Rich S Posted October 23, 2012 Report Posted October 23, 2012 As a retired chemist, I must abide by the alchemist's creed and am required to wish all of you a happy and pleasant Mole Day with many more to come. Rich S Quote
redmond Posted October 23, 2012 Report Posted October 23, 2012 Thank you sir. Avogadro would be pleased. Quote
sanjuro Posted October 23, 2012 Report Posted October 23, 2012 to wish all of you a happy and pleasant Mole Day with many more to come. Would that be moles or days????? :lol: Quote
Rich S Posted October 23, 2012 Author Report Posted October 23, 2012 For those who have forgotten their basic chemistry: >Mole Day is a Nationally unofficially recognized day in celebration of > Avogadro's Law which is one of the corner stones of chemistry > and science. It says that in any pure substance, 1 gram molecular > weight (1 mole) there are 6.02 x 10^23 (10 to the 23rd power) number > of molecules. It is celebrated on Oct. 23rd (10,23) from 6.02 AM > until 6.02 PM. Hence: 6.02x10^23 Avogadro's Number. Rich S Quote
redmond Posted October 23, 2012 Report Posted October 23, 2012 Dr Stein- You must have to be a chemist to appreciate this 'holiday'. I just got home from work at the lab and even there, the biologists and microbiologists didn't have a proper appreciation of its significance. One of the most vivid memories I have of undergraduate chem classes was one where a TA from another country was trying to explain the difference between molarity and molality with a very thick accent: he could not pronounce 'l' or 'r'. We kept him going in circles for 45min... Not very nice, maybe, but we did think it funny. A long time ago... Quote
John A Stuart Posted October 23, 2012 Report Posted October 23, 2012 It could also be Boltzman Day from 1 38 AM t0 1 38 PM. Coming up is Loschmidt Day on the 26 October. Thanks Pete. Quote
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