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Explain why a solution has a lower boiling point than the pure solvent?
Wiki User
∙ 12y ago
Most solutions have a HIGHER boiling point than the pure solvent. A solution with a lower boiling point than the solvent has formed an azeotrope.
Wiki User
∙ 12y ago
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Why would the boiling point of a solution be higher than that of a pure solvent?
Liquids in a pure state have a specific boiling point.Water, for example, boils at 100 oC at 1 atm. However once there are impurities in the liquid the boiling point will be elevated. The degree of elevation depends on the quantity of impurity in the liquid.
How does the addition of solute affect freezing and boiling point and vapor pressure on a solvent?
A non-volatile solute affects increases osmotic pressure. This is a colligative property. There will be a higher osmotic pressure required to prevent the solvent from flowing into the solution because the solvent has a higher chemical potential without solute in it.
What effect does adding a solute have on the boiling of solution?
The solution freezes at a lower temperature and boils at a higher temperature.
What will adding solute to pure solvents cause?
Adding a solute to a pure solvent will lower the freezing point, elevate the boiling point, and lower the vapor pressure.
If 2 percent glucose solution and 5 percent glucose solution are separated by a semipermiable menbrane flows from the 2 percent glucose solution to the 5 percent glucose solution?
Yes, during process of osmoses the solvent from higher concentration to lower concentration moves through semipermeable membrane, the 2% solution has lower concentration of solute therefore higher concentration of solvent.
What 2 solute molecules mixed with the solvent molecules in a solution cause the freezing point of a solution to be than it is for an equal volume of pure?
lower, solvent, lower, solvent
How adding solute changes the properties of a solvent?
Solutes raise and lower the boiling points of solvents. :)
Why would the boiling point of a solution be higher than that of a pure solvent?
Liquids in a pure state have a specific boiling point.Water, for example, boils at 100 oC at 1 atm. However once there are impurities in the liquid the boiling point will be elevated. The degree of elevation depends on the quantity of impurity in the liquid.
Compared to the pure water an aqueous solution of calcium chloride has a?
Higher boiling point and a lower freezing point. These are called colligative properties. When a solute is put into solution with the solvent, there is a change in the vapor pressure, osmotic pressure, elevation of the boiling point, and depression of the freezing point.
How does the addition of solute affect freezing and boiling point and vapor pressure on a solvent?
A non-volatile solute affects increases osmotic pressure. This is a colligative property. There will be a higher osmotic pressure required to prevent the solvent from flowing into the solution because the solvent has a higher chemical potential without solute in it.
Is alcohol solution boiling point higher or lower than salt solution?
Lower. The boiling point of ethanol is 78 degrees C. Adding salt to water raises the boiling point of that solution above 100 degrees C.
What are two ways that solutes affect the properties of solvent?
Solutes lower the freezing point and raise the boiling point of a solvent! :)
Why does adding a solute to a solvent raise the boiling point of the solution?
A nonvolatile ( not readily evaporated) solute elevates the boiling point of a solvent (the temperature at which the solvent boils) because its presence lowers the vapor pressure of the solvent. * The normal boiling point of a liquid occurs at the temperature where the vapor pressure is equal to 1 atmosphere. * The presence of a nonvolatile solute decreases the number of solvent molecules per unit volume , so less molecules escape form the liquid. Thus the vapor pressure of the solvent decreases. * Therefore, such a solution with lower vapor pressure must be heated to a higher temperature than the boiling point of the pure solvent to reach a vapor pressure of 1 atmosphere.
Does adding more solute to a solvent raise its freezing point lower its boiling point raise its boiling point or does not affect its boiling point?
raise its freezing point
What is the effect of soluble volatile substance on the boiling point of a water solution?
A soluble volatile substance will lower the boiling point of a solution. The volatile substance will boil at a lower temperature than the water component, thus causing the solution to boil at a lower temperature.
What effect does adding a solute to a solvent have on the freezing point of the solvent?
the temperature at which the solution freezes is lowered.
Why would a solution be called isotonic?
A solution with the same ratio of solute to solvent (concentration) as another solution is called isotonic. If it has more solvent and thus a lower solute concentration, then it is called hypertonic.
