GCSE Chemistry Revision "Relative Formula Mass"

[@eris7201]

Im not exaggerating when i say this man saved my life

[@Unicorntoast0]

I legit just watched his videos so MANY times I got a band 8

[@bismahakhtar8376]

Same

[@rac3502]

What were u gonna die? No? Ok he didn’t save your life. It’s a metaphor so why did you say that you weren’t exaggerating!

[@unknownbaby2918]

@@Unicorntoast0 when you say 'band' do you mean by grade?

[@lilyz9108]

fr

[@user-my8hi6wf7d]

I honestly wouldn't be surprised if a chemical engineer told me that they didn't go to school and learnt everything from him. Honestly, not even the entire chemistry department could teach anything as well as he does!

[@smedhanie1219]

that is literally what i did for my mocks because i missed some of the year but i still ended up getting a grade 8 because of these videos

[@YourBoiMango]

His type of explaining is straight forward which makes it super easy to get and understand, mans a legend

[@valeveira]

Dude you're saving my life

[@unknownbeach7692]

This guy saved me exam in 4 mins. Kudos

[@user-yu4rs9nt3n]

who disliked?????? like if you think that this guy should win a million dollars

[@MrDylanButton]

420 like

[@musashaukat2036]

His lil smiles at the end are so cute

[@flamingworldz7663]

ikrrr!

[@beta_nx9341]

Was majorly stressing out over my mocks coming up soon this guy is a legend

[@gekotuneyuka]

This dude literally saved my quarantine life. Thanks bud :)

[@Alyjx-ug6ev]

He explains it so much better than my teachers

[@labskan5334]

Sir, you are the reason I have confidence in lessons!

[@lilipsalm8656]

aww God bless you!!

[@suvana107]

U teach so much better than any science teacher in my school u taught me this in less than 6 minutes while it takes teachers a whole hour

[@uzmahusaini9611]

Less than 12 hours to the chemistry exam lol who else is cramming his videos in one night

[@survivingwherever5045]

Yeah me to

[@fish2147]

How did it go

[@assasin5143]

Yup 😅

[@scopeawl]

12 hours? I have 4 minutes

[@Aspect1098-y6o]

me fr

[@ljanrr]

when I tell you than I searched the wide web to find out if you use the big numbers when calculating the mr I MEAN IT! This champ made it super clear that you dont!!!!!! I LOVE THIS GUYYY

[@henryhunter1773]

That was so clear and simple to understand! Great video as always!

[@favemusic1191]

I want to say thanks to this guy. With these videos, I have gone from achieving grades 4-5 in my November mocks to grades 7-7 in my February mock so thank you :)

[@dariusozakpolor2215]

another year of this man saving gcses, this man is God sent

[@codpro7880]

So far the best video I've found. Thanks

[@elliemae201]

i’m in zoom rn and i’m too scared to say i don’t understand so thankyou😭

[@Celeste_51]

I get you I had to put in chat I didn’t get it and I felt so awkward and embarrassed I’m never doing that again lol

[@malaekaahmed2250]

I swear he just makes life so much easier.

[@evelynstringer5697]

These videos are saving my life during lock down :)

[@longgrainrice401]

literally saving my gcses... i went from a U to a 6-6 and now working at 8s

[@willcussins5018]

I wanted to put all my thanks to this guy the night before gcse but unfortunately I can’t but I can thank him for helping me with the rebision

[@favemusic1191]

I want to say thanks to this guy. I have gone from grades 4-5 to grades 7-7 in my mocks, in the span of 3 months so thank you

[@zainabscuisine4269]

U really save my life ... Tomorrow is my assessment....

[@eslamonthevlog]

so how did u do that time

[@yahyabokhari4201]

give this man a noble award

[@jdm_hokage7861]

If I ever see you in person imma thank you u help a lot peeps

[@abdiali5461]

greatest of all time.

[@hassanpakarachie8728]

This man made my life soooooo easy the night before exam 😂 he is a real G

[@wafiasadika9679]

THIS VIDEO LIGIT SAVED MY LIFE!! thank u n keep making vids to save our student life👍👍👍

[@ck_lemon183]

i have a confession to make.... i s1mp for freesciencelessons man liderally saving all our lives out here we all love and appreciate you man

[@nanalovesstrawberries]

...?

[@zarazoyalegoworld]

@nanalovesstrawberries she thinks he’s fine

[@Ihasnolifeu1]

This guy helped with my revision for my upcoming chem test kudos to him

[@TheTrollingKoala]

Why don't we count the big number?

