Solvent Molecular Weight given Molal Freezing Point Lowering Constant 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

✖Molal freezing point constant, also known as cryoscopic constant is dependent on the properties of the solvent, not the solute.ⓘ Molal freezing point constant [K_f]			+10% -10%
✖Molal Heat of Fusion is the amount of energy needed to change one mole of a substance from the solid phase to the liquid phase at constant temperature and pressure.ⓘ Molal Heat of Fusion [ΔH_f]			+10% -10%
✖Solvent Freezing Point is the temperature at which the solvent freezes from liquid to solid state.ⓘ Solvent Freezing Point [T_fp]			+10% -10%

✖Solvent Molecular Weight is a measure of the sum of the atomic weight values of the atoms in a molecule of solvent.ⓘ Solvent Molecular Weight given Molal Freezing Point Lowering Constant [MW_solvent]

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Formula

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Solvent Molecular Weight given Molal Freezing Point Lowering Constant

Formula

`"MW"_{"solvent"} = ("K"_{"f"}*"ΔH"_{"f"}*1000)/("[R]"*("T"_{"fp"}^2))`

Example

`"13.00945kg"=("100K*kg/mol"*"200J/mol"*1000)/("[R]"*(("430K")^2))`

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Solvent Molecular Weight given Molal Freezing Point Lowering Constant Solution

STEP 0: Pre-Calculation Summary

Formula Used

Solvent Molecular Weight = (Molal freezing point constant*Molal Heat of Fusion*1000)/([R]*(Solvent Freezing Point^2))
MW_solvent = (K_f*ΔH_f*1000)/([R]*(T_fp^2))
This formula uses 1 Constants, 4 Variables

Constants Used

[R] - Universal gas constant Value Taken As 8.31446261815324

Variables Used

Solvent Molecular Weight - (Measured in Kilogram) - Solvent Molecular Weight is a measure of the sum of the atomic weight values of the atoms in a molecule of solvent.
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.
Molal Heat of Fusion - (Measured in Joule Per Mole) - Molal Heat of Fusion is the amount of energy needed to change one mole of a substance from the solid phase to the liquid phase at constant temperature and pressure.
Solvent Freezing Point - (Measured in Kelvin) - Solvent Freezing Point is the temperature at which the solvent freezes from liquid to solid state.

STEP 1: Convert Input(s) to Base Unit

Molal freezing point constant: 100 Kelvin Kilogram per Mole --> 100 Kelvin Kilogram per Mole No Conversion Required
Molal Heat of Fusion: 200 Joule Per Mole --> 200 Joule Per Mole No Conversion Required
Solvent Freezing Point: 430 Kelvin --> 430 Kelvin No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

MW_solvent = (K_f*ΔH_f*1000)/([R]*(T_fp^2)) --> (100*200*1000)/([R]*(430^2))

Evaluating ... ...

MW_solvent = 13.0094488959141

STEP 3: Convert Result to Output's Unit

13.0094488959141 Kilogram --> No Conversion Required

FINAL ANSWER

13.0094488959141 ≈ 13.00945 Kilogram <-- Solvent Molecular Weight

(Calculation completed in 00.008 seconds)

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Home » Chemistry » Solution and Colligative properties » Depression in Freezing Point » Solvent Molecular Weight given Molal Freezing Point Lowering Constant

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National Institute of Information Technology (NIIT), Neemrana

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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

Solvent Molecular Weight given Molal Freezing Point Lowering Constant Formula

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

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 Solvent Molecular Weight given Molal Freezing Point Lowering Constant?

Solvent Molecular Weight given Molal Freezing Point Lowering Constant calculator uses Solvent Molecular Weight = (Molal freezing point constant*Molal Heat of Fusion*1000)/([R]*(Solvent Freezing Point^2)) to calculate the Solvent Molecular Weight, The Solvent Molecular Weight given Molal Freezing Point Lowering Constant is the mass of the given solvent. Freezing point depression is a colligative property observed in solutions that results from the introduction of solute molecules to a solvent. Solvent Molecular Weight is denoted by MW_solvent symbol.

How to calculate Solvent Molecular Weight given Molal Freezing Point Lowering Constant using this online calculator? To use this online calculator for Solvent Molecular Weight given Molal Freezing Point Lowering Constant, enter Molal freezing point constant (K_f), Molal Heat of Fusion (ΔH_f) & Solvent Freezing Point (T_fp) and hit the calculate button. Here is how the Solvent Molecular Weight given Molal Freezing Point Lowering Constant calculation can be explained with given input values -> 13.00945 = (100*200*1000)/([R]*(430^2)).

FAQ

What is Solvent Molecular Weight given Molal Freezing Point Lowering Constant?

The Solvent Molecular Weight given Molal Freezing Point Lowering Constant is the mass of the given solvent. Freezing point depression is a colligative property observed in solutions that results from the introduction of solute molecules to a solvent and is represented as MW_solvent = (K_f*ΔH_f*1000)/([R]*(T_fp^2)) or Solvent Molecular Weight = (Molal freezing point constant*Molal Heat of Fusion*1000)/([R]*(Solvent Freezing Point^2)). Molal freezing point constant, also known as cryoscopic constant is dependent on the properties of the solvent, not the solute, Molal Heat of Fusion is the amount of energy needed to change one mole of a substance from the solid phase to the liquid phase at constant temperature and pressure & Solvent Freezing Point is the temperature at which the solvent freezes from liquid to solid state.

How to calculate Solvent Molecular Weight given Molal Freezing Point Lowering Constant?

The Solvent Molecular Weight given Molal Freezing Point Lowering Constant is the mass of the given solvent. Freezing point depression is a colligative property observed in solutions that results from the introduction of solute molecules to a solvent is calculated using Solvent Molecular Weight = (Molal freezing point constant*Molal Heat of Fusion*1000)/([R]*(Solvent Freezing Point^2)). To calculate Solvent Molecular Weight given Molal Freezing Point Lowering Constant, you need Molal freezing point constant (K_f), Molal Heat of Fusion (ΔH_f) & Solvent Freezing Point (T_fp). With our tool, you need to enter the respective value for Molal freezing point constant, Molal Heat of Fusion & Solvent Freezing Point and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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