Remember this? A practical exam all set up and ready to go! What was it like?
Mr Eve
Welcome to Marlborough Chemists
This Blog is intended for students that are learning AS and A2 Chemistry at Marlborough School.
Information will be posted on this blog to help you with your learning, including syllabus and learning objectives, home learning tasks, suggested reading materials and useful links to secondary sites.
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Mr Eve
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4 comments:
I thought it was good, it really wasn't hard to follow the instructions and carry out the practical. The one thing i dislike about titration is that people's color perception is different so your,(Mr Eve),perception of what is blue could be different from what i think is blue, so results could be innacurate from this.
How dark a blue were they looking for?
How would you carry out the practical if you were color blind?
Andy
Andy,
This is a good question and sometimes one of the things that needs to be considered when selecting an indicator. Usually the end point is measured when there is a distinct colour change so just when it turned blue in the case of our practical. Colour perception a colour blindness may indeed play a part. Are there machines that can do this for us?
Mr Eve
The practical exam was the hardest exam i have ever sat! :D the actual practical was ok but i mucked all the calculations up..i think i just need more practice.
The fun paper, i feel exactly like suz on this one, the practical was all good, it was da paper that we got with it. even though weve learnt moles about a million times, its just wen to use the right equations confuse me!
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