Topics and Learning Outcomes

Weak Acids and Bases
- explain the difference between a strong and weak acid and the difference between a strong and weak base in terms of the percentage dissociation in solution
- explain the increase in pK_a values for dissocation of the protons in a polyprotic acid

Calculations Involving pK_a
- use pK_w, pK_a and pK_b to calculate the pH of a solution containing a weak acid or base
- use the increase in pK_a values for dissocation of the protons in a polyprotic acid to perform calculations
- be able to explain what buffers are and how they work
- be able to calculate the pH of a buffer system and be able to design a buffer with a required pH
- use titration curves to characterize acids and bases, using the pH at the equivalence and half-equivalence points
- design and perform titration experiments to obtain pK_a values with appropriate choice of indicator

Periodic Trends
- recognize trends in the Periodic Table and the correlation between the trends in atomic radii, ionization energies and electronegativity
- explain the origin of these trends in terms of the electronic structure of the atoms
- predict reactivity based on these trends, particularly how the acid, base or amphoteric character of an element's oxide and hydroxide are related to its position in the Periodic Table

Intermolecular Forces and Phase Behaviour
- list the types of intermolecular forces and their relative strengths
- identify the intermolecular forces that exist for particular compounds
- rank melting and boiling points for related compounds on the basis of these forces

Textbook and eBook References

Weak Acids and Bases - Section 11.4
Calculations Involving pK_a - Sections 11.4, 11.6 and 11.7
Periodic Trends - Sections 4.8 - 4.9 and 11.8
Intermolecular Forces and Phase Behaviour - Sections 6.7 - 6.8

references are to: [main text] Blackman, Bottle, Schmid, Mocerino and Wille, Chemistry, 3^rd Edition, 2015 (John Wiley)
[fundamentals focused alternative] Blackman, Bridgeman, Lawrie, Southam, Thompson and Williamson, Chemistry: Core Concepts, 2015 (John Wiley)

Strong and weak acids/bases (in Wikibooks General Chemistry)
Weak acids and bases (in ChemWiki)
Buffer systems (in Wikibooks General Chemistry)
Acid-base equilibria (in Wikibooks General Chemistry)
Buffers (in ChemWiki)
Weak acids and bases (in ChemWiki)
Phase changes (in Wikibooks General Chemistry)

the eBook references are free and are taken from high quality sources.

Lecture Notes, Tutorial Worksheets & Answers and Suggested Exam Questions

You need to login to eLearning to access lecture notes.

ChemCAL and iChem Resources

Weak Acids and Bases

Calculations Involving pK_a

Periodic Trends

Electronegativity and bonding

Intermolecular Forces and Phase Behaviour

Contributed Links and Resources

You can contribute resources to this site and rank the existing resources: log in to eLearning and follow the link to 'Contribute' under 'Course Resources'.

Weak Acids and Bases -

Calculations Involving pK_a -

Definition of pH, pOH, "p", sample calculations

Periodic Trends -

Intermolecular Forces and Phase Behaviour -

Most Popular Resources This Week

	Quiz 2 - Sample Quiz				418 hits
	Lecture notes weeks 8-13				418 hits
	Lecture notes weeks 8-13				171 hits
	Lecture notes weeks 1-7				139 hits
	Answers to Critical Thinking Questions 7				100 hits

CHEM1002 - Resources for Week 9