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

STEP 0: Pre-Calculation Summary
Formula Used
Colligative Pressure given Van't Hoff factor = (Van't Hoff Factor*Molality*Molecular Mass Solvent)/1000
ΔpVan't Hoff = (i*m*M)/1000
This formula uses 4 Variables
Variables Used
Colligative Pressure given Van't Hoff factor - Colligative Pressure given Van't Hoff factor is the lowering of vapour pressure of pure solvent on addition of solute.
Van't Hoff Factor - A Van't Hoff Factor is the ratio of observed colligative property to theoretical colligative property.
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
Van't Hoff Factor: 1.008 --> 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
ΔpVan't Hoff = (i*m*M)/1000 --> (1.008*1.79*0.018)/1000
Evaluating ... ...
ΔpVan't Hoff = 3.247776E-05
STEP 3: Convert Result to Output's Unit
3.247776E-05 --> No Conversion Required
FINAL ANSWER
3.247776E-05 3.2E-5 <-- Colligative Pressure given Van't Hoff factor
(Calculation completed in 00.004 seconds)

Credits

Created by Prerana Bakli
University of Hawaiʻi at Mānoa (UH Manoa), Hawaii, USA
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Verified by Akshada Kulkarni
National Institute of Information Technology (NIIT), Neemrana
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21 Relative Lowering of Vapour Pressure Calculators

Molecular Mass of Solute given Relative Lowering of Vapour Pressure
Go Molecular Mass Solute = (Weight of Solute*Molecular Mass Solvent*Vapour Pressure of Pure Solvent)/((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*Weight of solvent)
Weight of Solvent given Relative Lowering of Vapour Pressure
Go Weight of solvent = (Vapour Pressure of Pure Solvent*Weight of Solute*Molecular Mass Solvent)/((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*Molecular Mass Solute)
Weight of Solute given Relative Lowering of Vapour Pressure
Go Weight of Solute = ((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*Weight of solvent*Molecular Mass Solute)/(Vapour Pressure of Pure Solvent*Molecular Mass Solvent)
Percentage of Saturation given pressure
Go Percentage of saturation = 100*((Partial Pressure*(Total Pressure-Vapor Pressure of Pure Component A))/(Vapor Pressure of Pure Component A*(Total Pressure-Partial Pressure)))
Van't Hoff Factor for Relative Lowering of Vapour Pressure using Number of Moles
Go 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)
Van't Hoff Factor for Relative Lowering of Vapour Pressure given Molecular Mass and Molality
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)
Moles of Solvent in Dilute Solution given Relative Lowering of Vapour Pressure
Go Number of Moles of Solvent = (Number of Moles of Solute*Vapour Pressure of Pure Solvent)/(Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)
Moles of Solute in Dilute Solution given Relative Lowering of Vapour Pressure
Go Number of Moles of Solute = ((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*Number of Moles of Solvent)/Vapour Pressure of Pure Solvent
Molar Vapor Volume given rate of pressure change
Go Molar Volume = Molal Liquid Volume+((Molal Heat of Vaporization*Change in Temperature)/(Change in Pressure*Absolute Temperature))
Molecular Mass of Solvent given Relative Lowering of Vapour Pressure
Go Molecular Mass Solvent = ((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*1000)/(Molality*Vapour Pressure of Pure Solvent)
Molality using Relative Lowering of Vapour Pressure
Go Molality = ((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*1000)/(Molecular Mass Solvent*Vapour Pressure of Pure Solvent)
Relative Lowering of Vapour Pressure given Weight and Molecular Mass of Solute and Solvent
Go Relative Lowering of Vapour Pressure = (Weight of Solute*Molecular Mass Solvent)/(Weight of solvent*Molecular Mass Solute)
Relative Lowering of Vapour Pressure
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
Go Mole Fraction of Solute = (Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)/Vapour Pressure of Pure Solvent
Ostwald-Walker Dynamic Method for Relative Lowering of Vapour Pressure
Go Relative Lowering of Vapour Pressure = Loss of Mass in Bulb Set B/(Loss of Mass in bulb set A+Loss of Mass in Bulb Set B)
Relative Lowering of Vapour Pressure given Number of Moles for Concentrated Solution
Go Relative Lowering of Vapour Pressure = Number of Moles of Solute/(Number of Moles of Solute+Number of Moles of Solvent)
Van't Hoff Relative Lowering of Vapour Pressure given Number of Moles
Go Relative Lowering of Vapour Pressure = (Van't Hoff Factor*Number of Moles of Solute)/Number of Moles of Solvent
Van't Hoff Relative Lowering of Vapour Pressure given Molecular Mass and Molality
Go Colligative Pressure given Van't Hoff factor = (Van't Hoff Factor*Molality*Molecular Mass Solvent)/1000
Mole Fraction of Solvent given Vapour Pressure
Go Mole Fraction of Solvent = Vapour Pressure of Solvent in Solution/Vapour Pressure of Pure Solvent
Relative Lowering of Vapour Pressure given Number of Moles for Dilute Solution
Go Relative Lowering of Vapour Pressure = Number of Moles of Solute/Number of Moles of Solvent
Relative Lowering of Vapour Pressure given Molecular Mass and Molality
Go Relative Lowering of Vapour Pressure = (Molality*Molecular Mass Solvent)/1000

