within the Problem

Postby Camille Marangi 2E » Tue Jan 22, 2019 12:31 pm

As far as from what TA's and Lavelle himself have told us we are supposed to wait until all calculations have been completed to round so we have the most accurate answer.

riddhiduggal
Posts: 30
Joined: Fri Sep 28, 2018 12:21 am

Re: Rounding within the Problem

Postby riddhiduggal » Tue Jan 22, 2019 2:40 pm

I think we round at the end, and use exact numbers till then.


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