I am doing a investigation about electrical conductivity of acids and alkalis and the change in conductivity during neutralisation. I want to know what calculations can I do in my analysis???
I have no idea and i desparately need some help!!! I need to be a bit careful in answering questions about coursework becaus eof the rules about help. However, I can give some general help. The main thing with conductimtric titrations is that pure water has a very low ability to conduct electricity because it has very few ions present. Acids and alkalis have a much better conductivity because they ahve lots of ions present.
So you could plot a graph of the conductivity against the volume of acid added and find wher there is a kink in the graph to show the end point. Which board are you studying for? This does not appear on the spec with whcih I am familiar so I will need to check some details to make sure that I am giving good advice.
As I said, I will check and get back to you. Long term coursework usually comes with some briefing notes etc so have another chack through that, if you have it. Thanks for your help! The conductivity meter that I used only said mS as the unit so which is right? I am on OCR salters for chemistry,and I chose this investigation myself becasue I thought it would be interesting,but it turns out quite confusing. I am currently doing the analysis for a [strong acid weak alkali] and a [weak acid strong alkali]conductimetric titration, can you give me some hints?
I have just dug out my university chemistry textbook Physical Chemistry written by Peter Atkins, in case you want to reference it. I will paraphrase some bits of his book. This is done in a conductivity cell.
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