Mole Concept

[@ManochaAcademy]

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[@PremKumar-ei4dm]

Finally after many years I got cleared on the mole concept... Thanks a lot

[@ManochaAcademy]

You are most welcome

[@LearnwithSahim]

@@ManochaAcademy Sir, solutions ?

[@gnation9576]

Ope oooooo. His village people don japa

[@jeromeoctivius2536]

Other channels weren't showing how to even solve it

[@aahankumar2567]

Answers: Q1. Molecular Formula of Ammonium Carbonate => (NH₄)₂CO₃ N₂ → 14 × 2 = 28 2H₄ → 1 × 2 × 4 = 8 C → 12 O₃ → 16 × 3 = 48 ---> 28 + 8 + 12 + 48 = 96 Therefore, Molar Mass of Ammonium Carbonate is equal to 96 units and it's expressed as 96g/mol __________________________________________________________________________________________ Q2. Molecular Nitrogen consists of 2 Nitrogen Atoms and is denoted as N₂ Molecular Mass → 28 Molar mass of nitrogen gas → 28g/mol We know, that per mole of nitrogen gas, there are 28 grams of it. So, let the number of moles be x 28x = 140 x = 140/28 = 5 Thus, there are 5 moles in 140g of Nitrogen Gas STP is Standard Temperature and Pressure. According to IUPAC Definition, (Which is usually used by chemists) STP is 273.15K and 10⁵ Pa. Volume of any gas at STP is 22.4L ( Standard Molar Volume ) Thus, Nitrogen's volume at STP is 22.4L __________________________________________________________________________________________ Q3. The molecular weight of water is 18 g/mol. Hence, one mole of water weighs 18 g. One mole of water contains 6.023×10^23 (Avogadro's Constant) water molecules. Mass of one water molecule = 18/(6.023×10^23) 2.988 × 10^-23 g Since this is in C.G.S. unit, we need to convert it into S.I. unit S.I. unit of mass is Kg 2.988 × 10^-23 g ==> 2.988 × 10^-26 kg [ SINCE 1 x 10^0 g = 1 x 10^-3 kg ] 2.988 × 10^-26 kg ==> Answer. __________________________________________________________________________________________

[@ItzDevil-nk3ry]

At 2 ans volume must be 5 times 22.4 litres = 112 litres. Btw thanks for helping me out in other answers.

[@maxwell6864]

...people was very confused when I started to buy stuffs in moles, man you're a master of chemistry🤜🤛

[@samarmalhotra8135]

if teachers taught us like that, I would have been so interested in studies

[@ManochaAcademy]

Thanks for liking

[@shiyamdev724]

@@ManochaAcademy no responses to me 😢

[@Atmosphericone]

Ye

[@narasimhamurthyl205]

U r absolutely correct

[@fiercetroopergaming6477]

The production quality of the video and the fluency in communication is outstanding...

[@ManochaAcademy]

Thanks for liking

[@shivajihake6131]

Amazing,i really understood this concept,with which i ws messed up since 2 days

[@ManochaAcademy]

Great !!!

[@pastorpaulmovies3128]

The lessons are very good but improve in your linking directions

[@ccred-zk4zn]

I have always had a doubt in mole concept. I have watched tons of videos to clear my problems but none of them helped until I came across this video. Thank you so much for clearing my doubts. When I first came across this topic , my mind was deluded in confusion. Most of the teachers offline or online blindly just state the avagadro's number and tell us to remember it. But this is the first time I came across someone who practically showed us how and why it is the way it is. On behalf of all students, we are really thankful for the all the contents you come up with.

[@Trendsofcricket]

U deserve Nobel prize because explanation as u ...never before ever after

[@ManochaAcademy]

Wow ! Thanks

[@ibrahimkhan-ln3qc]

Out standing sir, first time i understand the concept of mole realy

[@ManochaAcademy]

Great to hear that the concept is clear to you :) Thanks!! To revise the concepts, try the Quiz and Top 3 Questions for this video here: www.manochaacademy.com/chemistry/mole-concept/l/mole-concept

[@noormohammed9605]

Me too

[@madhavighatol9841]

Same here

[@medidaharini4999]

@Ĺ Laiba yeah

[@jagannath_ke_nayan]

Me too sir. I am very greatful to u

[@sumonachakraborty2566]

Im a house wife of 47 years. I did chem hons . I forgot many things in chmistry. I subscribed ur channel to learn chem again. Thanx for explainig in such a good way

[@yogitasabar535]

One of the best teacher in online...

