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Results tagged with water
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user 389
For questions relating to water (H₂O), specifically its structure, properties, and uses in chemistry. For questions not about water but rather about solutions in water, use tags [aqueous-solution] or [solubility] instead.
4
votes
Where do the bubbles in a glass of water come from?
I've always assumed that the bubbles formed because they're coming out of solution after the water pressure drops. … Suggested experiment: take such a glass of water after it's been standing a few days, and pour the water into a new glass. See if new bubbles form. …
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2
votes
Is there a simple field test for heavy water?
The index of refraction of heavy water is 1.328, that of light water is 1.333. Not much, but maybe just enough to see the inhomogeneities. … If the decanted glass's contents sink, it had the heavy water. Otherwise, light water. …
- 685
9
votes
2
answers
625
views
Do light and heavy water form an azeotrope?
(Interested in the general principle too, not just for water and its variants, but with particular emphasis on it.) … When you distill a weak ethanol-in-water solution, you get a condensate that's ethanol-enriched, but that only takes you asymptotically up to 95%, because ethanol and water form an azeotrope with that …
- 685