On-line Problem Sets

Please download the relevant problem set(s). An on-line form will be available starting in late October for all registered students to submit their answers to each problem set; an e-mail will then be sent automatically to the registrant’s address identifying which answers were correct and incorrect. Students can submit their answers at any time once the on-line form has been made available. Generally, however, they should aim to submit their answers for each problem set no later than 1 week after the next problem set becomes available. A final deadline for answer submission will be posted when the take-home exam is made available.

Problems for 2011-12:

  1. October problem set – English (version français)
  2. November problem set – English (version français)
  3. December problem set – English (version français)
  4. January problem set – English (version français)
  5. February problem set – English (version français)
  6. March take-home exam – this has been sent by email to all students registered in the training program, and is due on or before Monday April 16th 2012. If you did not receive a copy, please contact the On-line Co-ordinator

Corrections:

Set 1 question 16:
Ignore the quantity of heat specified in the question, and assume that although the water comes from glacier run-off, ambient conditions of 25°C and 1 atm apply (It is a nice sunny day in Jasper National Park!)
Set 1 question 18:
Due to an oversight, none of the options are correct, so this question will be ignored in terms of marks. The issue is that NaCl will form two solute species for each formula unit dissolved (a van't Hoff factor of 2), and this was not accounted for in the original solution. A further wrinkle is that the empirical van't Hoff factor for NaCl is actually 1.9, reflecting the difference between each ion's concentration and it's thermodynamic activity. The correct boiling point elevation is therefore either 0.035 K or 0.033 K, depending on which value of the van't Hoff factor is taken.
Set 4 question 72:
This question inadvertently had two options the same. The correct options for this question should have been:
  1. III > II > IV > V > I
  2. I > III > V > II > IV
  3. I > IV > V > III > II
  4. V > I > IV > II > III
  5. I > IV > V > II > III
The file has been updated with the correct options.

On-Line Answer Submission:

You must have registered before you can submit your problem set answers. If you have forgotten your registration details, or have any questions or concerns, please contact the on-line program co-ordinator. To submit your answers, login using the form below, then select the problem set that wish to answer from the list on the resulting page and click on Write Test. Please note that only those tests that you have not yet attempted will be listed:

E-mail address
ID Number

Resources:

The first few problem sets will cover and build on components of a typical grade 12 chemistry curriculum. Subsequent problem sets while reflect the increasing level of difficulty associated with the practice problems published by the host IChO country. Students may wish to investigate the possibility of auditing 1st year chemistry courses at their local college or university where evening classes are available. Alternatively, students can make use of podcasts available through iTunesU. Please see the Resources & Syllabus page for suggested texts, useful links, and other information.