GCSE Chemistry - How to Find the Volume of a Gas #28

[@reemo1662]

whos watching this video studying for tomorrows exam

[@jngaming8168]

me💀

[@mohamedgharib8747]

+1

[@reemo1662]

@@mohamedgharib8747 bro it's been one year ☠️

[@felixsaynor5402]

Me

[@tommillard5873]

Me pal

[@Qasimodoz]

Who is watching this as revision for day after to tomorrow's chem test ( 4024 )

[@rhiannonm6022]

These videos are so helpful!! I was wondering: will you have covered all the topics by the GCSE's this year?

[@Cognitoedu]

Hey! Yes we will have! (We won’t be doing practicals though so be sure you check the video playlist against your exam board specification so you know the extra little bits you need :)

[@xenne.]

Oh how wrong you were , no GCSEs love ❤️

[@thesausageman5388]

@@xenne.Welcome to the future.

[@sherry_berryy]

watching this studying for my gcse tmrw

[@dvagicano4687]

Damn my o level is tomorrow btw how was your's?

[@thegreatgojousatoru5846]

whos here cos of triple science homework?

[@anaisscott246]

I would just like to say a huge thank you for always providing such amazing content and explaining it in the simplest, most aesthetically pleasing and overall BEST way possible. Thank you! ☺️

[@dimisploits7580]

cognito you are genuinely a life saver totally amazing! thank you so much for helping out so many students!!

[@Cognitoedu]

You are very welcome! 😊

[@Cognitoedu]

If you’d like to practise what's covered in this video, check out the lesson on the Cognito platform - cognitoedu.org/coursesubtopic/c2-gcse-aqa-h-t_3.07. The platform’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

[@isabellaelizabeth953]

just a quick question, the equation of ammonia would this be given in the question or is it something that we need to memories? amazing video so helpful! thank you

[@Hadiis]

i wanna know the same thing, let me know if you find out

[@DragonGirlMaria]

I believe my teacher once said that the equations would be given with the question so theres no need to memorise it!

[@SCP--mw7tx]

its safest to just memorize. my teacher would kill us if we dont memorize it

[@gazey]

@@SCP--mw7tx the comment is 2 years old. She probably finished her gcse already

[@TheJoshtheboss]

Wow, quite a difficult task made really simple. Well done!

[@cohiba6906]

Enjoy u dude. Just have solved concentration equation and got the right answer for a first time. The video was really helpful. Thanks for what u r doing

[@bookcase-robertjennings2464]

Thank you for the video. Where did the number 24 come from?

[@thomsonjoy228]

It's from the rule that states that 1 mole of any gas at room temperature and at 1 atm (atmosphere) is 24 dm^3

[@divinoalmeida4585]

So well explained and are so helpful. Do you have a video for nutrients. Just need it for my test, thanks

[@Cognitoedu]

Happy to hear it was helpful - I’m afraid we don’t have a nutrients video at the moment!

[@sahanasriashok7072]

who ever disliked this video??!🤨😲😡 it's been soooo useful 😃😃😊 Thankyou Cognito!😁😄

[@imaanmano1133]

i dont understand why did you put 16 for oxygen when its atomic number is 8? Im cooked i have a test tommorow..

[@olliegitara]

Oxygen is always O2, so its 16. because 8 x 2 is 16.

[@raeesadhorat2170]

I would have failed my Chem igcse tomorrow if it weren’t for these videos🤧

[@lye2007]

So the value 24 is it room temperature and pressure?

[@thecinedrone]

Yes

[@hebasamy2759]

thx :)... btw u got another subscriber ;)

[@Barera.23]

It helped.

[@hamzasherasmat6593]

This is genuienly the first time I have understood the calculations topic, I have never understood the subject and I thought I couldn't do chemistry for A-level but you told me that I can do chemistry. Thanks a *lot*!

[@archiestorey9423]

Also this video is not included on your website for GCSE comibed higher chemistry and it should do !

