can anyone help out with pH curves??coz they got me! and why does the equivilence point keep changing?
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Chem mod:4 can anyone help? watch
- 30-12-2003 13:07
- 01-01-2004 16:42
There's really not much you need to know about PH curves.
The equilvalence point is the point when the graph is nearly vertical due to the addition of one drop of alkali.
You need to know the general trends of curves:
e.g. strong acid with strong base
strong acid/weak base and vice versa
weak acid and weak base
and then the typical exam question is:
Q. What type of indicator would you use with the following reaction ?
if you memorise around 3 indicators (one for each reaction)...then that's all you need.
I think that should should help ?.....if it's more specific then just post back.
- 02-01-2004 21:31
do OCR candidates need to know this? I havent got it in my notes but its in my OCR textbook which is puzzling me
- 02-01-2004 21:43
no, its on the sylabus for unifying concepts
- 02-01-2004 21:45