Relative Atomic Mass | Properties of Matter | Chemistry | FuseSchool

[@eikaykhinekyaw1073]

I love how that put notes to remember at the end. It's super helpful.

[@patrickmerkel2499]

This is supposed to be the updated video (they published an older video on the same topic), but the only difference I see is the addition of an intro in the beginning. Not very much of an updated video in my opinion. This video still has the same problem as the last one: it never explains the relation of atomic mass to the atom carbon-12. This left me more confused after the video than before. Here is the answer: The mass of the element carbon can be measured very accurately (more accurately than any other easily-obtained element), and so was set as the standard for atomic mass with a mass of 12. The particular isotope carbon-12 was chosen because it is the most abundant isotope and 12 is also a very nice number to work with. Therefore, one atomic mass unit (amu) is defined as 1/12 the mass of a carbon-12 atom. Protons and neutrons each have a mass of 1 amu. Electrons are so small they are said to be weightless. So yes, atomic mass is based on the carbon-12 atom, but atomic mass is almost always referred to in amu. It would be pointless to say the atomic mass of chlorine is 35.5 times 1/12 the weight of a carbon-12 atom. You would just say it is 35.5 amu. The fact that the 35.5 is related to carbon-12 is implied. Hope this helps!

[@fuseschool]

Thank you :)

[@hannahsandhu4520]

Really helpful explanation, just what I was looking for, thanks!

[@AbdullahiMohamud-or1fr]

Thanks for your clear explanation. You deserve a big thumb. Well done and keep it up.

[@lecapitalist]

firstly, how do you find the abundance% ??????? and thank you for explaining in a simple slow way

[@haz2022]

Good video! Straight to point, I just wanted to see the calculation which you explained very nicely!

[@shiromalfernando9380]

How do you find the abundance%? Pls tell me, I need it for next weeks exam.

[@salt5434]

how was your exam?

[@mirajmiraj2610]

Thats amazing because of u i have got 74 out of 75 in my mid term exam

[@fuseschool]

Great! Glad it helped :)

[@aliyahkhan2425]

what if it was a different element i.e: not chlorine how would we be expected to know how much of a percentage of an atom lets say zinc was? or would we be given the percentage?

[@hlpgray8772]

you're always given it in an exam

[@fahemarahman384]

Yellowyall Harry we get it given

[@prince01336]

Then, we must have abundance data of it. Or if it is a kind of question which comes in exam, then it must be given.

[@maryammaryam7895]

thank you exactly what i needed to know

[@fuseschool]

Glad to hear that!

[@sushantsinghrajputkavascg7382]

Really the best explanation if you watch the full vedio i enjoyed as well

[@fuseschool]

Cool! Thank you :)

[@LiquidCandy]

i dont get the carbon bullkaka???!!!

[@colletteikeanyibe1487]

What's the difference between mass number and relative atomic mass

[@sampanbansal2001]

This is such a great video!

[@fuseschool]

Thank you!

[@malaikamalaika9238]

Thanks for the video it helped me alot!

[@sumaiyatasnim829]

You always know how to make complex stuffs simplified.

[@fuseschool]

Thank you :)

[@tokagamal3777]

great 👍

[@m-pretzel1755]

so does 1 atom of chlorine have a mass of 35.5 grams?

[@solomanneil]

35.5 grams? You mean "Does it have the Atomic Mass of 35.5"? It does not. It's only an average of all the different types of chlorine atoms.

[@kaderkhanthilibaniskilled5240]

How do you know the % of the chlorine

[@loay_7942]

thanks!!

[@aliyak9015]

Really good

[@fuseschool]

Thanks!

[@kenzimohamed4565]

How did u get the number of atom present ?! Please I need the answer I’m IGCSE student

[@demiadewole7203]

did you pass your exam bro?

[@totonbiswas1416]

Its just a guess. & it will be there in the exam

[@carolineharden5359]

This was really helpful, thank yoy

[@fuseschool]

Thanks! Glad to hear it helped!

[@milkyrox380]

Thanks this video helped me a lot! I just wanted to ask that is the relative atomic mass and the relative mass the same?

[@fuseschool]

What part of the video is the relative mass mentioned? Just so I can be clear on what was meant. I expect it did mean the relative atomic mass but there is a chance it could have meant the relative molecular mass.

[@noralimohamed3185]

Thank u

[@fuseschool]

:)

[@المسترعبدالرحمن-ص9ث]

Good

[@milesmcmillan1247]

Carry me to a 1 in GCSE

[@aliusman5841]

Why the fuck do they compare this simple shit with carbon-12?

[@szaib2949]

THnX aLoT :D

[@fuseschool]

No problem!

[@toolng1798]

so at school it was 20 minutes of not understanding and here in 3 min I got it lol

[@fuseschool]

That's great!

[@solomanneil]

@@fuseschool Great that Too Ing now understands. Not great that Too Ing and probably the entire class did not understand after it was taught. Love your videos!

[@fuseschool]

Thanks, Neil!

[@jafar_alshmmeri]

Good vid but needs more examples

[@Warp-zu2zk]

fuse the hostage

[@souravsir589]

👌

[@fuseschool]

:)

[@mulekebede3707]

Easy and clear, thanks !

[@fuseschool]

Thank you!

[@henryboateng2254]

the plug

[@jessicaonyemachi7762]

is this GCSE level or A level

[@fuseschool]

You need to know it for both.

[@mohammedizat5389]

nice

[@ifrah392]

If u can speak a little slower it would help and can u kindly explain it better. It didn't even help. This wont help beginner"s like me.

[@fuseschool]

Sorry to hear that!

[@jaysbff3628]

do you have a book? i suggest you read your book's lesson on this first before watching a video, afterwards, videos like these are much easier to understand

[@nopenotatall397]

You had a really boring voice and I'm sorry I kind of know that's a little basic but I couldn't concentrate. The video was well informing though, and it helped.

[@fuseschool]

Glad it helped!

[@Chemist.AbdelazizEid]

nice