Molal Freezing Point Constant given Freezing Point Depression Calculator

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Depression in Freezing Point

Clausius-Clapeyron Equation

Elevation in Boiling Point

Gibb's Phase Rule

Immiscible Liquids

Important Formulas of Clausius-Clapeyron Equation

Important Formulas of Colligative Properties

Osmotic Pressure

Relative Lowering of Vapour Pressure

Van't Hoff Factor

✖The Depression in Freezing Point is the phenomena that describes why adding a solute to a solvent results in the lowering of the freezing point of the solvent.ⓘ Depression in Freezing Point [ΔT_f]			+10% -10%
✖Molality is defined as the total number of moles of solute per kilograms of solvent present in the solution.ⓘ Molality [m]			+10% -10%

✖Molal freezing point constant, also known as cryoscopic constant is dependent on the properties of the solvent, not the solute.ⓘ Molal Freezing Point Constant given Freezing Point Depression [K_f]

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Formula

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Molal Freezing Point Constant given Freezing Point Depression

Formula

`"K"_{"f"} = "ΔT"_{"f"}/"m"`

Example

`"6.703911K*kg/mol"="12K"/"1.79mol/kg"`

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Molal Freezing Point Constant given Freezing Point Depression Solution

STEP 0: Pre-Calculation Summary

Formula Used

Molal freezing point constant = Depression in Freezing Point/Molality
K_f = ΔT_f/m
This formula uses 3 Variables

Variables Used

Molal freezing point constant - (Measured in Kelvin Kilogram per Mole) - Molal freezing point constant, also known as cryoscopic constant is dependent on the properties of the solvent, not the solute.
Depression in Freezing Point - (Measured in Kelvin) - The Depression in Freezing Point is the phenomena that describes why adding a solute to a solvent results in the lowering of the freezing point of the solvent.
Molality - (Measured in Mole per Kilogram) - Molality is defined as the total number of moles of solute per kilograms of solvent present in the solution.

STEP 1: Convert Input(s) to Base Unit

Depression in Freezing Point: 12 Kelvin --> 12 Kelvin No Conversion Required
Molality: 1.79 Mole per Kilogram --> 1.79 Mole per Kilogram No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

K_f = ΔT_f/m --> 12/1.79

Evaluating ... ...

K_f = 6.70391061452514

STEP 3: Convert Result to Output's Unit

6.70391061452514 Kelvin Kilogram per Mole --> No Conversion Required

FINAL ANSWER

6.70391061452514 ≈ 6.703911 Kelvin Kilogram per Mole <-- Molal freezing point constant

(Calculation completed in 00.004 seconds)

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Home » Chemistry » Solution and Colligative properties » Depression in Freezing Point » Molal Freezing Point Constant given Freezing Point Depression

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Created by Akshada Kulkarni

National Institute of Information Technology (NIIT), Neemrana

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Indian Institute of Technology (IIT), Kanpur

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< 23 Depression in Freezing Point Calculators

Depression in Freezing Point given Vapour Pressure

Go Depression in Freezing Point = ((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*[R]*(Solvent Freezing Point^2))/(Vapour Pressure of Pure Solvent*Molar Enthalpy of Fusion)

Depression in Freezing Point given Elevation in Boiling Point

Go Depression in Freezing Point = (Molar Enthalpy of Vaporization*Elevation in Boiling Point*(Solvent Freezing Point^2))/(Molar Enthalpy of Fusion*(Solvent Boiling Point^2))

Relative Lowering of Vapour Pressure given Depression in Freezing Point

Go Relative Lowering of Vapour Pressure = (Molar Enthalpy of Fusion*Depression in Freezing Point)/([R]*Solvent Freezing Point*Solvent Freezing Point)

Molar Enthalpy of Fusion given Freezing point of solvent

Go Molar Enthalpy of Fusion = ([R]*Solvent Freezing Point*Solvent Freezing Point*Molar Mass of Solvent)/(1000*Cryoscopic Constant)

Cryoscopic Constant given Molar Enthalpy of Fusion

Go Cryoscopic Constant = ([R]*Solvent Freezing Point*Solvent Freezing Point*Molar Mass of Solvent)/(1000*Molar Enthalpy of Fusion)

Molar Mass of Solvent given Cryoscopic Constant

Go Molar Mass of Solvent = (Cryoscopic Constant*1000*Molar Enthalpy of Fusion)/([R]*Solvent Freezing Point*Solvent Freezing Point)

Depression in Freezing Point given Osmotic Pressure

Go Depression in Freezing Point = (Osmotic Pressure*Molar Volume*(Solvent Freezing Point^2))/(Temperature*Molar Enthalpy of Fusion)

Solvent Freezing Point given Molal Freezing Point Lowering Constant

Go Solvent Freezing Point = sqrt((Molal freezing point constant*Molal Heat of Fusion*1000)/([R]*Molecular Weight))

Freezing Point of Solvent given Cryoscopic Constant and Molar Enthalpy of Fusion

Go Solvent Freezing Point = sqrt((Cryoscopic Constant*1000*Molar Enthalpy of Fusion)/([R]*Molar Mass of Solvent))

