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Re: CO2 tables

Paul Sears wrote:

> I would point out that the 20% difference in the factors given
> at the beginning can be compensated for by a change of only 0.09 in the
> number used for the pKa, or an error of 0.09 in the pH measurement! 

> Can you read your pH that well?  I could if I took a pH meter
> home from work.  Do I care that much?  No.  Do I trust my KH measurement
> to 20%?  Maybe.

These are all real good reasons to not get very upset by the difference.  But 
just the same, the 20% difference is a systematic error and the other factors 
are hopefully not systematic.  We should correct systematic problems.

Roger Miller