How To Do Mole Calculations | 9-1 GCSE and IGCSE Chemistry | OCR, AQA, Edexcel, CIE, WJEC

[@Leah-nm9eo]

Your actually a life saver. My teacher can't explain this properly in 5 months but you can in 15 mins

[@omster_]

Hahahah my teacher is shit as well

[@maashardatransways2601]

you are right

[@Tjay840]

True af....

[@Ayot793]

Wow this is such an underrated channel. I'm using your videos as extra revision for my GCSE mocks, you may not use fancy animation but you explain things really clearly.

[@SciencewithHazel]

+Tomi Oni thanks so much for this comment. I feel like you really understand my channel’s ethos. I’m always embarrassed by the lack of animation but happy to know it’s still of some use regardless.

[@hollyskye8487]

Honestly, thank you so much for this, I have never understood moles-I have been stressing over this topic for months and months and I just couldn't get it, but oh my life you explained it in such a simple, easy to understand way , I cant believe it but it is thanks to you I can finally say I can do moles. Thanks so much!!!! I am so HAPPY x

[@SciencewithHazel]

+Holly Skye your comment has made me so happy! Glad moles are no longer a mystery! X

[@bella-fv1ul]

you made things so clear for me in the span of 15 minutes. my teacher has spent 2 months teaching this and i couldn't understand up until now. THANK YOU!!!

[@SciencewithHazel]

❤️❤️❤️

[@kalindaantoniadis-patel7561]

ah so happy I found your channel! My science teacher explains everything in such a complicated way, so I usually go home to revise the certain topics I do not understand. I'm only in year 10 but I'm in a Triple science set for the new 9-1 gcse's which can be draining at times long story short IM SO HAPPY IVE FOUND THIS x

[@rachelmarshall2087]

kalinda patel im exactly the same right now xx

[@-chairs-9541]

kalinda patel my science teacher cant even speak english properly

[@Leah-nm9eo]

kalinda patel me too but I'm determined to make it no matter how much I hate school

[@SkaterBlades]

I'n year 10 my teacher was useless, he'd ask someone a question then ignore them and ask someone else! Luckily he left and the teacher i got in year 11 is actually really good. I'm sitting my chemistry units 2 and 3 on Wednesday, I'm top set triple science

[@sarahhastings3711]

I agree with you soo much

[@tamyraselvarajan4289]

I have a Chemistry exam ( paper 4) tomorrow and I just discovered this and truly I understand what my teacher has been trying to deliver to me for the past few months. Thanks!

[@AndrewWeng]

I love the way you use a table. It makes it much clearer.

[@ethix3538]

I can finally do my IGCSE tomorrow without stressing about calculations

[@nabeelislam7391]

same here bro

[@ethix3538]

@@nabeelislam7391 weird how it is the most confusing part for me

[@AhmedMohammed-un6dr]

Same bro

[@aymanamrani5952]

good luck bud

[@nabeelislam7391]

they really should remove moles from igcse

[@samabdi5455]

It is such an amazing and simple resource that is so underrated. I can't believe it isn't viral I hope ur KZbin channel becomes big really soon so it can help more ppl like me

[@SciencewithHazel]

+sam abdi thanks for the loveliest comment!! X

[@Ayesha-se4xf]

CIE IGCSE actually requires more than this. We need to know the mole calculations for gases and in concentrations of solutions as well. Still, great video!

[@haninhnh4461]

this video is VERY VERY HELPFUL! i understand better now. gonna have my chemistry mocks tomorrow and i hope ill do well XD thank you for the video and i love your accent btw :)

[@joelmathews6839]

thank you. It was extremely helpful I am giving my exam this month . It made my life sooooo easy.thx

[@RamyRamy-eb2ki]

Good

[@smiilee2001]

THANK YOU LOVE. MY IGCSE'S ARE IN A FEW DAYSSSSS

[@mohamedrazeen6836]

Same here, I have my exams tomo

[@evehswahn5511]

I have my chemistry exam tomorrow and I really didn’t understand quantitive chemistry so thank you

[@angelstarfire]

Thank you yet again! Chemistry GCSE next week Thursday and started revision today lol

[@awwcute5808]

samee

[@Varoid]

this helped me so much thanks! moles was a like nightmare for me

[@Tjay840]

Maa'm you did a crazy impact on my life...I didnt know anything about the subjects before...But now i know everything by hard....I took only a 6 grade in the paper class i went but now i got an 8....Thank you soo much..Much love❤

[@_2tired4this_64]

Never taught this and I found this reallyyy good. It helped me soo much THANK YOUU

[@haka5630]

Wow, you cleared up work that confused me soooo much, thanks so much!

[@veerikav1662]

Oh my god thank you so muchhhh my chemistry teacher doesn’t explain things through, but you have done an amazing job on help explaining it. Thank youuu smmmm :)

[@SciencewithHazel]

Glad I could help!

[@timorlov3000]

My God! My cancerous teacher couldn't explain nada to my limited brain cells in a class of 15 students for a toal of 7 weeks whilst you could in 15:15 minutes. I sincerely wish you could have been our Chemistry teacher. Your definitely going to heaven for this!!!!

