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Why am I so stupid?

I had a chem coursework task involving enthalpy change and instead of using the 25cm3 of the acid as the mass (in q=mcdeltat equation) I used the difference in mass of the solution calculated after the reaction. I feel like ****, I'm clearly so thick! Goodbye a grade

rant over.
You're meant to use the solution


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Reply 2
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Lularose83
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Original post by xoflower
You're meant to use the solution


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What do you mean?
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Lularose83
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Original post by xoflower
You're meant to use the solution


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But I thought you had to use the 25m3 (mass) of the acid as if it were water?
I think I used the same value you used and I think it's the right one because I only dropped one mark in this part of the coursework (assuming this is the OCR AS quantitative task).
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mismash
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is this ocr b saltars course work?
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Lularose83
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Original post by EastGuava
I think I used the same value you used and I think it's the right one because I only dropped one mark in this part of the coursework (assuming this is the OCR AS quantitative task).



So you didn't use the 25cm3? Well done on your mark btw! :smile:
Original post by Lularose83
So you didn't use the 25cm3? Well done on your mark btw! :smile:

Yup. :smile:
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Lularose83
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Original post by EastGuava
Yup. :smile:


I guess there's some hope then! :smile:
Original post by Lularose83
I guess there's some hope then! :smile:


You'll do fine! This caused a bit of confusion between everyone at my school as well, but most people said they used the value that they calculated.
Original post by EastGuava
You'll do fine! This caused a bit of confusion between everyone at my school as well, but most people said they used the value that they calculated.



Aww thank you! :smile:

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