Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality Calculator

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✖The Vapour Pressure of Pure Solvent is the vapour pressure of solvent prior to addition of solute.ⓘ Vapour Pressure of Pure Solvent [p_o]			+10% -10%
✖The Vapour Pressure of Solvent in Solution is the vapour pressure of solvent post addition of solute.ⓘ Vapour Pressure of Solvent in Solution [p]			+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%
✖The Molecular Mass Solvent is sum of the atomic masses of all atoms in a molecule, based on a scale in which the atomic masses.ⓘ Molecular Mass Solvent [M]			+10% -10%

✖A Van't Hoff Factor is the ratio of observed colligative property to theoretical colligative property.ⓘ Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality [i]

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Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality Solution

STEP 0: Pre-Calculation Summary

Formula Used

Van't Hoff Factor = ((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*1000)/(Vapour Pressure of Pure Solvent*Molality*Molecular Mass Solvent)
i = ((p_o-p)*1000)/(p_o*m*M)
This formula uses 5 Variables

Variables Used

Van't Hoff Factor - A Van't Hoff Factor is the ratio of observed colligative property to theoretical colligative property.
Vapour Pressure of Pure Solvent - (Measured in Pascal) - The Vapour Pressure of Pure Solvent is the vapour pressure of solvent prior to addition of solute.
Vapour Pressure of Solvent in Solution - (Measured in Pascal) - The Vapour Pressure of Solvent in Solution is the vapour pressure of solvent post addition of solute.
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.
Molecular Mass Solvent - (Measured in Kilogram) - The Molecular Mass Solvent is sum of the atomic masses of all atoms in a molecule, based on a scale in which the atomic masses.

STEP 1: Convert Input(s) to Base Unit

Vapour Pressure of Pure Solvent: 2000 Pascal --> 2000 Pascal No Conversion Required
Vapour Pressure of Solvent in Solution: 1895.86 Pascal --> 1895.86 Pascal No Conversion Required
Molality: 1.79 Mole per Kilogram --> 1.79 Mole per Kilogram No Conversion Required
Molecular Mass Solvent: 18 Gram --> 0.018 Kilogram (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

i = ((p_o-p)*1000)/(p_o*m*M) --> ((2000-1895.86)*1000)/(2000*1.79*0.018)

Evaluating ... ...

i = 1616.07697082558

STEP 3: Convert Result to Output's Unit

1616.07697082558 --> No Conversion Required

FINAL ANSWER

1616.07697082558 ≈ 1616.077 <-- Van't Hoff Factor

(Calculation completed in 00.020 seconds)

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< Relative Lowering of Vapour Pressure Calculators

Molecular Mass of Solvent given Relative Lowering of Vapour Pressure

LaTeX Go Molecular Mass Solvent = ((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*1000)/(Molality*Vapour Pressure of Pure Solvent)

Relative Lowering of Vapour Pressure

LaTeX Go Relative Lowering of Vapour Pressure = (Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)/Vapour Pressure of Pure Solvent

Mole Fraction of Solute given Vapour Pressure

LaTeX Go Mole Fraction of Solute = (Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)/Vapour Pressure of Pure Solvent

Mole Fraction of Solvent given Vapour Pressure

LaTeX Go Mole Fraction of Solvent = Vapour Pressure of Solvent in Solution/Vapour Pressure of Pure Solvent

Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality Formula

LaTeX Go

Van't Hoff Factor = ((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*1000)/(Vapour Pressure of Pure Solvent*Molality*Molecular Mass Solvent)
i = ((p_o-p)*1000)/(p_o*m*M)

What causes the Relative Lowering Of Vapour Pressure?

This lowering in vapour pressure is due to the fact that after the solute was added to the pure liquid (solvent), the liquid surface now had molecules of both, the pure liquid and the solute. The number of solvent molecules escaping into vapour phase gets reduced and as a result the pressure exerted by the vapour phase is also reduced. This is known as relative lowering of vapour pressure. This decrease in vapour pressure depends on the amount of non-volatile solute added in the solution irrespective of its nature and hence it is one of the colligative properties.

How to Calculate Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality?

Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality calculator uses Van't Hoff Factor = ((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*1000)/(Vapour Pressure of Pure Solvent*Molality*Molecular Mass Solvent) to calculate the Van't Hoff Factor, The Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality is the ratio between the actual concentration of particles produced when the substance is dissolved and the concentration of a substance as calculated from its mass. Van't Hoff Factor is denoted by i symbol.

How to calculate Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality using this online calculator? To use this online calculator for Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality, enter Vapour Pressure of Pure Solvent (p_o), Vapour Pressure of Solvent in Solution (p), Molality (m) & Molecular Mass Solvent (M) and hit the calculate button. Here is how the Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality calculation can be explained with given input values -> 1616.077 = ((2000-1895.86)*1000)/(2000*1.79*0.018).

FAQ

What is Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality?

The Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality is the ratio between the actual concentration of particles produced when the substance is dissolved and the concentration of a substance as calculated from its mass and is represented as i = ((p_o-p)*1000)/(p_o*m*M) or Van't Hoff Factor = ((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*1000)/(Vapour Pressure of Pure Solvent*Molality*Molecular Mass Solvent). The Vapour Pressure of Pure Solvent is the vapour pressure of solvent prior to addition of solute, The Vapour Pressure of Solvent in Solution is the vapour pressure of solvent post addition of solute, Molality is defined as the total number of moles of solute per kilograms of solvent present in the solution & The Molecular Mass Solvent is sum of the atomic masses of all atoms in a molecule, based on a scale in which the atomic masses.

How to calculate Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality?

The Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality is the ratio between the actual concentration of particles produced when the substance is dissolved and the concentration of a substance as calculated from its mass is calculated using Van't Hoff Factor = ((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*1000)/(Vapour Pressure of Pure Solvent*Molality*Molecular Mass Solvent). To calculate Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality, you need Vapour Pressure of Pure Solvent (p_o), Vapour Pressure of Solvent in Solution (p), Molality (m) & Molecular Mass Solvent (M). With our tool, you need to enter the respective value for Vapour Pressure of Pure Solvent, Vapour Pressure of Solvent in Solution, Molality & Molecular Mass Solvent 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 Van't Hoff Factor?

In this formula, Van't Hoff Factor uses Vapour Pressure of Pure Solvent, Vapour Pressure of Solvent in Solution, Molality & Molecular Mass Solvent. We can use 1 other way(s) to calculate the same, which is/are as follows -

Van't Hoff Factor = ((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*Number of Moles of Solvent)/(Number of Moles of Solute*Vapour Pressure of Pure Solvent)

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