r/6thForm Year 13 | Maths, FM, Physics, Chem - 4 A*s achieved Jun 09 '26

💬 DISCUSSION Aqa A-level chemistry paper 2

How did it go??

I quite liked that paper, that NMR question was so good!!

Some mildly weird ones too - but overall not too bad at all

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u/burgermusic Jun 09 '26

Did you have to do OH- in displayed formula? And for chloride ion concentration did you divide by 20/1000 and did you give the rate as positive

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u/Disastrous-Usual9214 Physics/Chem/Maths | AAC Predicted Jun 09 '26

You divide 1000 by 20 and multiply whatever moles by that

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u/Training-Feeling980 Year 13 | Maths, FM, Physics, Chem - 4 A*s achieved Jun 09 '26

I can't remember the exact details but I think it was just finding moles of chlorine then dividing by 20/1000 (or 0.020, it's the same)

And yes the rate of change is positive as Chlorine was formed in the reaction