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GCSE Chemistry - Moles, Concentration & Volume Calculations #29 

Cognito
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This video covers:
- How to use the moles = concentration x volume equation
- A worked example using the above equation and molar ratios
Exam board specific info:
AQA - Higher tier only
IGCSE Edexcel - Higher tier and separate science
Edexcel - Higher tier and separate science
OCR 21st Century - Higher tier only
OCR Gateway - Higher tier and separate science
Related videos/topics:
Maths Playlist:
• GCSE Maths (9-1)
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video

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29 янв 2020

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Комментарии : 216   
@Cognitoedu
@Cognitoedu 2 года назад
If you’d like to practise the material covered in this video, check out our platform at www.cognitoedu.org - it's totally free, and has been built to make learning and revision as easy as possible. The main features are: - Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown. - Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on. - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like. - A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts. - A comprehensive bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom
@irneaa
@irneaa Год назад
Thank you
@ierronei
@ierronei 4 месяца назад
im not cooked no more😫🙏
@TheBloxfruitsguide
@TheBloxfruitsguide Месяц назад
Nah mate I got mocks tmmr and I'm so cooked
@TsukinekoXVIII
@TsukinekoXVIII Месяц назад
​@@TheBloxfruitsguideSamee
@elinsambu7379
@elinsambu7379 29 дней назад
Honestly
@Apex_lifestyle
@Apex_lifestyle 7 месяцев назад
Bro thank allah that your Parents brought you to life You saved me from failing my igcse boilogy and now chemistry
@abdulwasay5790
@abdulwasay5790 5 месяцев назад
BRO LMFaO . but nahh fr tho this dawg saved me too ngl
@Clipzz.z
@Clipzz.z 5 месяцев назад
lol
@A_M_xoxo
@A_M_xoxo 4 месяца назад
LMAO REAL
@shadycat4271
@shadycat4271 4 месяца назад
allah dosnt exist, Jesus is king
@Who.is.that.girl_
@Who.is.that.girl_ 2 месяца назад
nah this so real ahah
@galaalqahtani3501
@galaalqahtani3501 3 года назад
bruh thankkk u so much for existing !!
@rubykumari3588
@rubykumari3588 3 года назад
Thank u so much for apritiating
@Aaghhhhh
@Aaghhhhh 2 года назад
@@rubykumari3588 thankyou so much for apritiating and not appreciating
@VirtualFTHC
@VirtualFTHC 2 года назад
@@rubykumari3588 I think you should study English not chemistry 🤣
@heynotizzy7493
@heynotizzy7493 Год назад
@@VirtualFTHCi think you shouldn’t be rude considering she could be a non native speaker or it could have been a typo
@VirtualFTHC
@VirtualFTHC Год назад
@@heynotizzy7493 it was a joke, take it as a joke.
@bratannnn
@bratannnn 3 года назад
i have a test tomorrow from the things we have learnt over the past months. I didn't understand anything from them, but with only 6:03 minutes i understood everything. Thank you so much!
@Cognitoedu
@Cognitoedu 3 года назад
Thanks Mehdi, best of luck with your test tomorrow 🙏
@bratannnn
@bratannnn 3 года назад
@@Cognitoedu thank you again !
@merlinfan4616
@merlinfan4616 2 года назад
Same it’s a bit late to say good luck since this comment was 8 months ago but I hope you did great on your test
@bratannnn
@bratannnn 2 года назад
@@merlinfan4616 thanks, hope it helped you aswell
@POPCORNBlobfish
@POPCORNBlobfish 2 года назад
@@bratannnn What did u get on the test?
@SaadKhan-jm5rq
@SaadKhan-jm5rq 2 месяца назад
LET HIM COOK, I SAID LET HIM COOK!!!!
@a_asg05
@a_asg05 Год назад
Ugh I’ve been looking all over the internet for a vid on this to help me understand the concept. This video is helping me at A level and for once I found a useful vid which clearly explains this concept. Thank you!!
