Quantitative Chemistry (Moles) - Chemistry GCSE (old version)

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00:00 Moles, Avogadro's constant & relative mass
06:30 Worked example 1
07:34 Worked example 2 -
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Опубликовано:

9 июл 2024

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Комментарии : 152

@lilygarnett5073 5 лет назад

Really helpful. Couldn't understand moles at all but now I can happily battle through them. Great light hearted video and love the layout too.

@MariadzLopez 5 лет назад

Why haven’t I discovered this video sooner! God bless youuuuu I literally understood everything 😂

@laibakhan3843 5 лет назад

I FINALLY UNDERSTAND!!! THANK YOU!!!

@louisehunt3789 5 лет назад

oh my gosh where has this been my whole life?!

@exooppa769 6 лет назад

THANK YOU SO MUCH LIKE YOU'VE SAVED MY LIFE FOR TOMORROW

@originalsoundtracks5263 5 лет назад

omgg same

@thatoom1892 3 года назад

@TempoRyZe same.😂😭

@Midhuns_World.. Год назад

Well same , after 4 years

@73624. Год назад

Well same after 5 years

@SuperMarine-uk2wp Год назад

got my gcse chem mock tomorrow, this explained it better in 12 minutes than many hours of lessons dedicated to moles. thanks!

@Jak-ub3ds 5 лет назад

Surprised this only has 10k views, very helpful

@Yurmum55 Год назад

Got the exam tomorrow., thank you !!

@lichh64 6 лет назад

I wish you were my teacher!

@murugesusivakumar2506 4 года назад

Thank you so much, this was so helpful for my revision. I will definitely remember the formula for moles because of the grams rams thing.

@sx4fa 2 года назад

i'm going to cry. thank you so much. i've never understood this even though ive gotten all my teachers to explain it - but you've just helped me so much. you're amazing. thank you!!!!

@jawatu6326 2 года назад

Good luck for tommorow

@sx4fa 2 года назад

@@jawatu6326 thank you! you too. :)

@jawatu6326 2 года назад

@@sx4fa are you ready?

@FloralhattieX 5 лет назад

Revision=done for my chemistry GcSE tommorow- never understood this In class thank you ❤️❤️

@claraishungry501 3 года назад

how did it gooo

@ronthebear6656 5 лет назад

Thanks for a clear explanation. Finally I get this

@radiyahhh 5 лет назад

THANK YOU SOOOO MUCH explained it so so so well!!

@transgrl 5 лет назад

Thanks! I understand it now, actually feels easy aswell now!

@orlawatson6916 5 лет назад

This was great thank you sooo much!

@aurignyfrench9780 2 года назад

This video is amazing! Now I feel much more confident going into my test tomorrow!!! Would reccomend to anyone struggling with moles and mass etc!

@vanila6923 2 года назад

im so glad i found your youtube channel because you have helped me out so much!!! thank you!!

@allisony.8718 2 года назад

Brilliant video for me, as a self study student. Although the guys is like story telling and his presentation isn't like textbook, this video just helps me remember by understanding and I don't have to just cram the calculation methods into my head

@softandsticky8438 Год назад

i have my chemistry gcse in 2 hours and your videos have helped me so much the last few days, thank you so much

@archiehickling7311 5 лет назад

This really helped, thank you so much

@user-rx6kg3yl9v Год назад

Thank you so much, I have a mock tomorrow and this has really helped me out!

@secretcoffeeaddict9437 4 года назад

this video made this topic so much easier to understand!!

@nikazain6498 5 лет назад

Thank you sooo much🙏❤️

@rudythorns8411 5 лет назад

i was really thankful for ths vid thanks ! :)

@maxwellman7192 2 года назад

really good video, helped me understand moles and the whole idea pretty clearly

@upasnakarthik5778 4 года назад

Thank you sooooo much for this video. A real LIFE SAVER.. sending love 💕💕

@happypants6150 5 лет назад

Thank you!!!! you are so much better than my teacher!

@NM14825 3 года назад

thankyou reall y helped with my understanding of this i watched other videos but they were really complicated :)

@katiemcmanus5842 5 лет назад

Best science videos ever ! Free science lessons has nothing on this

@HeisenburgJehangiri Год назад

Helped me a lot. Thanks!!!

@thebestisyettocome1308 Год назад

Thank you so much this was so helpful!!!

@woosy4766 5 лет назад

Im doing my double award chemistry gcse tomorrow and Im absolutely sh*tting myself and Im so thankful for your videos!

@woosy4766 2 года назад

@@ramez_357 C* bud

@ionamacmillan2347 5 лет назад

After being taught for years and not understanding one 12min video has got me sorted. Life saver for my exam!!!

@hardyultra32 3 года назад

You are simply amazing!!!