[@ManochaAcademy]

Thanks

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Sir you are really India's top 1 teacher 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏 Guru ji your teaching methods is very nice

[@ManochaAcademy]

Thanks a ton

[@sulbhagholap351]

Sir , you use simple English language , and teach peacefully ,so we can easily understand Thank you ☺️

[@ankitaghoshchowdhury7615]

Answers 1) 96 grams 2)i) 5 moles ii) 112 litres 3) 0.018 kg Thanks alot sir😄😊

[@arjoona3711]

could u explain this?

[@nathanjohn2572]

Unfortunately you are wrong.The answer to question 3 is 2.99 × 10 ^-23 grams.It is the molar mass of H2O divided by Avogadros constant.

[@falco2296]

@@nathanjohn2572 you could just do the molecular mass number as the mass of 1 mole of water

[@nathanjohn2572]

@@falco2296 No,if you what the video it is infact 1 molecule of water not one mole of water.

[@mohammadasif25777]

In a simple and easy manner, you explained this tough topic and I understood fully. A lot of vedios I have already gone through but couldn't understand. A great and unique teacher amongst you tuber. Thanks alot. A Great, great, great teacher with great and valuable knowledge.

[@ManochaAcademy]

You are most welcome

[@blossomwings8716]

Tomorrow is my physics exam and I dont know what to do , and i searched your channel and read the mole concept ! Now I understood ! thank you so much sir !

[@ManochaAcademy]

All the best

[@saitrimira4412]

But Mole concept is in chemistry.. This lesson is in chemistry bruh

[@Nino-eo8ey]

Couldn't understand the concept of moles properly at first, but thanks to you, I now understand it better! Thank you! Please keep up the great work.

[@kaspianafruza2536]

Earlier I had so much problem in understanding this topic but after watching your explanation my concept is crystal clear now,Thank you so much sir!

[@ManochaAcademy]

Most welcome

[@viveksingh-dp6cn]

sir before watching your this video of mole concept I watched many video but I unable to understood any of those and at last I watched your video and now my mole concept is clear. So thnx at lot sir....

[@rithizx]

1) 96 g 2) => Number of moles in 140 g of N2 is 5 moles & volume is 112 L 3) 18 g ❤

[@gamingkilleryt563]

Bro agr appko nhi aata to glt kyu bta rhe hoo Sir ne volume of gas puchi thi or gas N² hoti na ki N😅😅😅

[@navyamittal5138]

@@gamingkilleryt563 N² nahi, N₂ hota hai. Bro pehle aap to revise kar lo 😅😅😅​

[@vigashchandresh7782]

Sir ur the only one who cleared my full doubts about mole concept thanks a lot sir

[@ManochaAcademy]

Glad to hear that

[@arulmuruganganesan7589]

Arnold Arulmurugan

[@srivatsaa.r.9936]

MOLE CONCEPT.... SIR, YOU EXPLAIN MANY COMPLEX THINGS IN A SIMPE WAY TO MAKE UNDERSTAND THE CONCEPT. AMONGST ALL, THIS VIDEO STANDS IN THE FOREFRONT. NO DOUBT YOU HAVE A KNACK OR SPECIAL QUALITY FOR TEACHING. IN MY OPINION, THIS VIDEO IS OUTSTANDING IN EXPLAINING THE CONCEPT AND A WORLD CLASS ONE WORTH PRESERVING FOR DEMONSTRATION IN ALL SCHOOLS AND COLLEGES. AS PER MY EXPERIENCE MANY BOOKS AND TEACHERS/LECTURERS HAVE MISERABLY FAILED IN THE PAST AND PRESENT TO EXPLAIN THE CONCEPT. VIDEO VERY WELL PLANNED AND EXECUTED. Vatsa BANGALORE

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I was lacking behind my class because I didn't understand my teacher explanation but now my mole concept is crystal clear tysm sir .

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*Sandeep Sir explanation with Simplicity is like no other* 🇮🇳🥳

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Sir you are a great teacher. You make each and every concept very clear. At first I was very weak at physics and chemistry. But with your help I stood first in the class sir. Thank you very much sir.

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Kollam nalla pokkal paavam like kittiyilla😀😀

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This is the perfect explanation ever..

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Yes

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This vide iam iam listening at 11 pm for my exam tq sir for your support iam blessed

[@aadityah2741]

Sir, you have taught this so wonderfully that now the concept is clear.No one else has been able to explain this earlier,so beautifully and with so much clarity.Thankyou Sir!!

[@ManochaAcademy]

Glad to hear that

[@ajjKshorts]

Now the concept of mole is totally clear.....😊......Thank you so much dear sir.....💙

[@mrthree6034]

It becomes very easy when we try to understand it practically 😃!!! Thaks a lot sir.......

