Approximations  [ENDORSED]

Moderators: Chem_Mod, Chem_Admin

HanSitoy
Posts: 18
Joined: Fri Sep 29, 2017 7:06 am

Approximations

Postby HanSitoy » Sun Dec 10, 2017 10:47 pm

Just for clarification, every time we use approximations, like in terms of determining pH, we have to justify it right?

Chem_Mod
Posts: 18889
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 716 times

Re: Approximations  [ENDORSED]

Postby Chem_Mod » Mon Dec 11, 2017 10:43 am

Hi, HanSitoy,
If Keq is very small, it is obvious why you are using the approximation (it would still be a good idea to mention it in your solution). However, if it is not very small, you should always justify it by using 5% rule at the end.


Return to “SI Units, Unit Conversions”

Who is online

Users browsing this forum: No registered users and 0 guests