@ayethirah 4 года назад

your videos are so helpful❤️

@sasasasa- 2 года назад

THANK YOUUU MY TEACHER TAUGHT IT TOO FAST AND I GOT CONFUSED WATCHING THIS MADE IT CLEARER

@muzammilshiraazi5363 3 года назад

Thank you so much for helping me out

@nevermind4278 5 лет назад

OMG thanx u saved my life for my chemistry test tomorrow. 😊😊😊

@kaydincathey 3 года назад

Very helpful, sir! And your accent is awesome!👍😄

@Hypermuseic-vr3zk 2 года назад

Thanks you for this!!

@YES-nn1rg 2 года назад

Truly YOU are the besttttttttt❤❤❤❤❤

@oyehoyesyaapa 5 лет назад

Thank you, thank you ever so much

@AmayaW3 5 лет назад

Very helpful!!!!!!!!!!!!!!

@JD-nl7mf 3 года назад

3:18 I thought relative formula mass was for ionic compounds?

@_._790 2 года назад

Hello, can you explain the non-directional of ionic bonds and directional of covalent bonds please? I don't understand this logic, thanks a lot!

@iamthebystander1937 Год назад

Thanks a lot for this,got a test tomorrow and I forgot how to do quantitative chemistry

@shariksh229 3 года назад

You are a Great teacher

@sforstunner 4 года назад

this was great!

@aldanyiu4352 5 лет назад

Thank you.... really bad at doing moles before

@ashfaqunnaharnila4845 3 года назад

THANK YOU!

@haileighcurtis7913 5 лет назад

very clarifying

@anthoniamills 4 года назад

New subscribers honestly I didn’t understand it and I hv Test Tomo but now I do thanks so much 💞🎉

@ScienceShorts 4 года назад

All the best for it!

@advaybandaram4027 2 года назад

bro ur the best

@fishmcfish3850 5 лет назад

Thank Jeebus someone can explain it in English. My chemistry teacher has been off for 4 months and supply teachers aren't very good at teaching.

@whoskiloo 5 лет назад

Better Than RU-vidr primrose kitten by far

@ScienceShorts 5 лет назад

High praise! 😊

@avarose7556 Год назад

I learnt more from this than my actual chemistry lessons in school

@na_148 Год назад

Thanks❤️

@slix5953 Год назад

at 3:39, why did you do oxygen twice? isn't it diatomic or is that not related to it?

@logandowie2129 3 года назад

Very good vid mate c

@yxuzii5288 4 года назад

ty professor

@Lyricfact0ry2.0 2 года назад

My exam i tmmrw and u hv saved me

@Bumbleboobeee Год назад

life savior ong

@tiarnanmckeever7945 4 года назад

thank you man i didn’t understand this

@nesrinahmed2069 4 года назад

Wowwww better than my teacher Can you cover igcse grade 9 chemistry

@kirollosromany8422 Год назад

thanks man

@ZhDKarma 5 лет назад

Thanks

@azkieran3030 6 лет назад

this is hard bur you expladed it well

@itsalex1010 5 лет назад

yh he "expladed" it rllly well

@Unknown-wi8yv 5 лет назад

r/ihadastroke

@oliviahyde476 5 лет назад

more examples of moles at the end plz

@jamesthejoker7415 2 года назад

Just a small query, for the last bit when we calculate the mass of Iron using the mole ratio, would the RAM not be 112 instead of 56 because on the formula it says “2Fe” so would you not multiply 56 by 2?

@hellobroskiwhatsgood Год назад

sorry this is so late BUT noooo! as basically you would only multiply by 2 if it is the subscript (e.g Fe2) hope that helps :) the reasoning is that some elements are di-atomic meaning they come in pairs of two for (as the prefix 'di' suggests) for example O2, and this is their original form as they do not have a full outer shell by nature and therefore form covalent bonds with another atom of themselves to get to one - oxygen is in group 6 meaning 6 outer shell electrons which makes sense as they would form one covalent bond meaning they share a pair of electrons, this in turn gives them 8. However other elements may not be di-atomic by nature so you are changing their properties by multiplying them by 2. You can however use the multiple in front to determine how many moles you have of each substance for instance if you have the equation 2Fe + 3O you would have a molar ratio of 2:3 you can use this to later discover the limiting reactant, so the one that is consumed first in the reaction, and limits the reaction when it is consumed. Once again hope this helped! sorry it is so long and late!!

@arfanrahman8040 3 года назад

Great!

@amandanorman324 3 года назад

This really made sense to me thank you and a great way to remember the calculations. I used the method for an AQA GCSE practice question but it seems they didn't use the balanced equation given in the question but the unbalanced equation. I'm confused now.....is it different for different courses?

@noelle4145 3 года назад

I think you need to balance the equation yourself, in some situations they won’t give it to you balanced.

@musicchannel3525 3 года назад

@@noelle4145 thank you

@pantherplayz8390 2 года назад

I know

@aoifesalamone9302 2 года назад

i love this BUT HE WROTE IN BLACK SHARPIE ON A WHITEBOARD??? THAT DOESNT RUB OFF apart from that very helpful

@ScienceShorts 2 года назад

It's paper, dude.