@Neduliukas
@Neduliukas Год назад
I recently fell ill and had to miss some classes, so I spent time looking at questions I found difficult. I never really comment on these types of videos as they usually just refresh my memory or contribute to my foundation of future knowledge. Though, this video in particular helped me understand something I immensely struggled with, even when being taught by three different chemistry teachers. You explain every little detail so thoroughly, even giving reasons behind why we use such formulae or units instead of just explaining the method. I can tell you that this really helps, as it's much easier to do something if you know exactly WHY you're doing it. I can't thank you enough for the way that you attend to difficult topics like these, and I can now confidently say this'll be the first channel I go to for any misunderstood topics of mine. Keep it up :)
@Waterbots444
@Waterbots444 7 месяцев назад
Bro wrote such a big essay and tight that he would get a heart from cognito 😂😂😂 L
@grape2337
@grape2337 Год назад
This might be my saving grace. Explained this better than ANY of the teachers I've had. Thank you so so much!
@tuvshinerdenechuluun9792
@tuvshinerdenechuluun9792 2 месяца назад
Now im finally understanding chemistry for the first time but its too late i have igcse exam tommorow 😭
@ker09jc
@ker09jc 2 месяца назад
How did it go?
@tuvshinerdenechuluun9792
@tuvshinerdenechuluun9792 2 месяца назад
@@ker09jc I did it better than I expected. I'm confident that I didn't get ungraded
@tuvshinerdenechuluun9792
@tuvshinerdenechuluun9792 7 дней назад
@@theriverniIe idk man I think I barely passed, so just practice early
@shay6491
@shay6491 2 года назад
You are literally the only person on RU-vid who has helped me with this type of exam question, which I've been struggling on for months... thank you :)
@Cognitoedu
@Cognitoedu 2 года назад
Ah thanks shazzz, glad we could help you out 😊
@abuhurairahhussain8355
@abuhurairahhussain8355 5 месяцев назад
@@Cognitoeduhow do u know the name
@helpdesk482
@helpdesk482 3 месяца назад
@@abuhurairahhussain8355 hi abu huraira hussein!
@Kai_221
@Kai_221 16 дней назад
Everybody that runs the Cognito channel and the freesciencelessons guy all have a special place in heaven.
@gyz3r_273
@gyz3r_273 3 года назад
Tysm! I have a finals coming up tomo on all the chapters we’ve learnt, and this made me remember the past chapters clearly!
@Cognitoedu
@Cognitoedu 3 года назад
Awesome, that's great to hear! 😊
@paracline5500
@paracline5500 Год назад
Same, but a year later your comment
@novemberxswiftie
@novemberxswiftie Год назад
I learned this today in my chem class and I rlly didn’t understand it even with the teachers help so thank you so much! I’m saving this video to my watch later ❤
@Mimi_alm07
@Mimi_alm07 8 месяцев назад
YOUR SAVING MY CHEM GRADE THANK YOUUUU ❤❤❤
@riziziz
@riziziz 3 года назад
thank you for this. you've explained this better than my own teacher
@Mich_.-
@Mich_.- Год назад
thank you so much i havent understood anything this year but your videos really help teach me
@joebratherton1197
@joebratherton1197 3 года назад
I never understood this until this video thanks a lot mate👍🏻
@theflimsboy7730
@theflimsboy7730 3 года назад
Same dude
@Cognitoedu
@Cognitoedu 3 года назад
glad we could help 😁
@RedsGamerxox
@RedsGamerxox Год назад
Thx bro have an exam 2moro and i couldnt understand but after watching this video im confident ill do well in the exam , deserved a like and a new subscriber 😀
@HolyNewBendy
@HolyNewBendy 2 месяца назад
This has given me confidence- i actually understood how to do this
@de_me_in_hasty2303
@de_me_in_hasty2303 2 года назад
words can't describe how thankful and happy i am.Thanks 👍👍
@Cognitoedu
@Cognitoedu 2 года назад
Glad you found us 😊
@susellar7925
@susellar7925 Год назад
Suddenly, chemistry is now simple- Thank u ✨✨✨🖤
@mikaelaprim4273
@mikaelaprim4273 4 месяца назад
Thank you for your videos! The visuals help sooo much too
@ke._njil.o.h2458
@ke._njil.o.h2458 Год назад
Thanks man,I have a chemistry exam soon and feel rather lazy to really understand through my textbook. And your video was short and concise exactly to the point making me understand alot better and save me time.