Depression in Freezing Point given Relative Lowering of Vapour Pressure

Go Depression in Freezing Point = (Relative Lowering of Vapour Pressure*[R]*(Solvent Freezing Point^2))/Molar Enthalpy of Fusion

Solvent Molecular Weight given Molal Freezing Point Lowering Constant

Go Solvent Molecular Weight = (Molal freezing point constant*Molal Heat of Fusion*1000)/([R]*(Solvent Freezing Point^2))

Molal Freezing Point Lowering Constant

Go Molal freezing point constant = ([R]*(Solvent Freezing Point^2)*Molecular Weight)/(Molal Heat of Fusion*1000)

Latent Heat of Fusion given Freezing Point of Solvent

Go Latent Heat of Fusion = ([R]*Solvent Freezing Point*Solvent Freezing Point)/(1000*Cryoscopic Constant)

Freezing Point of Solvent given Cryoscopic Constant and Latent Heat of Fusion

Go Solvent Freezing Point = sqrt((Cryoscopic Constant*1000*Latent Heat of Fusion)/[R])

Cryoscopic Constant given Latent Heat of Fusion

Go Cryoscopic Constant = ([R]*Solvent Freezing Point for Cryoscopic Constant^2)/(1000*Latent Heat of Fusion)

Van't Hoff Factor of Electrolyte given Depression in Freezing Point

Go Van't Hoff Factor = Depression in Freezing Point/(Cryoscopic Constant*Molality)

Cryoscopic Constant given Depression in Freezing Point

Go Cryoscopic Constant = Depression in Freezing Point/(Van't Hoff Factor*Molality)

Molality given Depression in Freezing Point

Go Molality = Depression in Freezing Point/(Cryoscopic Constant*Van't Hoff Factor)

Van't Hoff equation for Depression in Freezing Point of electrolyte

Go Depression in Freezing Point = Van't Hoff Factor*Cryoscopic Constant*Molality

Molal Freezing Point Constant given Freezing Point Depression

Go Molal freezing point constant = Depression in Freezing Point/Molality

Molality given Freezing Point Depression

Go Molality = Depression in Freezing Point/Molal freezing point constant

Depression in Freezing Point of Solvent

Go Depression in Freezing Point = Cryoscopic Constant*Molality

Freezing Point Depression

Go Depression in Freezing Point = Cryoscopic Constant*Molality

Molal Freezing Point Constant given Freezing Point Depression Formula

Molal freezing point constant = Depression in Freezing Point/Molality
K_f = ΔT_f/m

Explain Freezing point depression.

The Freezing point depression is the temperature at which the liquid solvent and solid solvent are at equilibrium so that their vapor pressures are equal. When a non-volatile solute is added to a volatile liquid solvent, the solution vapor pressure will be lower than that of the pure solvent. As a result, the solid will reach equilibrium with the solution at a lower temperature than with the pure solvent.

How to Calculate Molal Freezing Point Constant given Freezing Point Depression?

Molal Freezing Point Constant given Freezing Point Depression calculator uses Molal freezing point constant = Depression in Freezing Point/Molality to calculate the Molal freezing point constant, The Molal Freezing Point Constant given Freezing Point Depression, also known as the cryoscopic constant is dependent on the properties of the solvent, not the solute. Molal freezing point constant is denoted by K_f symbol.

How to calculate Molal Freezing Point Constant given Freezing Point Depression using this online calculator? To use this online calculator for Molal Freezing Point Constant given Freezing Point Depression, enter Depression in Freezing Point (ΔT_f) & Molality (m) and hit the calculate button. Here is how the Molal Freezing Point Constant given Freezing Point Depression calculation can be explained with given input values -> 6.703911 = 12/1.79.

FAQ

What is Molal Freezing Point Constant given Freezing Point Depression?

The Molal Freezing Point Constant given Freezing Point Depression, also known as the cryoscopic constant is dependent on the properties of the solvent, not the solute and is represented as K_f = ΔT_f/m or Molal freezing point constant = Depression in Freezing Point/Molality. The Depression in Freezing Point is the phenomena that describes why adding a solute to a solvent results in the lowering of the freezing point of the solvent & Molality is defined as the total number of moles of solute per kilograms of solvent present in the solution.

How to calculate Molal Freezing Point Constant given Freezing Point Depression?

The Molal Freezing Point Constant given Freezing Point Depression, also known as the cryoscopic constant is dependent on the properties of the solvent, not the solute is calculated using Molal freezing point constant = Depression in Freezing Point/Molality. To calculate Molal Freezing Point Constant given Freezing Point Depression, you need Depression in Freezing Point (ΔT_f) & Molality (m). With our tool, you need to enter the respective value for Depression in Freezing Point & Molality and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Molal freezing point constant?

In this formula, Molal freezing point constant uses Depression in Freezing Point & Molality. We can use 1 other way(s) to calculate the same, which is/are as follows -

Molal freezing point constant = ([R]*(Solvent Freezing Point^2)*Molecular Weight)/(Molal Heat of Fusion*1000)

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