22 Important Formulas of Colligative Properties Calculators

Van't Hoff Osmotic Pressure for Mixture of Two Solutions
Go Osmotic Pressure = ((Van't Hoff Factor of Particle 1*Concentration of Particle 1)+(Van't Hoff Factor of Particle 2*Concentration of Particle 2))*[R]*Temperature
Osmotic Pressure given Vapour Pressure
Go Osmotic Pressure = ((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*[R]*Temperature)/(Molar Volume*Vapour Pressure of Pure Solvent)
Osmotic Pressure given Depression in Freezing Point
Go Osmotic Pressure = (Molar Enthalpy of Fusion*Depression in Freezing Point*Temperature)/(Molar Volume*(Solvent Freezing Point^2))
Relative Lowering of Vapour Pressure
Go Relative Lowering of Vapour Pressure = (Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)/Vapour Pressure of Pure Solvent
Van't Hoff Osmotic Pressure for Electrolyte
Go Osmotic Pressure = Van't Hoff Factor*Molar Concentration of Solute*Universal Gas Constant*Temperature
Ebullioscopic Constant using Latent Heat of Vaporization
Go Ebullioscopic Constant of Solvent = ([R]*Solvent BP given Latent Heat of Vaporization^2)/(1000*Latent Heat of Vaporization)
Osmotic Pressure given Concentration of Two Substances
Go Osmotic Pressure = (Concentration of Particle 1+Concentration of Particle 2)*[R]*Temperature
Ostwald-Walker Dynamic Method for Relative Lowering of Vapour Pressure
Go Relative Lowering of Vapour Pressure = Loss of Mass in Bulb Set B/(Loss of Mass in bulb set A+Loss of Mass in Bulb Set B)
Relative Lowering of Vapour Pressure given Number of Moles for Concentrated Solution
Go Relative Lowering of Vapour Pressure = Number of Moles of Solute/(Number of Moles of Solute+Number of Moles of Solvent)
Osmotic Pressure given Relative Lowering of Vapour Pressure
Go Osmotic Pressure = (Relative Lowering of Vapour Pressure*[R]*Temperature)/Molar Volume
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 Relative Lowering of Vapour Pressure given Molecular Mass and Molality
Go Colligative Pressure given Van't Hoff factor = (Van't Hoff Factor*Molality*Molecular Mass Solvent)/1000
Ebullioscopic Constant given Elevation in Boiling Point
Go Ebullioscopic Constant of Solvent = Boiling Point Elevation/(Van't Hoff Factor*Molality)
Van't Hoff Equation for Elevation in Boiling Point of Electrolyte
Go Boiling Point Elevation = Van't Hoff Factor*Ebullioscopic Constant of Solvent*Molality
Cryoscopic Constant given Depression in Freezing Point
Go Cryoscopic Constant = Depression in Freezing Point/(Van't Hoff Factor*Molality)
Van't Hoff equation for Depression in Freezing Point of electrolyte
Go Depression in Freezing Point = Van't Hoff Factor*Cryoscopic Constant*Molality
Total Concentration of Particles using Osmotic Pressure
Go Molar Concentration of Solute = Osmotic Pressure/([R]*Temperature)
Osmotic Pressure for Non Electrolyte
Go Osmotic Pressure = Molar Concentration of Solute*[R]*Temperature
Osmotic Pressure given Density of Solution
Go Osmotic Pressure = Density of Solution*[g]*Equilibrium Height
Relative Lowering of Vapour Pressure given Number of Moles for Dilute Solution
Go Relative Lowering of Vapour Pressure = Number of Moles of Solute/Number of Moles of Solvent
Boiling Point Elevation
Go Boiling Point Elevation = Molal Boiling Point Elevation Constant*Molality
Freezing Point Depression
Go Depression in Freezing Point = Cryoscopic Constant*Molality

