Some small amount of the ethane will also dissolve in the water. The amount is determined by Henry's law. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.
Create a free Team What is Teams? Learn more. Ask Question. Asked 5 years, 3 months ago. Active 5 years, 3 months ago. Viewed 2k times. How about 2 water molecules? Improve this question. Nova Nova 1, 2 2 gold badges 25 25 silver badges 41 41 bronze badges. Add a comment.
Active Oldest Votes. Improve this answer. Ben Welborn Ben Welborn 1, 7 7 silver badges 12 12 bronze badges. Then if you add a single water molecule above that limit it would probably float to the top. However, once enough molecules are added around 6 I think to create a solvation shell around a single water molecule, then the density of that 7H2O complex would be higher than hexane and sink to the bottom.
And again, they would all float due to surface tension Then they would be dissolved; then the hexane would force a bunch of the other molecules out of solution But my argument still stands for what happens once the supersaturated point is reached. Any addition molecules would begin to float up until enough amalgamate to create a sphere of hydration that would then sink.
They are dissolved throughout the solution. At supersaturation, they would continue to be dissolved in solution. Adding one more would cause a cascade of many water molecules to condense and precipitate. This is the answer to the previous version of the question with ethane instead of hexane.
Other Demonstration Examples: Nylon Rope: The adipylchloride or acid solution is dissolved in hexane. The hexane is less dense than the lower water solution and thus floats on top of the water. The chemical reaction occurs right between the two layers. Deep Purple Magic: In this demo, dichloromethane is added to water that contains iodine. The density of the dichloromethane is greater than that of the water, therefore it sinks to the bottom.
During the demo, the iodine is extracted from the water into the dichloromethane and gives a very deep purple color. Density examples based upon differences in liquids and solids. The solid has a constant density, but the density of the liquids varies to give various effects. Ice cubes in different liquids: In this demo ice cubes are placed into two clear liquids which appear to be identical.
One liquid is water and the ice cube floats. The other liquid is ethyl alcohol and the ice cube sinks. The ice cube has a constant density, but its behavior changes because of the different densities of the liquids.
Mysterious Ice Eggs in different liquids:. Again in this demo, the egg has a constant density, but the liquids have different densities. If the egg is more dense than the liquid it will sink as in plain water. If the liquids is more dense than the egg, it will float as in the case of the salt water.
In one case, the egg floats in hydrochloric acid because the bubbles of carbon dioxide attached to the side of the egg and make it less dense than the water so that it floats.
Smart Eggs - salt water and acid. Liquid Density examples based upon differences in temperature. There are a number of changes to the structure of water or any other liquid that occurs with increasing temperature. The water molecules gain energy which is used to bend and break the hydrogen bonds. How do you convert mass to density? How do you determine the density of a gas?
What is the density of water? What is linear mass density? Why does density change with temperature? How does density affect ocean currents? See all questions in Density.
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