MT SOL Posted March 3, 2012 Report Share Posted March 3, 2012 How does one go about expressing the uncertainty of a dimensionless unit? For Example, pH:Do I just say the water has a pH of 7, +/- 1? Or is there a unit needed after the 1? Reply Link to post Share on other sites More sharing options...
Sandwich Posted March 3, 2012 Report Share Posted March 3, 2012 pH IS the unit in a strange and warped way. So yeah pH 7 +/- 1 (if that is indeed the level of sensitivity of your equipment). Reply Link to post Share on other sites More sharing options...
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