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Solvent Molecular Weight in Boiling Point Elevation Calculator

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✖Molal Boiling Point Elevation Constant is the constant of elevation in boiling point of solute and has a specific value depending on the identity of the solvent.ⓘ Molal Boiling Point Elevation Constant [K_b]			+10% -10%
✖Molal Heat of Vaporization is the energy needed to vaporize one mole of a liquid.ⓘ Molal Heat of Vaporization [ΔH_v]			+10% -10%
✖Solvent boiling point is the temperature at which the vapor pressure of the solvent equals the pressure surrounding and changes into a vapor.ⓘ Solvent Boiling Point [T_bp]			+10% -10%

✖Molecular Weight is the mass of a given molecule.ⓘ Solvent Molecular Weight in Boiling Point Elevation [MW]

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Solvent Molecular Weight in Boiling Point Elevation Solution

STEP 0: Pre-Calculation Summary

Formula Used

Molecular Weight = (Molal Boiling Point Elevation Constant*Molal Heat of Vaporization*1000)/([R]*(Solvent Boiling Point^2))
MW = (K_b*ΔH_v*1000)/([R]*(T_bp^2))
This formula uses 1 Constants, 4 Variables

Constants Used

[R] - Universal gas constant Value Taken As 8.31446261815324

Variables Used

Molecular Weight - (Measured in Kilogram) - Molecular Weight is the mass of a given molecule.
Molal Boiling Point Elevation Constant - Molal Boiling Point Elevation Constant is the constant of elevation in boiling point of solute and has a specific value depending on the identity of the solvent.
Molal Heat of Vaporization - (Measured in Joule Per Mole) - Molal Heat of Vaporization is the energy needed to vaporize one mole of a liquid.
Solvent Boiling Point - (Measured in Kelvin) - Solvent boiling point is the temperature at which the vapor pressure of the solvent equals the pressure surrounding and changes into a vapor.

STEP 1: Convert Input(s) to Base Unit

Molal Boiling Point Elevation Constant: 0.51 --> No Conversion Required
Molal Heat of Vaporization: 11 KiloJoule Per Mole --> 11000 Joule Per Mole (Check conversion here)
Solvent Boiling Point: 15 Kelvin --> 15 Kelvin No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

MW = (K_b*ΔH_v*1000)/([R]*(T_bp^2)) --> (0.51*11000*1000)/([R]*(15^2))

Evaluating ... ...

MW = 2998.7907190653

STEP 3: Convert Result to Output's Unit

2998.7907190653 Kilogram -->2998790.7190653 Gram (Check conversion here)

FINAL ANSWER

2998790.7190653 ≈ 3E+6 Gram <-- Molecular Weight

(Calculation completed in 00.004 seconds)

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Created by Akshada Kulkarni

National Institute of Information Technology (NIIT), Neemrana

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< Elevation in Boiling Point Calculators

Ebullioscopic Constant using Molar Enthalpy of Vaporization

LaTeX Go Ebullioscopic Constant of Solvent = ([R]*Solvent Boiling Point*Solvent Boiling Point*Molar Mass of Solvent)/(1000*Molar Enthalpy of Vaporization)

Ebullioscopic Constant using Latent Heat of Vaporization

LaTeX Go Ebullioscopic Constant of Solvent = ([R]*Solvent BP given Latent Heat of Vaporization^2)/(1000*Latent Heat of Vaporization)

Ebullioscopic Constant given Elevation in Boiling Point

LaTeX Go Ebullioscopic Constant of Solvent = Boiling Point Elevation/(Van't Hoff Factor*Molality)

Elevation in Boiling Point of Solvent

LaTeX Go Boiling Point Elevation = Ebullioscopic Constant of Solvent*Molality

Solvent Molecular Weight in Boiling Point Elevation Formula

LaTeX Go

Molecular Weight = (Molal Boiling Point Elevation Constant*Molal Heat of Vaporization*1000)/([R]*(Solvent Boiling Point^2))
MW = (K_b*ΔH_v*1000)/([R]*(T_bp^2))

What is Boiling point elevation?

Boiling point Elevation is defined as the increase in the boiling point of a solvent upon the addition of a solute. When a non-volatile solute is added to a solvent, the resulting solution has a higher boiling point than that of the pure solvent.

Why Does Boiling Point Elevation Occur?

The boiling point of a liquid is the temperature at which its vapour pressure is equal to the pressure of its surrounding environment. Non-volatile substances do not readily undergo evaporation and have very low vapour pressures (assumed to be zero). When a non-volatile solute is added to a solvent, the vapour pressure of the resulting solution is lower than that of the pure solvent.

Therefore, a greater amount of heat must be supplied to the solution for it to boil. This increase in the boiling point of the solution is the boiling point elevation. An increase in the concentration of added solute is accompanied by a further decrease in the vapour pressure of the solution and further elevation in the boiling point of the solution

How to Calculate Solvent Molecular Weight in Boiling Point Elevation?

Solvent Molecular Weight in Boiling Point Elevation calculator uses Molecular Weight = (Molal Boiling Point Elevation Constant*Molal Heat of Vaporization*1000)/([R]*(Solvent Boiling Point^2)) to calculate the Molecular Weight, The Solvent Molecular Weight in Boiling Point Elevation is the mass of a given molecule. Different molecules of the same compound may have different molecular masses because they contain different isotopes of an element. Molecular Weight is denoted by MW symbol.

How to calculate Solvent Molecular Weight in Boiling Point Elevation using this online calculator? To use this online calculator for Solvent Molecular Weight in Boiling Point Elevation, enter Molal Boiling Point Elevation Constant (K_b), Molal Heat of Vaporization (ΔH_v) & Solvent Boiling Point (T_bp) and hit the calculate button. Here is how the Solvent Molecular Weight in Boiling Point Elevation calculation can be explained with given input values -> 3E+9 = (0.51*11000*1000)/([R]*(15^2)).

FAQ

What is Solvent Molecular Weight in Boiling Point Elevation?

The Solvent Molecular Weight in Boiling Point Elevation is the mass of a given molecule. Different molecules of the same compound may have different molecular masses because they contain different isotopes of an element and is represented as MW = (K_b*ΔH_v*1000)/([R]*(T_bp^2)) or Molecular Weight = (Molal Boiling Point Elevation Constant*Molal Heat of Vaporization*1000)/([R]*(Solvent Boiling Point^2)). Molal Boiling Point Elevation Constant is the constant of elevation in boiling point of solute and has a specific value depending on the identity of the solvent, Molal Heat of Vaporization is the energy needed to vaporize one mole of a liquid & Solvent boiling point is the temperature at which the vapor pressure of the solvent equals the pressure surrounding and changes into a vapor.

How to calculate Solvent Molecular Weight in Boiling Point Elevation?

The Solvent Molecular Weight in Boiling Point Elevation is the mass of a given molecule. Different molecules of the same compound may have different molecular masses because they contain different isotopes of an element is calculated using Molecular Weight = (Molal Boiling Point Elevation Constant*Molal Heat of Vaporization*1000)/([R]*(Solvent Boiling Point^2)). To calculate Solvent Molecular Weight in Boiling Point Elevation, you need Molal Boiling Point Elevation Constant (K_b), Molal Heat of Vaporization (ΔH_v) & Solvent Boiling Point (T_bp). With our tool, you need to enter the respective value for Molal Boiling Point Elevation Constant, Molal Heat of Vaporization & Solvent Boiling 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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