Elevation in Boiling Point of the Solvent
Elevation in Boiling Point of the Solvent: Overview
This topic covers concepts, such as, Elevation of Boiling Point, Molal Boiling Point Elevation Constant, Molecular Mass of a Solute through Elevation of Boiling Point & Molal Boiling Point Elevation Constant Using Molar Heat of Vapourisation etc.
Important Questions on Elevation in Boiling Point of the Solvent
A solution containing of a substance in of diethyl ether boils at whereas, pure ether boils at
The molecular mass of the solute would be: (for ether)

The boiling point elevation of acetic acid in benzene is . From this data, find the molar mass of acetic acid. (For benzene, )

Molal elevation constant is the elevation in boiling point produced by

The boiling point (in ) of molal aqueous solution of at bar is closest to: [Given: Ebullioscopic (molal boiling point elevation) constant of water,

The molal elevation constant for water is . What will be the boiling point of molar sucrose solution at pressure? (Assume that the boiling point of pure water is )

Which of the following are correct for the elevation of boiling point ():

The boiling point of benzene is . When of a non-volatile, non-ionisable solute was dissolved in of benzene, the boiling point raised to . Calculate molar mass of the solute in ( for benzene= )
(Report your answer upto 1 decimal value)

The boiling point of aqueous solutions of and should follows the order.

Latent heat of vaporization for a liquid solvent is Let the boiling point be Find the value of of the solvent in .

A protein has been isolated as sodium salt with their molecular formula NaxP (this notation means that xNa+ ions are associated with a negatively charged protein P-x). A solution of this salt was prepared by dissolving 0.25g of this sodium salt of protein in 10g of water and ebullioscopic analysis revealed that solution boils at temperature 6.78 x 10-3 oC higher than the normal boiling point of pure water. Kb of water is 0.52 k kg mol-1. Also elemental analysis revealed that the salt contain 1% sodium metal by weight.
Determine molecular weight of acidic form of protein :

For next two question please follow the same
A protein has been isolated as sodium salt with their molecular formula NaxP (this notation means that xNa+ ions are associated with a negatively charged protein P-x). A solution of this salt was prepared by dissolving 0.25g of this sodium salt of protein in 10g of water and ebullioscopic analysis revealed that solution boils at temperature 6.78 x 10-3 oC higher than the normal boiling point of pure water. Kb of water is 0.52 k kg mol-1. Also elemental analysis revealed that the salt contain 1% sodium metal by weight.
Determine molecular weight of sodium salt of protein.

The molal elevation constant is the ratio of the elevation in boiling point to:

Which of the following aqueous solutions should have the highest boiling point?

The unit of an ebullioscopic constant is ______.

Boiling point of a solvent is . When of the solute of molar mass was dissolved in of the solvent, the boiling point of the solution was found to be . Find the molal elevation constant.

Calculate the mass in grams of an impurity of molar mass which would be required to raise the boiling point of of chloroform by . for chloroform =

If mass is expressed in gram then is given by.

The determination of molar mass from elevation in boiling point is called as

When is added to water.

What is elevation of boiling point?