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

Colligative Pressure given Van't Hoff factor = (Van't Hoff Factor*Molality*Molecular Mass Solvent)/1000
ΔpVan't Hoff = (i*m*M)/1000

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 Relative Lowering of Vapour Pressure given Molecular Mass and Molality?

Van't Hoff Relative Lowering of Vapour Pressure given Molecular Mass and Molality calculator uses Colligative Pressure given Van't Hoff factor = (Van't Hoff Factor*Molality*Molecular Mass Solvent)/1000 to calculate the Colligative Pressure given Van't Hoff factor, The Van't Hoff Relative Lowering of Vapour Pressure given Molecular Mass and Molality formula is the measure of relative lowering of vapour pressure of solute which associates or dissociates in solution. Relative Lowering of Vapour Pressure is also known as Colligative Pressure. Colligative Pressure given Van't Hoff factor is denoted by ΔpVan't Hoff symbol.

How to calculate Van't Hoff Relative Lowering of Vapour Pressure given Molecular Mass and Molality using this online calculator? To use this online calculator for Van't Hoff Relative Lowering of Vapour Pressure given Molecular Mass and Molality, enter Van't Hoff Factor (i), Molality (m) & Molecular Mass Solvent (M) and hit the calculate button. Here is how the Van't Hoff Relative Lowering of Vapour Pressure given Molecular Mass and Molality calculation can be explained with given input values -> 9.7E-5 = (1.008*1.79*0.018)/1000.

FAQ

What is Van't Hoff Relative Lowering of Vapour Pressure given Molecular Mass and Molality?
The Van't Hoff Relative Lowering of Vapour Pressure given Molecular Mass and Molality formula is the measure of relative lowering of vapour pressure of solute which associates or dissociates in solution. Relative Lowering of Vapour Pressure is also known as Colligative Pressure and is represented as ΔpVan't Hoff = (i*m*M)/1000 or Colligative Pressure given Van't Hoff factor = (Van't Hoff Factor*Molality*Molecular Mass Solvent)/1000. A Van't Hoff Factor is the ratio of observed colligative property to theoretical colligative property, 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 Relative Lowering of Vapour Pressure given Molecular Mass and Molality?
The Van't Hoff Relative Lowering of Vapour Pressure given Molecular Mass and Molality formula is the measure of relative lowering of vapour pressure of solute which associates or dissociates in solution. Relative Lowering of Vapour Pressure is also known as Colligative Pressure is calculated using Colligative Pressure given Van't Hoff factor = (Van't Hoff Factor*Molality*Molecular Mass Solvent)/1000. To calculate Van't Hoff Relative Lowering of Vapour Pressure given Molecular Mass and Molality, you need Van't Hoff Factor (i), Molality (m) & Molecular Mass Solvent (M). With our tool, you need to enter the respective value for Van't Hoff Factor, 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.
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