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Why would you expect a 1.5 m CaCl2 solution to have a lower freezing point than a 1.5 m NaCl solution?
Wiki User
∙ 12y ago
CaCl2 has more particles when dissolved
Wiki User
∙ 12y ago
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Compare the boiling and freezing points of 1m solution of glucose to a 1m solution of Cacl2. Why does CaCl2 have a higher boiling and a lower freezing Please explain not just say its 1m and then 3m?
Boiling and freezing points are colligative properties, meaning they depend on the number of solute particles dissolve in solution. Glucose is a molecular compound so it is one particle dissolved in solution. CaCl2 will dissociate into three particles in solution. There are three times as many particles present in solution when CaCl2 dissolves.
When compared to pure water what will a 0.5 M solution of potassium chloride have a. lower boiling point b. lower freezing point c. higher capor pressure d. lower osmotic pressure?
a lower freezing point
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.
Can you lower freezing point of pure water?
The solution that will lower the freezing point of water the most is going to be the solution with the highest concentration of particles. This will likely depend on whether the salt dissociates into 2, 3, etc... particles.
Does calcium chloride raise or lower boiling point and freezing point of water at standard pressure?
The boiling point will increase with the addition of CaCl. I did an experiment where I added 13.002g of CaCl to 30mL of H2O and it raised the boiling point to 112oC. The initial reaction of CaCl and water produces heat in itself. The solution I used raised the water temperature to 75oC before the heat source was added to the water. I haven't experimented with the freezing point yet but I am assuming it will lower it because Calcium Chloride is an ionic salt and there is a tendency in ionic salts to lower the freezing point.
Compare the boiling and freezing points of 1m solution of glucose to a 1m solution of Cacl2. Why does CaCl2 have a higher boiling and a lower freezing Please explain not just say its 1m and then 3m?
Boiling and freezing points are colligative properties, meaning they depend on the number of solute particles dissolve in solution. Glucose is a molecular compound so it is one particle dissolved in solution. CaCl2 will dissociate into three particles in solution. There are three times as many particles present in solution when CaCl2 dissolves.
Will NaCl's affect the freezing point of a solution make the freezing point increase?
The freezing point of water solutions containing sodium chloride is lower.
How does the amount of salt in a solution affect its freezing point?
Increasing the concentration of sodium chloride in water the freezing point is lower.
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
What information is most useful to determine the solution that has a lower freezing point?
Probably the freezing coefficient, followed by the ionic concentration of the solute.
What information is most useful to determine the solution that has the lower freezing point?
Probably the freezing coefficient, followed by the ionic concentration of the solute.
When compared to pure water what will a 0.5 M solution of potassium chloride have a. lower boiling point b. lower freezing point c. higher capor pressure d. lower osmotic pressure?
a lower freezing point
Who was the inventor of putting salt on ice roads?
No one really invented it. For many years, salt has been known to lower the freezing point of water. This happens when the salt's ions dissociate in water. The act of lowering a freezing point (or raising a boiling point) is called water's colligative property. Generally speaking, the more ions in solution, the lower temperature at which water will freeze. The salt used on roads is usually calcium chloride (CaCl2).
Why is the curve for the freezing point of solvent different from the freezing point of solution?
it is increased with the increasing density
What effect did the addition of sugar to Beaker B and salt to Beaker C have on the freezing point of the water in these beakers?
The freezing point is lower for a saline solution.
What happends when antifreeze is mixed with water?
Nothing, you have a solution of antifreeze. However if you then cool the solution the freezing point will be lower than that of pure water.
What effect does a solute have on the freezing point of a solvent?
When any solute is dissolved into a solvent, the freezing point will always go down.
