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Titration Final Results

6/12/2012

Congratulations to Bryn Rohdmann who was awarded a gold medallion for her result (within 0.019 of the actual value) in the National Final of the Royal Australian Chemical Institute (RACI) Australian National Chemical Analysis (Titration) Competition.  Congratulations also to Kahlia Mallet-Jackson and Josephine Tucker who were both awarded silver medallions for their results (both students had results within 0.077 of the actual value).

The Royal Australian Chemical Institute (RACI) Australian National Chemical Analysis (Titration) Competition has been running since 1984. Acid-base titration is a method in chemistry that allows quantitative analysis of the concentration of an unknown acid or base solution. This technique is used for chemical analysis in nearly every working laboratory.

The competition has two stages – the first round involves Regional Competitions in each state. The teams that place 1st, 2nd or 3rd in the Regional Competition are then invited to take part in the National Finals.

All participating schools in Queensland compete initially in one of four regions: 

  1. South East Queensland - Brisbane, Gold Coast, Toowoomba and Sunshine Coast Regional           
  2. Central Queensland Regional Competition
  3. Townsville and Cairns Regional Competition
  4. Mackay Regional Competition

 

In the regional competition students compete in teams of three in order to accurately identify the concentration of three different solutions of acetic acid by titration.

Toolooa’s 2012 Team 1 consisted of Bryn Rohdmann, Kahlia Mallet-Jackson and Josephine Tucker. The team placed 1st in the Regional Competition and were then invited to compete in the National Finals.

Team 1 travelled to the Gladstone campus of Central Queensland University to compete in the National Finals on Thursday the 11th of October. There were 12 teams that are Queensland finalists and many others from each state and territory as well. Each team of finalists across the nation competed in the Finals at their closest participating University campus.

The finals were much more demanding that the regional competition and students had just two hours to complete the analysis and calculations.  Each year only the best teams in the Finals achieve remarkable accuracy in this quite difficult exercise, getting results within 0.25% of the actual values.The students worked hard with several after school and weekend practice sessions in order to prepare for the National competition. QAL’s Heather Warren provided invaluable assistance by proving chemicals for practice sessions and by attending practice sessions alongside Chemistry teacher Joanne Cooper in order to assist the students in their preparation for the finals.