[@Demi305]

I really love this method, its really better than animations and it really explains things very well... thank you very much!

[@alishbamalik8850]

i love your videos so much, u explained them so much better than half the teachers I've had

[@ndndknsjsa4658]

PLEASE MAKE AS LEVEL CHEMISTRY VIDEOS! you helped so much with my igcse’s last year. I’m struggling with As/A level so much! My teacher is terrible at explaining 😩

[@SciencewithHazel]

I am doing! Check out my playlists

[@tomconte3734]

Cheers Hazel I know what I'm doing now thanks to you :)

[@harkirank1923]

Great refresh for last minute revision for gcse

[@hamzajjgymlife9888]

Excellent channel/video. I was looking at the moles page in my book thinking wtf.. this made it sound so easy! thank you so much

[@Chromosomeh]

How the hell I get this explained 10x by a teacher and don't understand anything, I watch this video once and everything is clear

[@raisadrawss4190]

thank you so damned much. Been struggling with this for AGES

[@francismannion7075]

Thank you Hazel for a very nice lesson.

[@brad3879]

This is so useful thank you

[@saidurrahman4311]

Amazing, different types of example are given

[@etcaz590]

thank you for helping me out, you've helped me and a couple other of my buddies, I'm sure I'll get a B on my test

[@-chairs-9541]

Enrique Cazares thats a hugh mungus grade

[@sheeth9878]

nice meme

[@zainalm9229]

Hey miss hazel! Can u please make a video on energy calculations for chemistry & Dynamic equilibrium& reversible reactions?

[@tacosmakos4613]

Hey Hazel!! Can you do a topic covering Stoichiometry?

[@itzztyy]

Thanks for giving me a good revision before my test

[@harkirank1923]

Thank you Hazel!!!

[@nicolesakellariou3752]

You are the best!! SUBSCRIBED

[@SciencewithHazel]

Thank you ❤️

[@NatalyaVDBrock]

Hi Hazel. This is such a helpful video! Thank you so much! I know finally understand moles! By the way, you've got the same calculator as me.

[@ameliae396]

Thank you! When we did this in class it was pretty confusing. This is more clear

[@hassanosman5588]

I love your lesson it help me a lot know in 2021 👍💖💖

[@savyaaa9238]

my saviour.

[@Jamvlogging]

Thank you

[@dhanvipatel5093]

can you do a video on how to figure out the amount of volume left when the volume is given in equation like these? If u could in 2-3 day it would be very helpful. Please do this! I would really appreciate it

[@louay_7626]

luvvvv that!!

[@silbers33silva65]

This helped me sooooo soooooooo muchhh!!!!!!!

[@dozeTV]

thank you very much

[@user-vw7is2yl4t]

Thank you !!!!Hazel ))))

[@-chairs-9541]

Аида Розыева

[@banban9599]

Omg I think I'm going to die. YIU ARE A LIFESAVER. THANJYOU OMG OMG

[@themilkemissary7898]

I do not understand the question at 6:00 mainly % by mass number of moles meaning and why you divide the mr of ammonium sulfate by nitrogen or why you time the nitrogen by two on the top

[@sanadhamarsha8013]

From where did u bring the number of Mr and N in 4:25

[@grade8william]

I actually think.I'm in love with you thank you so much

[@SciencewithHazel]

+River Polaris hahaha. Glad it was useful!

[@zehraabbas7999]

Hi, can you please do a video about acids and alkali's from the old specification.

[@ashham9183]

Why didn't you multiply 170 by 3 for Mr of silver nitrate?

[@belladoyle3468]

7 because its a seperate element. Unlike the oxygen that was in brackets and therefore..together.

[@catguy7520]

Bella Doyle study the exam is in 12 hours

[@tanishka7624]

Very helpful!!!!!

[@0000Kickass00000]

ty

[@Happyman1773]

Thanks for the video, helped me with the bit at the end that I was unsure on. Do you have videos on further additional as well as Additional?

[@SciencewithHazel]

Yeah, check out my Haber process video. I'm about to film one on esters too. Any specific topic requests?

[@Happyman1773]

+Science with Hazel positive and negative ion tests? And how to remember them? Thanks

[@SciencewithHazel]

+Happyman1773 yes, great idea, it's been added to my to do list x

[@SciencewithHazel]

Happyman1773 Video on ion tests made :) kzbin.info/www/bejne/hYfFiGpoh9OtjrM

[@Happyman1773]

+Science with Hazel thanks A lot

[@jeannesemple7349]

heya would u ever do a q&a with your boyfriend or someone else who went to Cambridge regarding the life there, work load, experiences you had and the grades you got. Much love from DXB

[@shahidurrehman5773]

very helpful :)

[@katieansell1598]

Maths is not my thing. Struggling with questions such as this: (c) Sodium hydroxide reacts with carbon dioxide. The equation for this reaction is 2NaOH + CO2 > NO2CO3 + H2O A solution of sodium hydroxide of concentration 2.00 mol/dm3 is used. (i) Calculate the amount, in moles, of sodium hydroxide in 200 cm3 of this solution and Deduce the maximum mass, in grams, of carbon dioxide that can react with this solution of sodium hydroxide. I think it is is the conversion between cm and dm that is confusing me? any advice would be greatly appreciated :/ :)

[@SciencewithHazel]

+Pink Grapefruit try this: kzbin.info/www/bejne/qnXbn6iMjcqkgqs

[@katieansell1598]

+Science with Hazel Really helpful thanks!

