Weight of Solvent given Relative Lowering of Vapour Pressure Solution

STEP 0: Pre-Calculation Summary
Formula Used
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)
W = (po*w*M)/((po-p)*Msolute)
This formula uses 6 Variables
Variables Used
Weight of solvent - (Measured in Kilogram) - The weight of solvent is the quantity of solvent in a solution.
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.
Weight of Solute - (Measured in Kilogram) - The Weight of Solute is the quantity or amount of solute 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.
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.
Molecular Mass Solute - (Measured in Kilogram) - The Molecular Mass Solute is the molecular mass of solute in solution.
STEP 1: Convert Input(s) to Base Unit
Vapour Pressure of Pure Solvent: 2000 Pascal --> 2000 Pascal No Conversion Required
Weight of Solute: 21 Gram --> 0.021 Kilogram (Check conversion ​here)
Molecular Mass Solvent: 18 Gram --> 0.018 Kilogram (Check conversion ​here)
Vapour Pressure of Solvent in Solution: 1895.86 Pascal --> 1895.86 Pascal No Conversion Required
Molecular Mass Solute: 35 Gram --> 0.035 Kilogram (Check conversion ​here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
W = (po*w*M)/((po-p)*Msolute) --> (2000*0.021*0.018)/((2000-1895.86)*0.035)
Evaluating ... ...
W = 0.207413097753025
STEP 3: Convert Result to Output's Unit
0.207413097753025 Kilogram -->207.413097753025 Gram (Check conversion ​here)
FINAL ANSWER
207.413097753025 207.4131 Gram <-- Weight of solvent
(Calculation completed in 00.004 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

Weight of Solvent given Relative Lowering of Vapour Pressure Formula

​LaTeX ​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)
W = (po*w*M)/((po-p)*Msolute)

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 Weight of Solvent given Relative Lowering of Vapour Pressure?

Weight of Solvent given Relative Lowering of Vapour Pressure calculator uses 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) to calculate the Weight of solvent, The Weight of Solvent given Relative Lowering of Vapour Pressure is the weight of solvent present in the solution concerned. Weight of solvent is denoted by W symbol.

How to calculate Weight of Solvent given Relative Lowering of Vapour Pressure using this online calculator? To use this online calculator for Weight of Solvent given Relative Lowering of Vapour Pressure, enter Vapour Pressure of Pure Solvent (po), Weight of Solute (w), Molecular Mass Solvent (M), Vapour Pressure of Solvent in Solution (p) & Molecular Mass Solute (Msolute) and hit the calculate button. Here is how the Weight of Solvent given Relative Lowering of Vapour Pressure calculation can be explained with given input values -> 207413.1 = (2000*0.021*0.018)/((2000-1895.86)*0.035).

FAQ

What is Weight of Solvent given Relative Lowering of Vapour Pressure?
The Weight of Solvent given Relative Lowering of Vapour Pressure is the weight of solvent present in the solution concerned and is represented as W = (po*w*M)/((po-p)*Msolute) or 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). The Vapour Pressure of Pure Solvent is the vapour pressure of solvent prior to addition of solute, The Weight of Solute is the quantity or amount of solute 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, The Vapour Pressure of Solvent in Solution is the vapour pressure of solvent post addition of solute & The Molecular Mass Solute is the molecular mass of solute in solution.
How to calculate Weight of Solvent given Relative Lowering of Vapour Pressure?
The Weight of Solvent given Relative Lowering of Vapour Pressure is the weight of solvent present in the solution concerned is calculated using 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). To calculate Weight of Solvent given Relative Lowering of Vapour Pressure, you need Vapour Pressure of Pure Solvent (po), Weight of Solute (w), Molecular Mass Solvent (M), Vapour Pressure of Solvent in Solution (p) & Molecular Mass Solute (Msolute). With our tool, you need to enter the respective value for Vapour Pressure of Pure Solvent, Weight of Solute, Molecular Mass Solvent, Vapour Pressure of Solvent in Solution & Molecular Mass Solute 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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