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For a 20% citrate solution, does direct pH measurement with a pH meter give accurate results, or does such a solution require some other means of pH measurement? 2601:646:8A00:A0B3:940E:B215:E6AD:437C ( talk) 03:59, 9 January 2019 (UTC)
Does anyone have access to a print copy of the 2004 edition of the Hutchinson Dictionary of Scientific Biography, OCLC 56115168? When it's cited in Pappus of Alexandria, it refers to him living c. AD 200-350, while the online edition to which I have access puts him c. AD 300-350. This could have any of the following explanations:
Given the possibility of #3, I don't want to change it without consulting the printed source: thus this request. Thank you. Nyttend ( talk) 04:32, 9 January 2019 (UTC)
Science desk | ||
---|---|---|
< January 8 | << Dec | January | Feb >> | January 10 > |
Welcome to the Wikipedia Science Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
For a 20% citrate solution, does direct pH measurement with a pH meter give accurate results, or does such a solution require some other means of pH measurement? 2601:646:8A00:A0B3:940E:B215:E6AD:437C ( talk) 03:59, 9 January 2019 (UTC)
Does anyone have access to a print copy of the 2004 edition of the Hutchinson Dictionary of Scientific Biography, OCLC 56115168? When it's cited in Pappus of Alexandria, it refers to him living c. AD 200-350, while the online edition to which I have access puts him c. AD 300-350. This could have any of the following explanations:
Given the possibility of #3, I don't want to change it without consulting the printed source: thus this request. Thank you. Nyttend ( talk) 04:32, 9 January 2019 (UTC)