@baldeagle1235
@baldeagle1235 2 года назад
Thanks for the amazing revision
@galactikhex
@galactikhex Год назад
Thank you sosososo much. My chemistry teacher is absolute dog so these videos actually carry me so much. They explain the topic and give so much context. If you are reading this. I would appreciate it if you went over calculations or things we need to remember multiple times and slower? As that's the hardest part. Thanks
@taescanvas8630
@taescanvas8630 3 года назад
thank u, ily 🥺 I was able to answer my question because of this :D and you explained it in a way that was very easy to understand!
@siddoesstuffonyt2074
@siddoesstuffonyt2074 10 месяцев назад
Bro i have my first exam as chemistry and I did not understand anything in school. I thought of dropping the subject after the teacher failed to explain and I the students failed to understand this topics so please THANK YOU for this, it just made it so easy (tears of joy😭😭😭)
@lay_laa24
@lay_laa24 3 года назад
You made this so simple thank you!!! I really appreciate It :)
@Cognitoedu
@Cognitoedu 3 года назад
and we really appreciate your support strawberry queen 🍓😊
@skinnyman2133
@skinnyman2133 3 года назад
thanks you for everyone that worked on this, you people literally saves people like me who has shitty chem teachers
@Cognitoedu
@Cognitoedu 3 года назад
Thanks skinny man we really appreciate it 😁
@ishirasilva3610
@ishirasilva3610 3 года назад
super duper helpful. I luv ur videos
@eitansacks8772
@eitansacks8772 3 года назад
Thank you so much i have been stuck on this for ages
@aliaalkaabi2733
@aliaalkaabi2733 Год назад
thank you cognito im studying for my GCSEs and this helped me thank you
@lunarrl7957
@lunarrl7957 Год назад
i really love you thanks alot for all your videos I have my mock tomorrow and I understood everything from you thanks a lot
@nehanayak4861
@nehanayak4861 8 месяцев назад
This helped me so much! Thank you! :D
@randombird1238
@randombird1238 2 месяца назад
If it wasn't for this i'd be failing chemistry again 😭thank youuu
@VaultYT.
@VaultYT. 2 месяца назад
Ikr it’s my retake Tuesday 😭
@6thsensegod297
@6thsensegod297 Год назад
I swear this helped me a lot ❤
@hanah_31
@hanah_31 Год назад
How? how did you make this so easy?... i cant thank you enough... ill recommend this channel to my juniors definitely!
@RedsGamerxox
@RedsGamerxox Год назад
thx bro,deserves a like and a new subscriber😀
@dhaneshv3927
@dhaneshv3927 8 месяцев назад
grade 9 is for me for sure, only because of you...
@moazwaleed9063
@moazwaleed9063 3 года назад
Your da best! Thanks a trillion
@YasLove111
@YasLove111 3 года назад
Thank you!!
@ina_002
@ina_002 3 года назад
Thank you!
@Elemanime
@Elemanime 3 года назад
your the best thanks
@tanglinsec3259
@tanglinsec3259 Год назад
It did made sense a lot❤.
@KwasiWireko
@KwasiWireko 5 месяцев назад
wow i thought it was very hard but now i understand it soo well thank you very much
@liv.Sophie.Eve02
@liv.Sophie.Eve02 3 года назад
Thank you.
@liliacassam5341
@liliacassam5341 2 года назад
Best guy ever !!
@user-qx6hk4xf6b
@user-qx6hk4xf6b 2 месяца назад
Moles per dm3 can also be written as moldm^-3
@AS_89071
@AS_89071 2 года назад
Thank you soo much sir 🙏
@alexlow6811
@alexlow6811 3 года назад
thanks for making these videos!!
@diggisirajo
@diggisirajo 8 месяцев назад
Ty this is very useful
@ayomideolowookere6003
@ayomideolowookere6003 2 года назад
Thanks a lot
@aliriyas5436
@aliriyas5436 2 месяца назад
Sir I am having my chemistry paper1 like literally in an hour and I never understood concentration you really helped. Thank you so much
@jan_3ll
@jan_3ll 9 месяцев назад
Life saver frfr 😭😭😭🔥
@itsame_radey7240
@itsame_radey7240 3 года назад
thank you..
