HELPPP Doing a writeup on Sodium thiosulfate and hydrochloric acid Watch

DangIt
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This is for our lab books, so it should match a controlled assessment (science) format, anyone have any tips and points to include for the highest grade possible?
ALSO, my instruction sheet said 'do not exceed 55 degrees'- as we are looking at how temperature affects the rate of reaction... So why can't we exceed 55 degrees? I need to include this- my teacher said!

Anyways, Thanks in advance!!
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lizardlizard
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Assuming you're doing this for A-level chemistry, practical scores are a pass/fail and there is no high or low grade in it. As long as you have the necessary information and you can do the actual practical well you should pass fine.

If you look at the equation of this reaction, you can see that it will produce SO2, which is generally a bad thing! Having a temperature above 55 will increase the rate of reaction a lot, procuding a lot of SO2. There is really no reason why in practice you couldn't use temperatures above 55, but it just wouldn't be safe to do in a school/college lab due to the fumes of SO2 produced.
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DangIt
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(Original post by lizardlizard)
Assuming you're doing this for A-level chemistry, practical scores are a pass/fail and there is no high or low grade in it. As long as you have the necessary information and you can do the actual practical well you should pass fine.

If you look at the equation of this reaction, you can see that it will produce SO2, which is generally a bad thing! Having a temperature above 55 will increase the rate of reaction a lot, procuding a lot of SO2. There is really no reason why in practice you couldn't use temperatures above 55, but it just wouldn't be safe to do in a school/college lab due to the fumes of SO2 produced.
Oh, thank you so much! Yeah, I am doing A level chemistry, but I just wanted to make sure it scored a good enough score to be a definite pass, if you know what I mean?
But, thanks anyways!
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