[@abhapandeyy]

Hey babe if you're talking about the AQA Combined Triology Chemistry spec then finding the volume of gas isn't actually in the spec for that! Its triple only, so if you're revising this, I'd say stop ,think and look at spec! Good luck with your exams x

[@aadilahmed.r7592]

Cognito, your dedication to sharing knowledge is truly inspiring. Your ability to break down complex topics into understandable lessons has empowered countless individuals. Your passion for teaching has ignited a love of learning in many, and we are forever grateful. Thank you, Cognito, for your tireless efforts to educate and enlighten others. thank you thank you so much ❤❤

[@HussainUsman-y8z]

My brain is not braining

[@Soodying]

After completing the question is it important to remove that imaginary 1 we put in front of the nitrogen?

[@E-MANNNNN]

Who is watching this 2HRS before exam 🤭

[@Nin-Nitrogen]

There is no 2 infront of the Nitrogen of ammonia so wouldn't it be 18dm³

[@yanawalls]

Yes there is

[@Yma0104]

there isn't lets debate @@yanawalls

[@yanawalls]

@@Yma0104 rawr

[@Yma0104]

@@yanawalls wtf

[@ganditselmuun7692]

does the gas matter when calculating?

[@sjd_1111]

No

[@catworld564]

Yo for find gas volume need multiple withe 22.4

[@muaazhaider3670]

So in this the molar mass of the gas doesn't play a part in finding the volume??pls reply cuz I'm confused

[@mrspark5965]

No it doesnt.

[@thecinedrone]

Because you only care about volume, the mass is irrelevant

[@viperdio69420]

My exam is in 1 hour

[@dhikshithbalaji1714]

nice and really helpful, thank you very much!!

[@humairairfan8078]

a more quicker way of finding the volume when you just have the mass is using the formula: mass/mr x24. For example: 27g of water vapour. what is the volume? H20 = 18 27/18x24=36dm3

[@wao914]

H2O*****

[@Coming_soon_bisorph]

However online courses are perfect

[@BilanFuad-hk4hg]

Pb (H2o)2

[@lukiia9854]

Just for clarification, what significance does the number 24 have so that we have to use it in this equation?

[@intelblox7354]

bc 1 mol of gas at room temperature = 24 dm cubed

[@Tommy-xw8zr]

Thank you for your effort, it really helped my .

[@LEA_-_-_]

Shhhhush

[@Glowdits]

add background music u fish

[@i_love_what_you_hate4637]

oh.

[@cookiesandmilkpanda]

FISH?? 😭😭

[@Yma0104]

that would ruin the entire vid for people who wanna understand the concept lol

[@PurelyNothing]

My guy just saved my life.

[@tinashencube3326]

Thnk you, you are awesome

[@rachelmegameno4299]

You these videos are so cool much love from Africa 🌍❤😍

[@yixyaxo]

i love you :)

[@patriciawalazi]

Thank you so much

[@jasminm5816]

is this for AQA exam board or just edexcel?

[@sjd_1111]

Both

[@KittenPinkamations]

thank you!

[@bunmiakokhia7143]

Omigosh thank you so much sir 😊

[@tezawr3963]

Thanks

[@zakkhan3270]

Thank you my goodman

[@tasibasultana8121]

Thank you so much

[@barclaymorgan2169]

is there ever a time we times by 24000?

[@xMurdererr]

that would give you the volume in cm^3 since 1 dm^3 = 1000 cm^3

[@Yma0104]

@@xMurdererr /

[@ibrahim-pd4lb]

now i dont have to worry on my IGCSE EXAMS YAYYYYYY

[@cookiesandmilkpanda]

COGNITO COMING IN CLUTCH YET AGAIN

[@서도-e5b]

Can I know the script for this video?

[@Coming_soon_bisorph]

I think in 1:24 you had to divide 60 by 32 because molecule of oxygen is equals to 32 not 24. 24 is for molecule of carbon!!!

[@Whaxiz]

since it's a gas it is 24, not 32

[@hamzasherasmat6593]

Lol spotted same mistake, l but then I realized the equation

[@seekhelpifuarelgbt8241]

wow that's a lot to be familiar with.😭🤒

[@nehaabbasi3741]

Brilliant explanation

[@SaadhunaAhmed-sw1dp]

Thankss a lot ! Yeah! Ima gonna pass the exam today bec of this masterpiece