EVERY Amount of Substance Equation You NEED To Know｜A Level Chemistry (AQA)
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- เผยแพร่เมื่อ 25 เม.ย. 2022
- This video is a breakdown of the equations you should know for the A Level Chemistry Amount of substance topic 3.1.2 for the AQA exam board. This is more of a revision video so be sure to do lots of past paper questions! It includes moles, mass, molar mass (Mr), concentration, volume, mass concentration, ideal gas PV=nRT, mass concentration, dilutions, percentage yield and percentage atom economy.
I go through the the equations themselves and their units, and give some extra information/explanations that I find relevant.
Be sure to like the video and subscribe, it really helps the channel grow ❤
#chemistry #alevels #AQA #exams #amountofsubstance
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Allery chemistry and Eliot rintoul are helpful
Cognitive now have a level content
Thanks man, good recap before the exam ❤️
Good luck man :)
This is so helpful!
Happy to help :)
THANK YOU
why have I only just found you 😩exams in 3 weeks .. need an A for medicine yet I only keep getting D
You've got this! Don't give up 😁
what did u get?
My AS is in 3 days lol i need to get D to stay on the course 😭
should coefficient be included in atom economy equations or not?
Yes! Sorry that I didn't mention this. Due to the equation involving 'mass' rather than 'Mr', we essentially need to use the equation m=nxMr and then just assume the moles = the molar coefficient. for example, 2CH3OH in an equation will have a mass of (2 x 32) grams. Hope that clears things up! :)
I think u forgot density = mass/ volume
Well spotted! I meant to include this in the mass concentration part of the video since it's the same equation (density = mass/vol.) but forgot, sorry about that! Do keep it in mind for your exam :)
can this apply to ocr b?
It should do yeah :) the maths doesn't change across exam boards. Do some past paper amount of substance questions from OCRB to be sure
@@easymodeexams33 thank you very much!
boring voice - so students did not retain attention to the video. Disappointing
The analytics beg to differ... Are you a teacher or a student?
Completely disagree 😂 easymodeexams is one of the few TH-camrs who I can actually pay attention to
@@ar-mo7xc much love
@@easymodeexams33 ignore that hater. You've been probably my favourite youtuber when it comes to explaining A Level Chemistry.
Just because you wanna hear Mr Beast screaming and your attention span is cooked doesnt mean its the same for the rest of us.