[@ManochaAcademy]

Most welcome

[@mrthree6034]

@@ManochaAcademy 🥰

[@abhimurali3911]

I don't know whether there is a better way of explaining this topic.. Thank you sir

[@ManochaAcademy]

Happy to help

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I wish my school have teacher like u

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You are the best science teachr I have ever seen 🔥🔥🔥

[@ManochaAcademy]

Thanks

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i have seen many videos but i don't understand mole concept but your video was the best

[@silladhanalakshmi71]

Your explanation is nice in before time I didn't understand chemistry but now I seen your video now chemistry is my favourite subject

[@ManochaAcademy]

It's my pleasure

[@rayappah.m.l3292]

@@ManochaAcademy sir pls do video about how ro find atomic mass.

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Nobody is taking about god level editing .....sir is very hard working person......

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Sir no words to appreciate your teaching..extremely helpful.

[@ManochaAcademy]

It's my pleasure

[@Ajaypawar-fo3co]

The only video that could explain the concept

[@ManochaAcademy]

Thanks

[@mramesh6195]

Your explanation changed my life

[@ManochaAcademy]

Great !!!

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God! Chemistry is now my favourite subject and it's all thanks to you. Thanks a lot

[@ManochaAcademy]

Glad to hear that

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[@ManochaAcademy]

Most welcome

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[@ManochaAcademy]

Thanks for liking

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Thank you sir , your are the best teacher because you are teaching in theory and practice also😍🙏🏻🙏🏻

[@ManochaAcademy]

Thanks and welcome

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my favourite channel for revision

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Thanks for your very clear explaining. I'm from Sri Lanka.

[@ManochaAcademy]

Most welcome

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You explained better than my school teachers 💯💕

[@ManochaAcademy]

Thanks. Glad to hear that.

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Haven't seen explanation like this. 😶🔥🔥

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Google recommend me your videos , no doubt this is the best explanation video. Thank you so much for your efforts.❣️❣️❣️

[@ManochaAcademy]

Thank you so much 😀

[@satpalreddy1584]

1st 78 2nd 5 3rd 18. Easy questions but fantastic explanation

[@maheshkothari8316]

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[@ManochaAcademy]

Thanks

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Thanks very much sir when my teacher was teaching I didn't understand anything and now I do .May Almighty continue to give you power to produce more videos

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But rest of the things are awesomely understandable and every concept is clear👍🏼

[@ManochaAcademy]

Great !

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Superb explanation!!! This is one of the best learning videos I have ever seen!!!!! Thank you so much sir

[@ManochaAcademy]

You are most welcome

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Yes😅

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Yea

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Yess

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August 😊

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Fr

[@aspirant8788]

Thank you , this topic has always confused me . You made chemistry fun 😀😆, and it had very nice editing . Thank you 🙏

[@ManochaAcademy]

Glad you liked it!

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[@ManochaAcademy]

I appreciate that! Do share with your friends

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Fabulous I've seen 100 of videos but u ra legend....❤️

[@ManochaAcademy]

Thank you so much 😀

[@sriadarsini]

FINALLY! one video ACTUALLY helped omg!

[@ManochaAcademy]

Happy to help

[@shauryaseam4597]

This video removed all the MOLES from my mind.. Thank You sir!

[@krish11984]

lol

[@mukdesushilkumar9040]

Perfect explanation sir👍👍

[@ManochaAcademy]

Thanks for liking

[@angadsingh6764]

Now I am relaxed that I understood the chapter's basics . I got stuck between the conventions of the chapters so I have to come for the basic clearance ..

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[@ManochaAcademy]

Most welcome

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The excellence of your class is in your simplycity .....

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Perfect explaination sir.... It helped me a lot.

[@ManochaAcademy]

Glad it helped

[@biswas7668]

Me too

[@shankarkannan3720]

Oops!! This concept troubled me for years😰... but you clarified it within minutes 😍😃.. thank u very much sir🙏

[@ManochaAcademy]

Glad to hear that

[@pradeepchettianthodi5722]

Brilliant teaching method.

[@ManochaAcademy]

Glad it was helpful!

[@AWAS_AnimeArtistry]

Answers 1. 96 grams 2. 2.1 - 10 number of molecules 2.2 - 224 litres 3. si unit = kg = 0.018 kg Very nice session Sir enjoyed a lot

[@nathanjohn2572]

Unfortunately you are wrong.The answer to question 3 is 2.99 × 10 ^-23 grams.It is the molar mass of H2O divided by Avogadros constant.

[@nvngamergirl2730]

Thank you very much for this wonderful video sir. Had difficulty understanding this concept, it’s all clear now.

