Water had the lowest bp of 100C b/c it has no solute to block the movement which cause to have a lower bp when heated. Water with a solute of sugar has a slightly higher bp of 101C because it has a solute o block off some of the waters movement to the top. Water and salt had the highest bp of 102C. Since salt is an ionic comp it has a higher bp because it is held more trogly together than molecular comp. adding more additonal solute will cause the bp to rise even higher cause it increases the molarity of the solution.
is that somewhat right? That is what i wrote for my conclusion in my lab report.
bp = boiling point
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Somewhat I guess but barely. Instead of talking about movement of the molecules (which in some cases could be construed as being correct), I would rather you talk about the interaction between the solvent molecules and the solute. In the case of sugar, the attraction between the sugar molecules and the water molecules hinders the water molecules from leaving the liquid phase into the vapor phase; therefore, the boiling point must be slightly higher to overcome this attractive force. In the case of NaCl, that ionizes into two particles so there are more attractions (mole for mole) than in a non-ionized solute like sugar, so the effect of NaCl on the boiling point of water is about twice as much (twice the number of particles). Then pure water has no such attractions from a solute and it has the normal boiling point of 100. Actually, it would flow better if the last sentence was reworked and place at the beginning to set the stage for what the normal boiling point is.
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