weheartit Posted January 27, 2015 Report Share Posted January 27, 2015 So... chemistry IA... i was wondering what is the uncertainty of pH meter? I know we may use different ones and so on and so forth but I just want to see if +/- 0.02 seems reasonable? Reply Link to post Share on other sites More sharing options...
Esteban Posted January 29, 2015 Report Share Posted January 29, 2015 (edited) For a Vernier pH probe the uncertainty is +- 0.2 pH units. Unless the pH meter was more expensive +/- 0.2 pH units is acceptable. I have not heard of a Ph meter that was accurate to the hundredths place so I would strongly advise against such an uncertainty. Edited January 29, 2015 by Esteban Reply Link to post Share on other sites More sharing options...
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