Does sugar still have volume when it is dissolved in water?

Answer 1

Yes, it certainly does, although not necessarily the same volume it did when it was a solid. When you add sugar to water and dissolve it, the volume of the sugar water will be greater than the volume of the water before you added it.

You can determine how much the volume changes by just measuring the volume before and after adding sugar and taking the difference. However, note that upon adding sugar to water and dissolving it, you can't treat it like "dissolved sugar" and "water" separately. They are now a solution and you can't really separate the volume of sugar molecules unless you talk about molecular size and Van der Waals radii and other complicated effects when water interacts with solutes on a molecular level. So while the volume will certainly change when you add sugar and dissolve it in water, exactly what amount of that change is due to the molecular size of sugar molecules and what is due to other effects is difficult to determine exactly.

* Sucrose's concentration is 4.636 M: (1587 g/L)/(342.2965 g/mol). * Water's concentration is 55.51 M: (1000 g/L)/(18.0153 g/mol) * 2.5 M of solution is 1316.3 g/L. Its molar fraction is .04156 M/M: 2.5/4.636+55.51. * The density-guess would be 1024.4 g/L: .04156(1587 g/L)+.95844(1000 g/L). The solute's proper volume is thus 2039.2 g/L: (1587 g/L)(1316.3 g/L)/(1024.4 g/L). Of course it does; all materials take up volume, other than fictional objects such as black holes. They like each other, so they shrink.

Answer 2

yes of course it has, because when you evaporate the solvent you will see the salt remaining under it! try it! dissolve some table salt in water, then boil it or leave it under sunlight for 3 to 4 days. if you boil it, small salt crystals are found, if you evaporate them under sunlight, big crystals are obtained. enjoy your easy experiment :P

Answer 3

yes, but actually words the solvent(water) becomes a solution(saltwater) after you add a solute(salt), in other words the solution's(saltwater) volume is larger than the solvent(water).

Answer 4

Salt will only change volume to fill its container if it is a gas. Sodium chloride will do this at temperatures above its boiling point, which is 1413 degrees C, or 2575 degrees F.

Answer 5

Of course, a water solution of NaCl is obtained; but the molecules of NaCl and H2O are dissociated in ions.