[@ne14abj78]

hello :)

[@tasninchowdhury8781]

@@ne14abj78 lol

[@joshnwobodo8958]

@@nominchoisuren lmao you were 3 years too late

[@georgieb7039]

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

[@edenb6961]

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

[@samirumair4548]

Thank you so much! I've got an A+ in my most recent exams!!!

[@manman1298]

This Guy's website is brilliant!! but does he only do 9-1 videos now cause I'm doing the science a*-g this year

[@Freesciencelessons]

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.

[@SMH_]

@@Freesciencelessons fr, "this guy?" smh the disrespect is mad

[@shush7287]

Got my exam today last period lol. You saved my life tho ngl

[@lottied5194]

These are so helpful!

[@zarabatool2509]

this is so helpful, thank u!!!

[@communist_oranges]

Here before a huge chemistry test. Pray for me!!

[@donkey392]

What did you get

[@user-my8hi6wf7d]

sameee

[@HSAClothingOfficial]

thank you so much you actually teach content really good i have my year 11 mocks at the end of november/beginning of decemeber and pmt notes arent good only good for past paper questions and your really good for content tysm bye

[@katiaxjaber]

Thank you so much, your videos are so helpful :)))

[@diyapatel-264]

this was so helpful thanks!

[@NissanSkylineRGTR-bq4xn]

Thanks this will really help me on my chemistry test

[@noyd9849]

this guy gon help me pass my gcses

[@lucymanley3742]

Is this your channel/company? or does a company hire you to speak in these videos?

[@Freesciencelessons]

It's my channel (and company). I'm the only person involved in making these videos.

[@lucymanley3742]

Freesciencelessons thanks for replying , I'm doing my GCSEs in the summer and you're videos are really helping me with my revision (obviously not learning this specification I just thought you would be more likely to respond on your latest video)

[@ipotatosenpai7002]

Your*

[@aleenhussain7649]

ipotatosenpai three years later

[@atriumgangsterz1939]

@@aleenhussain7649 lololololo

[@jamesward8881]

Thanks mate, appreciate it👍

[@professionalfangirl6865]

Ur doing Gods work

[@Hassan-xu8rn]

mate got me a 9-8 in combined science and i will be using his resources for biology a lvl and chem a lvl to get an a star

[@mscc2597]

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

[@manmeh4r]

yh he has revision workbooks LIKE HE SAID IN THE VIDEO but they are like 7 quid each

[@AceYT69]

@@manmeh4r 5 years too late

[@securitybreach5182]

@@AceYT69 4 motnhs and a bit too late

[@CaptainF123]

@@AceYT69 Nah bro was fashionably half a decade late.

[@KhalidKhan-kw5ln]

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?

[@manmeh4r]

if you are reading this good luck in your chemistry career/university

[@myaisheree]

​@@manmeh4r lol yess

[@ghofranhamish6233]

I love u soooooo much u re my angel now 😂😂😂❤️❤️

[@mateoam9882]

rahhhh dis is helping me bare... All science teachers cant teach for shit at my skl I got a U in my catch up exam but with bossman teaching me all this I feel like ill probably get at least a 5

[@mystic6970]

Thank you this was very helpful 👍

[@ryze5436]

Hi 👋

[@80knaj9]

I love both cognito and free science lessons but free science lessons explained this better

[@r0wen]

POV: ur doing ur chemistry exam tomorrow

[@timfarq]

Yh 😭

[@aveunallivx]

Really helpful explanation!

[@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?

[@Dark_Yhz]

he is so underrated

[@Salamannderr]

YES LESGOO FINALY UNDERSTOOD

[@shirinhe55ar89]

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

[@emilyjones3047]

I actually love u so much

[@FireFitt]

You teach soooo well

[@aliyah3438]

2:23 why is it 16 and not 12+16

[@haleemaakhtar7479]

Aleyahsworld because your adding 12 and 4 because you add the carbon and hydrogen together

[@9wizox-Azzah]

Long time ago

[@caitlinwright2221]

have a science test tomorrow, hoping this will work!!

[@warmachine0962]

THANKS MAN YOU HELPED MY FRIEND AND I

[@NK-ws7fj]

This guy is a certified G

[@MikeHunt420]

do we need to memorise the relative formula mass? thanks

[@spartanspy1263]

This guy is brilliant

[@muzhirasadeek6431]

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

[@ylaunch]

I am meant to be doing Chemistry revision but this one player keeps kicking my ass........ :((

[@yoditabbay706]

OfficiallyTom shame it's really simple

[@gunzbl4z1ng57]

I remember when this was a meme

[@lewisroach8292]

Is it the legend 27?

