QLD - Year 12 Chemistry Unit 3 and 4, IA2 student experiment suggestions please

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Discussion Overview

The discussion revolves around selecting an appropriate experiment for a Year 12 Chemistry IA2 assessment, specifically comparing titration and galvanic cell experiments. Participants explore the feasibility, complexity, and educational value of each option.

Discussion Character

  • Debate/contested
  • Exploratory
  • Technical explanation

Main Points Raised

  • One participant suggests titration as a straightforward option, emphasizing the importance of having patience and a functioning burette.
  • Another participant notes that the choice between experiments is subjective, comparing it to choosing between sports, and highlights the importance of available resources.
  • A participant with extensive experience claims titration is easier but acknowledges that the galvanic cell experiment may be more engaging and educational.
  • Concerns are raised about potential pitfalls in titration, such as using incorrect solutions, which could lead to failure in achieving desired results.
  • There is a suggestion that impressing the teacher with a more challenging experiment might be beneficial for grading and recommendations, though the difficulty of the galvanic cell experiment remains uncertain.

Areas of Agreement / Disagreement

Participants express differing opinions on the ease and educational value of the two experiments, indicating that no consensus exists regarding which experiment is definitively better.

Contextual Notes

Participants mention various factors that could influence the choice of experiment, such as available support, hardware, glassware, and reagents, which may not be universally applicable.

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Heyy I just started year 12 this year, and my school has already started our IA2 student experiment, I was wondering which experiment would be the best choice for me to do and would help me to achieve a 20/20.

1. Titration experiment
2. Galvanic cell experiment
could you also provide a list of the pros and cons of these experiments?
 
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I can't think of a reason why one could be better than other. It is more or less as asking which sport is better - tennis, or basketball?

The devil is in the details - what kind of support, hardware, glassware and reagents is available.
 
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Likes   Reactions: WWGD, BillTre and (deleted member)
Electrochemistry tends to be quite tricky and the theory too.

Titration is easy as long as you have patience and a working burette. I'd go for that.
 
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In my experience (now more than 50 years old), the titration experiment is easier. What could go wrong? I remember in my class, one group of students got the base directly from the reagent bottle, rather than the specially prepared solution from the teacher. Consequently, they could not neutralize the solution practically no matter how much base was added. The solution to be titrated was far more concentrated to neutralize, but as long as you use the prepared solution by the teacher, you should be alright.

On the other hand, I think you will find the electrochemistry experiment far more interesting. (I am old now, so forgive me if I do not understand. I figure you are under 20.) Is it really important whether you get a 20/20 rather than say a 19/20 or 18/20. Maybe you can impress the chemistry teacher and get a really good letter of recommendation if you go far the harder experiment. Maybe your instructor will be more impressed and more easily grade the harder experiment. Of course, I cannot even be sure the gavanic cell is the harder experiment. The question really should be in which experiment will you learn more from.

PS, I found titration (in eleventh grade) as stock and trade for a practicing chemist, but I will never forget the excitement I got from electroplating a nail, (in fifth grade), although clearly, your chemistry class will be more advanced than that fifth grade experiment, which did not even require a write-up.
 
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