I just ordered some D2O; it should arrive in a few days, and I'll let you know. On Sep 20, 2005, at 5:54 PM, Steve Gray wrote:
On Tuesday 20 September 2005 20:24, Eugene Salamin wrote:
Some years ago, RWG thought up the clever question: does heavy ice (frozen heavy water) float in ordinary water?
Regular ice's density is 0.914. Heavy ice (D2O) has two extra nucleons on top of 18 (16 for the O, 1 for each H), so it's 20/18 heavier than 0.914, or about 1.016. Therefore it should sink. The site jchemed.chem.wisc.edu/JCESoft/CCA/CCA2/MAIN/ICECUBE/CD2R1.HTM says that D2O ice sinks, confirming this simple reasoning.
Steve Gray
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