[bitbot]

Very new to this forum, so I apologize in advance if I posted this topic in the wrong section. I am in High School right now so I thought it would be rational to post this in the High School questions section.

In regards to my topic, I was wondering what the most effective (i.e. most accurate) methods are for determining the concentration of a known solution.

In my specific case, I need to determine the concentration of a KNO₃(aq) within 10% of the actual value. As of now, I have written up two separate procedures to determine the concentration of the solution. The first one utilizes the direct proportionality of solution concentration and conductivity. The other is a titration with the KNO₃(aq) being put through an ion exchange column.

I don't really have any ideas on other methods (besides evaporating the solution) so I'm just asking if there are better methods for this lab.

[Hunter2]

Both are not specific. conductivity can mean every ion and the ironexchange can also exchange every ions.

I think there are organic dermination methodes available.

http://www.jbc.org/content/86/1/189.full.pdf