[@janetsanagustin5266]

Great teacher. Thank you very much . you are helping me to refresh and confirm concepts. I am a general science teacher but I am loving chemistry. I want to teach chemistry for higher level.

[@ManochaAcademy]

Most Welcome

[@joelbennies4869]

you made me understand mole concept so well sir!! I did not understand in my online class also.. Thank you so much!

[@ManochaAcademy]

Happy to help

[@lullaby2259]

Your classes help me to grasp the concept in no time👍👍

[@ManochaAcademy]

Happy to help

[@vaishnavithesingappen5477]

1. 96g 2. (i) 10 moles (ii) 224 litres 3. 18g Thank you for the wonderful session sir

[@tigerinthejungle_14]

2 (i) 5mol and (ii) 112litres because nitrogen=N2

[@vaishnavithesingappen5477]

@@tigerinthejungle_14 ohh thank you 👍

[@charanpreetreddy9250]

3 is wrong it is 0.31* 10^-23 as mass of 1 molecule is asked not 1 mole

[@manojlambat6578]

😢

[@Namjoonsthighs]

​@@charanpreetreddy9250 it's actually 3x10-²³

[@krishnashankar2285]

Sir ur explanation is too much good sir .And one more that I have to tell u is my school teacher r showing ur video s in the name of online class 😂😂😂😂😂

[@ManochaAcademy]

Thanks for sharing

[@parinagar9297]

Thank you sir. I am cleared with all my doubt 👍👍👍

[@ManochaAcademy]

Always welcome

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You are the best science teacher📕📕.may god bless you sir and your family.

[@ManochaAcademy]

Thanks a lot

[@shiyamdev724]

Really the way of your presence as well your calm dress code also very impressive to study the complex mole 😀 into easy way...

[@_tamizharasanj_4455]

hats off sir...thank u so much... I want u to be my teacher in school,so i can pass easily. once again thanks a lot sir

[@ManochaAcademy]

Most welcome

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Your classes are simply superb

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Kash hame bhi hmari 9th aur 10th ke time aap jaisa teacher mila hota

[@maryannihichukwu6779]

This topic took my teacher a week but I didn't understand. Thank you sir

[@ManochaAcademy]

Glad to hear that

[@priye7600]

Ans.1 mass of 1 mole (NH4)2 CO3--96gm Ans.2 number of moles in 140gm N2--5 Volume at STP--112 liter Ans.3 mass of 1 water molecule --32gm Thanks.. ❤️

[@anilrai3510]

water molecule will be 18 gm not 32 gm

[@imrankhanchankhan350]

For Ans 3 : Need to convert gram to Kg , because SI ubit of mass is KG ( 1000 gram is equal to 1 Kg) , so 18 / 1000 = 0.018 Kg .

[@lihasmola9115]

Ans no. 2 is wrong I think so bcz molar mass of N2 is 14.01 g and if we divide it to 140g answer is 10 moles and multiply by 22.4L then answer is 224 L in STP ...👍

[@gavarabhargavi6598]

Now it's too easy to calculate tqq sir for explaining in such a nice way

[@vnarayan18]

Didn't know that it was so easy. Thank you sir

[@ManochaAcademy]

You are welcome

[@vnarayan18]

@@ManochaAcademy THANKS A LOT!, Looks like i almost got full marks in physics preboards today LOL.

[@kartiksharma01]

Homework Answers: 1) 96 grams 2) 5 moles and 22.4 litres at STP 3) 3×10^-26 kg Thank you Sir ❤️ I studied from your channel in 9th In 11th, it again helped me. Best thing about you is that you give practical knowledge 😀

[@devinarendersingh3651]

How is it 5 moles

[@zfatima289]

@@devinarendersingh3651 divide 140g by 28 g

[@Codyslx]

Can you please explain how you got these awnsers.

[@Codyslx]

@@zfatima289 How'd ya get 28? Oh nvm, its because nitrogen is a molecule, but i don't know how yall got that last answer cause i got 18 grams

[@shivamkukreja1991]

@@Codyslx given mass divided by Molar mass of N2 =140÷28=5 moles To find volume multiply moles with 22.4 5×22.4=112 litres

[@valibaby444]

Thank God for this man 🤲🏾

[@ManochaAcademy]

Welcome

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You explained a complicated subject very easily. Thank you. Love the video.

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Just amazing sir. You one of the best teachers. Hope u will reach 1 million subs soon

[@ManochaAcademy]

Thank you so much 😀 Do check out the courses on our website: www.manochaacademy.com

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[@ManochaAcademy]

It's my pleasure

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Glad to hear that

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[@ManochaAcademy]

You are most welcome

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