@ShadowX_491 3 года назад

I unfortunately didn’t understand the last bit Like the 2nd worked ex after the part where you got moles of the reactant Could you somehow make the explanation a bit simpler

@ExertGames 6 лет назад

Can u do medical physics a2 aqa?

@ScienceShorts 6 лет назад

I'm sorry mate, not until at least next year.

@oliviak8081 5 лет назад

i think you rounded moles of iron (iii) oxide form 1.875 to 1.88 and that changed the result because i didn't and in the end i got 210 tonnes not 211

@originalsoundtracks5263 5 лет назад

there will be a range

@PianoScenesMoviesandSeries 5 лет назад

1:15 Why did you use a dot for the first multiplication but an X for the second? Shouldn't it always be a dot in chemistry and physics?

@randomguy4488 5 лет назад

its a decimal place, dots are never used as a multiplication symbol in the UK

@niliniri1835 5 лет назад

Thank you,next

@tanishka7470 3 года назад

hey, can you plsssss make a video on stoichiometry as soon as you can since my exams are near and i dont know anything

@ScienceShorts 3 года назад

Stoichiometry is just the ratio of one reactant/product to another 😊

@tanishka7470 3 года назад

@@ScienceShorts oohhh. Thanks

@jensonstretch971 Год назад

S tier content

@frogtears 2 года назад

watching on the bus on the way to my chemistry gcse 😭😭

@coolfred9083 5 лет назад

#protons

@sansamman4619 6 лет назад

10:58 , we had ( Fe2 ) in the reactant then, we had ( 2Fe ) in the product, doesn't that make a difference? { I didn't even know what computational chemistry was, this is my introduction to it. So, forgive me if this is a silly question... )

@sourmango4760 5 лет назад

in the case of balancing equations it does not make a difference as the no. of Fe going in is the same as the number of Fe going out. Also dont ever ask for an apology if you want to know something everyone had to start somewhere

@itsalex1010 5 лет назад

@@sourmango4760 u seem like a nice guy

@Unknown-wi8yv 5 лет назад

San Samman there is no such thing as a stupid question

@iconichisoka7642 3 года назад

this tutorial ate 👁

@najmzmohamed668 4 года назад

thanks

@ScienceShorts 4 года назад

You're welcome!

@ayethirah 5 лет назад

THANK YOU i hope this will help me pass my chem exam tmr

@aequaria 5 лет назад

Good luck for chem

@orlawatson6916 5 лет назад

Please can you do Titration calc Neutralisation calc Gases and solutions calc Atom economy % yield

@ScienceShorts 5 лет назад

Definitely!

@aizanadeem963 5 лет назад

Yes please real quick no time

@johnmccabe5761 5 лет назад

I thought 2Fe and Fe2 both mean that there are 2 atoms of iron present? If so, your ‘ratio’ step wasn’t necessary.

@niliniri1835 5 лет назад

but seriously,thank you

@nbsgamer6917 5 лет назад

isn't there a simpler way. I just did iron relative mass times 2 and divided it by the relative atomic mass of the Iron oxide and times it by 300 and I got 210 g

@ScienceShorts 5 лет назад

Congrats - you found the speedrun strat. Not everybody can deal.

@lichh64 6 лет назад

To be honest I don't have a problem studying this topic, but thank you because lots of my friends are struggling with it!.

@ZhDKarma 5 лет назад

hmmmmmmmmmmmmmmmmmmmmmmmmmm

@lollos3468 Год назад

@@ZhDKarma his search history would say otherwise

@josh3476 Год назад

@@lollos3468 it’s been 4 years bro

@lollos3468 Год назад

@@josh3476 ik lmfao just thought it wld be funny

@maryamsiddiqui5974 2 года назад

PLS DO A LEVEL CHEM VIDS 😭

@miam.g 4 года назад

8:09

@bushra.a665 3 года назад

8:56 why don't we need to know the carbon?

@danielmuzani7466 2 года назад

do u already know the reason?i want to know too :(

@enochcore 2 месяца назад

@@danielmuzani7466 late reply but its because the question does not involve carbon in it so its pointless

@danielmuzani1235 2 месяца назад

@@enochcoreblud im in college now

@tanishka7470 3 года назад

also i want to share your vids withEVERYONE I KNOW

@jc-1554 3 года назад

GRAMS OVER RAMS!!!!!!!!!!!!!!!!!!!!!

@nessysamp2094 5 лет назад

Legend I

@qanzii5949 5 лет назад

DARN.

@jelinsalin815 4 года назад

2020 students where u at??

@bushra.a665 3 года назад

2021

@Ben.A-Mella 5 лет назад

How is sodium 23?? And oxygen 16???

@chaosbeam6031 5 лет назад

What do you mean? If you go to any periodic table of elements you can find that oxygen ( "O" in group 7) has an atomic mass of 16 and sodium ("Na" in group 1) has an atomic mass of 23!