Questions tagged [colligative-properties]
Colligative properties of solutions are properties that depend upon the concentration of solute molecules or ions, but not upon the chemical identity of the solute.
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Intuitive explanation for depression of freezing point
Why does depression of freezing point takes place if a non-volatile solute is added to the solution?
For more details about the question checkout this link below
Depression of freezing point
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1answer
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Why it is very rare to find a compound that lacks carbon to be liquid at standard temperatures and pressures?
It is the first time I heard such a generalization, I had no idea. Why being liquid in standard conditions is special to compounds which contain carbon atom? Which property of carbon cause this?
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Proper explanation for depression of freezing point [closed]
Why does depression of freezing point takes place if a non-volatile solute is added to the solution?
Depression of freezing point
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1answer
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Depression of freezing point [closed]
Recently, I learnt that by adding a non-volatile solute to a solvent, the vapour pressure of the solution is decreased and consequently its boiling point.
Also consider the definition of the ...
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1answer
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Why does freezing point decrease when vapour pressure decreases in dilute solutions?
I was studying colligative properties of dilute solutions, and one of the properties was freezing point depression. The confusion I had was that, if vapour pressure decreases, it should be easier to ...
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1answer
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What happens to the gas inside cold drinks as the cold drink is frozen?
According to Henry's law the amount of gas dissolved is directly proportional to the pressure exerted by a gas on the surface of the liquid.
And we know if we increase the temperature, the amount of ...
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1answer
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Finding molar mass of naphthalene using the freezing point of a solution?
Naphthalene is the main ingredient in some mothballs. The freezing
point of a solution made by dissolving $\pu{7.01 g}$ of naphthalene in $\pu{200 g}$
of benzene is $4.20 \pu{^\circ C}$ . What is ...
2
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0answers
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Why is osmotic pressure the best colligative property? [closed]
The osmotic pressure method has the advantage over
other methods as pressure measurement is around the room
temperature and the molarity of the solution is used instead of molality.
As compared ...
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0answers
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How does dry air get saturated in the Ostwald-Walker Method?
This question was already asked and this was the answer that was posted:
"So basically, before you start the experiment the vapors have already formed, meaning that thermodynamic equilibrium has been ...
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0answers
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Is my proof valid for the formula of elevation in boiling point? [closed]
Is my proof valid for the formula of elevation in boiling point?
proof
By Clausius clayperon equation,
$$\ln(P)=-\frac{∆H_v}{RT}+c$$
Differentiating,
$$\frac{dP}{...
2
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0answers
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Why does only a single azeotropic composition exist for a mixture of two given substances?
In the image below, which represents a generic composition vs. temperature plot for a mixture, there is a single intersection point between the vapor and liquid curves. This is due to the fact that ...
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1answer
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How to determine the highest freezing point by van't hoff factor when concentration is same? [closed]
Whch of the following will have the highest freezing point?
a) 0.1M KCl
b) 0.1M glucose
c) 0.1M BaCl2
d) 0.1M AlCl3
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1answer
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How do repulsive solute interactions affect the van't Hoff factor?
Context. Consider an ideal solution, one in which the intermolecular solvent-solvent, solute-solute, and solute-solvent interactions are all equal. The presence of a solute therefore produces (solely) ...
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1answer
714 views
Relationship between freezing point depression and hydrogen bonds
Freezing point of a solvent is decreased due to the added solute particles in it. e.g. ions. Therefore electrolytes contribute to lowering freezing point (say for physiological conditions).
If a ...
2
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1answer
92 views
Order of molecular mass of solvent; given boiling point [closed]
Given three solvents X, Y, Z. Order of boiling point of pure solvent X < Y < Z and same order of molal elevation constant ($K_\mathrm{b}$). Find the order of molecular mass.
So I got this ...