[@solf9463]

why is big numbers never involved becuase im so confused about that and its affecting most of my calculations now . please can you reply asap

[@Freesciencelessons]

Because a big number changes the number of MOLECULES. We are looking at the atoms in one molecule only.

[@puppy842]

This really helped thank you

[@FireFitt]

i have never disliked your videos, i like them

[@sm_uadib]

Hello, I really appreciate all these videos they've totally saved me in chemistry. When you say that we will always be given the relative atomic masses we need, does that still apply nowadays for gcses in 2025? Thank you!

[@Freesciencelessons]

Thanks for the comment. Yes that still applies for 2025.

[@lamiyakhokon890]

do we have to memorise the definition of relative formula mass?

[@jules4738]

i am

[@fireemperorzuko8756]

I'm guessing yes

[@vigilantclips5912]

Chemistry exam tommorow!!!!!!

[@jana0558]

Do you use the big numbers when dealing with atom economy?

[@Freesciencelessons]

Yes definitely.

[@jakedabbs7163]

Do you know why you do in atom economy but not here? Because i watched this video and he said not include big number but in his atom economy video he said to

[@jakedabbs7163]

@@Freesciencelessons Hi, how come you do in atom economy but not here

[@kristofimre2631]

You absolute hero x

[@1absss]

What are you going to do after you published all your videos and workbook.

[@Freesciencelessons]

Good question. I want to make certain that everything also applies to iGCSE as I have a lot of students outside of the UK who use my videos. And I also want to get going with A levels.

[@yusrasheikh8330]

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

[@Freesciencelessons]

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

[@simranjeetsingh6879]

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?

[@2bitkk]

Could you make an online workbook?

[@hamzamahmoud6146]

THANK YOU THANK YOU THANK YOU SO MUCH

[@anonymousog9608]

So is 1 mole of methane 16g?

[@freyabradshaw2186]

you’re an angel

[@zm7444]

Hey sir do you have to learn the definition??

[@owenmartin-lynch6196]

you just saved my arse. cheers mate

[@ym276]

Could someone pls tell me why you don't use the multiplier number when working out relative formula mass

[@Freesciencelessons]

Relative formula mass applies to only one molecule. That is why we don't use multiplier numbers as that would be more than one molecule.

[@ym276]

@@Freesciencelessons thank you

[@jakedabbs7163]

@@Freesciencelessons how come you do in your video on atom economy?

[@Freesciencelessons]

Hi. Sorry for the late reply. Relative formula mass always refers to ONE molecule so we never count large numbers. However, in atom economy, we are working out what percentage of the atoms we put in go to the products. So in this case, we need to count the large numbers because that shows what we are putting in and what ends up in products.

[@jakedabbs7163]

@@Freesciencelessons thanks for the reply, your vids have saved my science grades.

[@nerd_yboi8771]

Our hero and savior..

[@lilystanley8270]

I GET IT NOW

[@Laura-bj5zy]

Does Mr ( mole) come up in the 2017 exams ?

[@Freesciencelessons]

Yes, you can expect it. If you're doing higher, there will probably be a big question on it.

[@Laura-bj5zy]

Thank you very much for the reply, very useful videos!

[@aquibtrading3477]

Thank u very much for your help

[@jodiedavies6439]

Is relative molecular mass the same as relative formula mass??

[@charlieness3781]

I’m not exaggerating when I say I’m revising this 10 minutes before my gcse

[@kimamira7179]

I am an IGCSE student but not in Uk. After finishing my year 11,is it possible to go to the college direcly without doing the A-levels? Please reply,I wanna know. And thank you so much for your videos, its really a great help! :')

[@Freesciencelessons]

In the UK there are two main options after GCSE. 1. You can stay at the same school after GCSEs to do A levels (or other courses), as long as your school does them. 2. You can go to a sixth form college (which only does courses for 16-19 year olds eg A levels etc). Generally almost everyone who then goes to university (I'm wondering if you mean university when you say college) will have done A levels. However, there are some people who go to university with GCSEs but they usually do an access course where they spend an extra year studying (I don't really know much about that route I'm afraid). Has that answered your question?

[@kimamira7179]

@@Freesciencelessons Yes. Sorry I meant unviersity.Thank you for replying fast,and d yes you answered my question. Thankyou again xx

[@akshatkumar1684]

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'.

[@spartanfromgreece7490]

U deserve a like plus subscribe

[@leahlewis5228]

OMG I GET IT I GET IT THANK U SO MUCH

[@wahhaj1872]

sir how come there isnt a video on how to calculate percentage mass of an element in a compound

[@Freesciencelessons]

It's not in the AQA spec but I will be making a video on that soon.