What is the boiling point elevation of a solution containing 17.1 g of sucrose in 100.0...

Question

Question

What is the boiling point elevation of a solution containing 17.1 g of sucrose in 100.0 g of water? The molal

elevation constant of water is 0.512°C/m and the molar mass of sucrose is 342 g/mol.

science chemistry

Answer 1

Answer #1

Solution:

Elevation in boiling point can be calculated by using following equation

∆Tb = Kb x (w/M) x (1000/W)

Where,

∆Tb = elevation in boiling point

Kb = elevation constant = 0.512 °C/m

w = weight of solute = 17.1 g

M= molar mass of solute = 342 g/mol

W= weight of solvent = 100g

∆Tb = 0.512 °C/m x (17.1 g/342 g/mol) x (1000/100g)

∆Tb = 0.256 °C

Answer 2

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