Group 7: Halogens
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I am doing my chemistry investigation to find out the concentration of Cl- in unknown solution. I have read in Fajan's method that the NaCl should be dried in 100oC for an hour? Is that really necessary if I have already a dried NaCl. I don't really get the end point of my investigation. Please help.
210208
Corrie writes ......
Are you sure you don't mean drying the silver nitrate, not the sodium chloride?
Here is a web link to a description of this experiment which mentions drying the silver nitrate and also discusses the end-point of the titration:
http://classes.uleth.ca/200103/chem24102/Expt4.pdf
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updated: 21 February 2008
