GCSE Chemistry Revision "Relative Formula Mass"

GCSE workbooks www.amazon.co.uk/Dr-Shaun-Don...
School licenses from 40p per copy www.freesciencelessons.co.uk/...
In this video, we take a look at a really important topic in Chemistry which is relative formula mass. It's not that difficult to calculate (apart from a couple of pit-falls, which I show you in this video) but it is critically important for our understanding of quantitative chemistry.
This video is based on the AQA spec. If you are following a different exam board then you should check your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks.

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Why do you not use big numbers for relative formula mass?

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because it means there is two molecules and you want to find the relative formula mass of only one molecule so you get rid of the big number (eg the two) and find the relative formula mass of the molecule itself

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Hi there from "this guy". Thanks for the comment. You will find that I've done videos covering every single topic for the A*-G spec (well over 250 videos). Check out the playlists and you'll find them all. Also, on my website (freesciencelessons.co.uk) you'll find revision cards covering what you need as well.

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do we need to memorise the relative formula mass? thanks

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Hey Sir, I had a very good question for you. My question is that we see normal calculations from your video. But there is no actual way you can practice. Do you have like an ebook in which you can go through and practice your weakness topics and also there isn't past papers which you can use. I agree that by watching you can learn quicker but it will last short term. So can you do something that makes the student practice topics of weaknesses. Other than that I love this channel. Thank You

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[@anonymousog9608]

Sorry, but I don't understand why 2 moles of the same thing would have the same Relative Formula Mass as one mole of methane, can please explain?

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man this is so easy when he puts it like that, but when i look at the dense block of information in my textbook my mind suddenly goes blank

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Hey sir do you have to learn the definition??

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Sir i gave my A levels exam today,and they asked the definition of relative formula mass,what do you think is an appropriate definition?

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In my revision guide, it gives me a formula to learn for percentage mass of an element in a compound. Do I need to learn it?

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Is Relative Formula Mass different from Formula Unit Mass ? If No then I have read that they have unit named unified mass or simply 'u'.

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So is 1 mole of methane 16g?

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is this including ocr?

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Hi Sir, I have never understood relative formula mass but thanks to you I fully understand it! Thank you soo much!

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Sir , did you made a video for relative atomic mass ? I can't find it :(

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Look in the quantitative chemistry playlist and you'll find it.

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