[@PJ-nc4jh]

Oh my god, you're an angel! Thank you so much!!

[@mohamedyasser9632]

بحبك

[@mr.classy8965]

Hey hazel can you plz do some latest chemistry past papers of edexcel igcse olevel....! Plz

[@olliesweetland8461]

I LOVE you

[@katekate625]

Where did u get 4!!!

[@XanAllison]

this was so helpful :) nice to understand SOMETHING before my gcse exam tomorrow

[@SciencewithHazel]

+Alexander Allison hahaha. I'm sure you know lots more than that! Best of luck for tomorrow

[@grade8william]

omfg I'm gonna fail

[@XanAllison]

haha, it went okay i thought… you?

[@crimsonmoon7848]

so what did you get becase I got a bullet

[@ibrahimmirza8465]

I have a question The first problem that u solved, to find the mr the equation would be mass/number of moles but where did you do that I'm just confused

[@woobinhwang2207]

I still haven't covered the syllabus and I have the test in 5 hours.

[@gurdipsingh9521]

I loved this video. Just a suggestions that you should round up the decimal numbers to three significant figures.

[@jemmamariner2898]

thank you so much ! This really helped :)

[@ellamayward1057]

im doing that last equations and im confused why the Mr value is 170 and not 386? why don't you use the big 3 ?

[@user-bd1kl7rf3v]

2024 it's now 6.02×10^23

[@dramaland2462]

copper is 63.5 should we round it up during the exam like you did? or can it work either way because I did it without rounding it up so does that mean I will lose a mark?

[@karenkwang3960]

could you pls do a vid on reduction and oxidation half equations? :)

[@SciencewithHazel]

+Karen ParisVS I just uploaded an updated version of my electrolysis video which includes lots of ionic equations! kzbin.info/www/bejne/Y3XNiH-oa56HnLM

[@adambarclay4209]

in the first calculation I didn't round up to 64 (with the Cu), I just kept the 63.5, can I do that? or should I round

[@banban9599]

Where did you get the 14 x 2 from??? Mr if nitrogen

[@valeriaamer4075]

true I got mr 89

[@ctbradish]

The formula for nitrogen is only N, not the entire (NH4)2, , so on the periodic table the mr of Nitrogen is 14, so therefore 14 x 2(because theres a 2 on the outside of the bracket) equals 28

[@SOMEWHATALICE]

I used to GI to Columbia primary school which is on that road haha maybe shouldn't be saying this on the internet..

[@exoaretruelegends6527]

Thank you so much 🤗🤗🤗🤗

[@sutapagoswami116]

My dumb ass didn’t know that she sat in a chair and not a couch before 0:32 where I went like :O

[@ishanbhardwaj1071]

I swear she made a mistake in the last one because the Mr of 3AgNO3 is 510 since theres 3 molecules of it. She only did it for 1?

[@danamunther333]

i dont understand this part 5:44

[@sup_hey2974]

What is Mr？

[@maybell2295]

Thnaks a lot, this is great! But is this all the calculations you need for gcse additional science chemistry or are there anymore for quantitative chemistry C2? x

[@SciencewithHazel]

Depends which exam board you're studying. Have you seen this video on titration calculations? kzbin.info/www/bejne/qnXbn6iMjcqkgqs

[@maybell2295]

Hey! It's Aqa

[@SciencewithHazel]

Correct me if I'm wrong, but I think additional requires general mole calcs, empirical formulae, percentage yields and working out the masses of things. Further additional requires titration calculations

[@maybell2295]

+Science with Hazel Thank you, aha I think that's it. Btw when reacting masses is there a certain formula I can use that applies to all? coukd the mol Mr mass one work for all of those? Thanks!

[@aboddsjd5301]

Is their any difference between GCSE and IGCSE ?

[@2001shosho]

IGCSE is the international version of GCSE

[@nawalabdullahi3844]

Mass=Mr×number of moles But u r looking for mass of nitrogen why did u divided nitrogen on it self

[@parmavioIets]

You remind me of Hayley Atwell

[@LP-gu6ir]

Who’s watching this the day before the exam 😬

[@ikshitavelupula7899]

me lmao ;)

[@daalhead1098]

morning of exam. exam at 9am, currently 6:10

[@zainalhaji7513]

only teachers unliked this video.

[@zpuddy1355]

Hehe he grade 9 here we come

[@oppressor4801]

idk why i chose chemistry.

[@fishblublublub]

same

[@michaeltofts2576]

Who's watching this the day of the exam 😬

[@sidratulmuntaha5439]

Gcse is easy then gce

[@Yeaam]

Thank you

[@HamzaAli-qd9xm]

بحبك

[@loaisherif5092]

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[@yasooamr7570]

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