CHEM1109 - Resources for Week 5
Week 4
Topics and learning outcomes
Solutions
calculate concentrations in molarity, molality, mole fraction, % w/w and %v/v and perform dilutions
predict qualitatively the solubilities of gases in liquids based on their chemical structure
determine the sign of ΔH for the dissolution of a gas in a liquid from the temperature dependence of its solubility
understand the effects of pressure on the solubility of gases
explain the molecular origin of "The Bends" and the formation of limestone caves
predict qualitatively the miscibilities of liquids based on their molecular structures
identify solutes as strong, weak or non-electrolytes
explain the origin of vapour pressure lowering and boiling point elevation of a solvent by a non-volatile solute
estimate the vapour pressure of solutions of non-volatile and volatile solutes using Raoult's Law
read a phase diagram
explain the meaning of ideality for gases and solutions
predict deviations from ideal gas behaviour
calculate the pressure of a real gas using the van der Waal's equation
explain the molecular origin of positive and negative deviations from Raoult's Law
explain the principles underlying fractional distillation
predict which combinations of solvents would be expected to be ideal and which non-ideal
understand the concept of activity
calculate expected freezing point depressions of solutions
calculate expected solution osmotic pressures
estimate molar masses from colligative property data
estimate the degree of dissociation of electrolytes from colligative property data
explain the origin of osmotic pressure and how it can be measured
Lecture notes, tutorial homework and resources
ChemCAL and other resources
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Contributed links
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Week 6