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What is the molality of a solution of a certain solute in a solvent if there is a freezing point depression of 0.184ºC and the freezing point constant is 18.4 ?
- a)0.01
- b)1
- c)0.001
- d)100
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
What is the molality of a solution of a certain solute in a solvent if...
The molality (m) of a solution can be calculated using the formula:
m = moles of solute / mass of solvent in kg
To determine the moles of solute, we need to use the freezing point depression (ΔTf) and the cryoscopic constant (Kf) of the solvent. The formula for freezing point depression is:
ΔTf = Kf x m
We can rearrange this formula to solve for m:
m = ΔTf / Kf
Substituting the given values, we get:
m = 0.184 / Kf
The value of Kf depends on the solvent. For example, the Kf of water is 1.86 °C/m. Without knowing the solvent and its Kf, we cannot calculate the molality of the solution.
m = moles of solute / mass of solvent in kg
To determine the moles of solute, we need to use the freezing point depression (ΔTf) and the cryoscopic constant (Kf) of the solvent. The formula for freezing point depression is:
ΔTf = Kf x m
We can rearrange this formula to solve for m:
m = ΔTf / Kf
Substituting the given values, we get:
m = 0.184 / Kf
The value of Kf depends on the solvent. For example, the Kf of water is 1.86 °C/m. Without knowing the solvent and its Kf, we cannot calculate the molality of the solution.
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Community Answer
What is the molality of a solution of a certain solute in a solvent if...
Given: ∆Tf=0.184•c and Kf = 18.4
WKT
∆Tf=Kf m
m = ∆Tf/Kf
m=0.184/18.4
m=0.01
WKT
∆Tf=Kf m
m = ∆Tf/Kf
m=0.184/18.4
m=0.01
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What is the molality of a solution of a certain solute in a solvent if there is a freezing point depression of 0.184ºC and the freezing point constant is 18.4 ?a)0.01b)1c)0.001d)100Correct answer is option 'A'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about What is the molality of a solution of a certain solute in a solvent if there is a freezing point depression of 0.184ºC and the freezing point constant is 18.4 ?a)0.01b)1c)0.001d)100Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the molality of a solution of a certain solute in a solvent if there is a freezing point depression of 0.184ºC and the freezing point constant is 18.4 ?a)0.01b)1c)0.001d)100Correct answer is option 'A'. Can you explain this answer?.
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