@itz_potassium
@itz_potassium Год назад
Thank you soo much
@elxra1
@elxra1 2 года назад
I got my paper 1 tomorrow hopefully I do well looking this up last minute because i still dont get it
@S07247
@S07247 Год назад
how it was?
@khanhnamuong6676
@khanhnamuong6676 2 года назад
best video ever
@safayousif8197
@safayousif8197 3 года назад
I TAHNK YOU FROM THE BOTTOM KF MY HEART THIS ZAVED MY LIFEEE
@safayousif8197
@safayousif8197 3 года назад
@@sakeenazahragulzar ok karen 😒 why u so pressed for
@safayousif8197
@safayousif8197 3 года назад
@@sakeenazahragulzar grow tf up stop going after 13 yr olds
@safayousif8197
@safayousif8197 3 года назад
@@sakeenazahragulzar can a person not be grateful without someone telling tyem to go to hell
@hasanfarhan8807
@hasanfarhan8807 3 года назад
@@safayousif8197 Pakistanis fighting on International RU-vid Channel XD
@xUltraShadow
@xUltraShadow 3 года назад
@@hasanfarhan8807 wtf is even wrong with them lol they are so butthurt.
@nelliegeorge
@nelliegeorge 7 месяцев назад
Thank you
@s20708
@s20708 Год назад
thank you so so soooo much sir. im a year 10 student who has her mocks in less than a week and so far i am really struggling with chemistry. on my last test i managed to go up 3 grades, from a grade 3 to a grade 6 and it was a test based on calculations. i really struggle with quantitative chemistry and you have helped me understand it so well i am really super grateful
@mii5951
@mii5951 6 месяцев назад
good luck in GCSEs in the summer!!! i have mocks now (y11) and chemistry is killing me lol
@megaloschemos9113
@megaloschemos9113 5 месяцев назад
The penny has finally dropped after the 10th time watching this...thank you😊
@ahmadanwar7254
@ahmadanwar7254 Год назад
You are the best😊😊😊😊
@mariamsheriff6342
@mariamsheriff6342 5 месяцев назад
life saver frrrr
@snowneo8156
@snowneo8156 Год назад
this guy teaches better than both my school and tution teacher
@d.jcheetah8724
@d.jcheetah8724 7 месяцев назад
Thank youuuuuuuu🙏🙏🙏🙏🙏🙏❤️
@Dz-nn9gt
@Dz-nn9gt 2 года назад
Tysm 😭
@grassblanket1457
@grassblanket1457 Год назад
thank you so so much you literally save my life❤❤❤
@ShivamSingh-om6jg
@ShivamSingh-om6jg Год назад
Hii
@treeofknowledge4922
@treeofknowledge4922 3 года назад
Brilliant sir amazing keep making videos
@Cognitoedu
@Cognitoedu 3 года назад
Thank you, we're on it 😇
@Natalie_Val
@Natalie_Val 2 года назад
THIS is amazing, YOU are amazing Thank you SOO much for explaining
@Cognitoedu
@Cognitoedu 2 года назад
Thank you very much Natalie! 🤩
@LegacyofyourboyCR7
@LegacyofyourboyCR7 7 месяцев назад
You're a great gentleman 🥰🥰❤❤❤
@tezawr3963
@tezawr3963 2 года назад
Thanks
@lahirusergio9548
@lahirusergio9548 3 года назад
thank you
@R1-BrawlStars
@R1-BrawlStars 5 месяцев назад
This left me disoriented Edit: I rematched the video & solved a similar problem and finally got it. Thanks man
@the21podcast
@the21podcast 3 года назад
thanks a lot sir
@mic2385
@mic2385 3 года назад
nice name
@User-ki1ws
@User-ki1ws 4 года назад
How do you make these animations? Like which software do you use
@shrek3759
@shrek3759 Год назад
Ur the best
@shayaanpillai2104
@shayaanpillai2104 2 года назад
my final exam is tomorrow so i am studying covalent ionic and metallic bonding thanks man
@ubaidejaz1539
@ubaidejaz1539 2 года назад
thxx
@xsrprox12
@xsrprox12 Год назад
I have one question. at last in the video when you do 0.0075 divide by 0.025 you get a answer 0.375 so do we write the whole number or we round it up which will be 0.4, but in the video it is just 0.3
@vibhutg1919
@vibhutg1919 2 года назад
i learnt stoichiometry in 3 hours while my teacher taught it for a whole ass month bruh ur insanely good I hope u get paid enough
@Maryam-rj3gm
@Maryam-rj3gm Год назад
Cognito is my husband istg lifesaver, needs to add more subjectss
@rithanraj8442
@rithanraj8442 2 года назад
can you please give more complex problems on moles, concentration and volume calculations sir.
