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BOILING
POINT
ELEVATION
CASTILLO CATAQUIZ
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BOILING
POINT
ELEVATION
CASTILLO CATAQUIZ
H E
L
L
O
Boiling Point Elevation
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What is boiling point elevation?
What is boiling point elevation?
Application in Real Life
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Example Problem
CASTILLO CATAQUIZ GAJO PABICO SALAPONG
A solution boils when vapor pressure = atmospheric pressure
CASTILLO CATAQUIZ GAJO PABICO SALAPONG
A solution boils when vapor pressure = atmospheric pressure
CASTILLO CATAQUIZ GAJO PABICO SALAPONG
A solution boils when vapor pressure = atmospheric pressure
CASTILLO CATAQUIZ GAJO PABICO SALAPONG
TODAY'S TOPIC / BRIEF INTRODUCTION SOCIAL SCIENCE CLASS / LAMFORD SCHOOL
TODAY'S TOPIC
BRIEF INTRODUCTION
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A solution boils when vapor pressure = atmospheric pressure
CASTILLO CATAQUIZ GAJO PABICO SALAPONG
lower vapor pressure
CASTILLO CATAQUIZ GAJO PABICO SALAPONG
Why is it
easier to boil water
CASTILLO CATAQUIZ at the top of a mountain? GAJO PABICO SALAPONG
Sugar Refining
BP elevation helps this process by monitoring the level of saturation of the solution, which is an important consideration for crystallization.
Molar Mas
BP elevation can be used to determine the molar mass of a solute.
Salt
BP elevation can be used to obtain salt by boiling sea water to recover the salt it contains.
Real Life Application of Boiling Point
Elevation
CASTILLO CATAQUIZ GAJO PABICO SALAPONG
Solvent Kb value (in °C.kg.mol-1)
Water ---------------------------------------0.
Phenol---------------------------------------3.
Acetic Acid----------------------------------3.
Chloroform---------------------------------3.
Benzene -----------------------------------2.
The ebullioscopic constant (Kb) is often expressed in
terms of ° C/molal or oC.kg.mol-1.
CASTILLO CATAQUIZ GAJO PABICO SALAPONG
EXAMPLE
NO.
20g of NaOH was dissolved in 200g of Water. Calculate the boiling of the solution.
EXAMPLE
NO.
A solution of sorbitol(C6H14O6) made with 1312 g of water boils at 101.2°C. What was the mass of sorbitol in the solution?
3.07m sorbitol x 182.17 g sorbitol
1 mol
= 559.2 ≈ 560g