@Josh-cc4vs
@Josh-cc4vs 6 месяцев назад
fr
@ayan12430
@ayan12430 Год назад
Bro I got all answers of my questions nice
@theunknownchampion9492
@theunknownchampion9492 Год назад
Hello i just did the chemistry paper and it had a titration question and i am now confused on that isnt concentration = mass/volume ? I'm confused on this equation concentration = moles/volume?
@fdgaming25
@fdgaming25 4 года назад
Great video! I just have a question why did you divide the 0.015 by 2? What is the purpose of molar ratio? Do we didvide with the largest number in the molar ratio?
@dev_7jain174
@dev_7jain174 3 года назад
@JESLYN NEO (Student) bro u replied to that guy 4 months later to when he needed it, he aint getting helped mate.
@wajeehsaeed1201
@wajeehsaeed1201 3 года назад
@@dev_7jain174 🤣
@SD-qb6ft
@SD-qb6ft 3 года назад
@JESLYN NEO (Student) so if the ratio was let's say 3:2 would we divide it by 3 since that's the number of the known substance?
@Fareeda212
@Fareeda212 3 года назад
@@SD-qb6ft if the ratio was 3:2 and the unknown substance you were trying to find was the 2 then you could divide it by 3 ( to find one part) and then multiply by 2 (to find the 2 parts)
@xUltraShadow
@xUltraShadow 3 года назад
@@sakeenazahragulzar Chill the fuck out, attention ki bhook hai kia?
@otoxyl2794
@otoxyl2794 3 года назад
nice
@Shadow_T-k
@Shadow_T-k 4 месяца назад
It took me 3 weeks to understand from my chem teacher but here 5 mins only 😂😂😂
@smmae
@smmae Год назад
How can one explain such a complicated topic so clearly.
@ifathema
@ifathema Год назад
even my chem teacher couldnt explain this simple thing so well
@saadszn6256
@saadszn6256 2 года назад
The best channel I have ever subscribed to❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤
@Cognitoedu
@Cognitoedu 2 года назад
Aaah thank you so much Saad, glad to have you as a subscriber 😊
@saadszn6256
@saadszn6256 2 года назад
@@Cognitoedu no no no I am thankful to you guys you just saved me from a whoopin🍑👋😥
@danielchard3926
@danielchard3926 2 года назад
@@saadszn6256 huh
@meh343
@meh343 2 года назад
The exam it tomorrow I'll get back to you with what come of this 😂
@InDubio_ProReo
@InDubio_ProReo 5 месяцев назад
You dilute a substance to decrease the concentration. What is it called when you increase the concentration?
@archiestorey9423
@archiestorey9423 2 года назад
this video is great but its not on your website ?????
@mayyahun
@mayyahun 2 года назад
what i would do without cognito is a mystery
@Cognitoedu
@Cognitoedu 2 года назад
🙌 🙌
@marya7057
@marya7057 2 года назад
You should do piano tutorials too!!
@shaykitoff2454
@shaykitoff2454 Год назад
5:19 how do u know which moles to use
@noel.m7148
@noel.m7148 9 месяцев назад
Is this for Triple science only or is is also for combine higher
@ricks2907
@ricks2907 Год назад
You rock thanks buddy Ricky 💃🕺🏼🎶💃🕺🏼💃🕺🏼🎶🐈‍⬛💃🎸
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