‪@learnandfunclass11science‬

[@LearnandFunClass12]

📌40% Discount on all courses Google Form - forms.gle/TjSzWfAzhYKwSWcVA 📌Class 11 Detailed Lectures Playlists: Biology - kzbin.info/aero/PL5rBp3kXkJdAMYHBkYj5zR3E4Jxy0sIgK Physics - kzbin.info/aero/PL5rBp3kXkJdB1FyINZNL-cSXF4tiHb7xE

[@ruchi_dubey9415]

Sir molality is best

[@joshiom201]

Molality

[@anamikathakur1757]

molality does not change with temperature because the mass of solvent does not change with the change of temperature

[@abhishekjha8423]

Molality

[@khushpreet__09]

Molality

[@kaitlynswift7821]

I'll answer honestly... This is one of the best videos I've come across on youtube. No irrelevant talk just straight to the point teaching and that too with a very good concept clarity method in a language understood by most. Sir hats off to you!!! No promotion nothing just teaching students for their own benefit. You've earned mine and a lot of other student's respect!

[@Kanishk_singh258]

I know right . Sir is a 💎

[@VikashSingh-wf7yy]

Pudu

[@samriddhisengar6617]

Studying without book but understood everything and was able to solve every q ....tysm sir 😊.... ~New batch 2024-25

[@DhruvBhati-qx6wn]

Same batch

[@xqfrusherlive8975]

Same batch bro

[@DhruvBhati-qx6wn]

@@xqfrusherlive8975 anime lovers

[@sampurakghosh.5152]

Bro same again. 😊

[@DhruvBhati-qx6wn]

@@sampurakghosh.5152 cool which anime currently watching

[@sagamerrr7197]

25:25 as per my weak knowledge , Molality is better as it includes Kilograms(kg) which becomes easy to calculate. Frankly speaking I am just guissing, I dont know I am correct or wrong

[@ShashiSwarnkar-c3m]

H.w Q. Calculate the mass_______________82.0245gmol-1 ? Sol- given , No. Of moles in sodium acetate - 0.375 Molar mass - 82.0245 No. Of moles in 500 ml ---> 0.375/1000×500 0.1875 moles Mass of sodium acetate ----> 0.1875 × 82.0245 15.38 g

[@Saransh-423]

😶😶

[@Meemdigger]

😢

[@TeJASVA.01]

Good yaar.......👏

[@ShashiSwarnkar-c3m]

@@TeJASVA.01 thank you ☺️

[@MALLIKARJUNSheelin-nk3nd]

How did u get to know it's in 1000ml

[@studyguy-gp5ff]

Mass of sodium acetate =15.37979375grams Or 15.38g

[@RoshaniJaiswal-md4tm]

How

[@aku13118]

Mera bhi sem aya

[@rudrakshtank4792]

If "CHEMISTRY" students start making films, *Tera acid mera base *Rang de benzene *Humara beaker aapke pas hai *Life in a Hetero *Laaga apron me daag *3 test tubes *Ajab estimation ka gajab result *Munna bhai HCL *Mr. Ketone *Jab we experiment...! 😜😜Dialogue baazi in chemistry.. *My name is BOND...Covalent Bond! *Rishtey mein to hum tumhare Allotrope lagte hain,naam hai...Diamond! *D-block se darr nahi lagta saheb, F-block se lagta hai! *Ek baar jo maine bond toda to main activation energy ki bhi nahi sunta! *Resonance ko neglect karna mushkil hi nahi na mumkin hai! *Ye electron mujhe dede Carbon! *Ek neutron ki keemat tum kya jano Hydrogen Babu!

[@Ayush02234]

Bhai bhai bhai azab bhai ki gazab shyari😂

[@rudrakshtank4792]

@@Ayush02234 😂

[@aimbotFF792]

Itna type karne mein time waste karne se accha padh hi lete.....

[@rudrakshtank4792]

@@aimbotFF792 btw tum comments padne ki jagah padh hi lete...😁

[@aimbotFF792]

@@rudrakshtank4792 Yeh sahi tha guru😏

[@anushkagautam7082]

25:37 molality is better as it deals with mass and mass is constant and doesn't changes with effect of temp, whereas molarity deals with volume which have chances to change.

[@tecnowithdaddy4042]

anushka from jeewan jyoti i guess 😅 preparing for NEEt

[@anushkagautam7082]

@@tecnowithdaddy4042 unfortunately yes 😂😂 but for 2024

[@3rddegreeyt144]

No morality change with temperature cuz of expansion ya contraction of the liquid with temperature but molality does not change with temperature cuz the mass of solvent does not change with change in temperature.

[@3rddegreeyt144]

The mass of solvent*

[@anushkagautam7082]

@@3rddegreeyt144 so that's what I said you just changed the language. ...

[@TheTpDipak]

41:00 last answer is 0.029mol/l

[@mayankkumar-er1ym]

Same here

[@CuriosityCraveShorts]

Yes 0.029 With Calculator and mine is 0.03 by average 😗

[@blinkyarmy1914]

yep I got the same

[@tiamenlaimsong6366]

​@@CuriosityCraveShorts Yeah it's correct too

[@TechDose123]

Sir you are the best teacher of chemistry❤

[@NISHANT_GOSAI]

📌Topics : 00:00 :- Introduction to Concentration of Solution 03:36 :- Mass Percentage 06:04 :- Volume Percentage 09:56 :- Parts Per Million 15:51 :- What is Molarity ? 19:48 :- What is Molality ? 29:21 :- Mole Fraction 32:40 :- Important Numerical 1 34:21 :- Important Numerical 2 38:03 :- Important Numerical 3

[@NISHANT_GOSAI]

👍👍

[@AryanDeshwal-zf7gt]

Pucha kisine

[@lakhanvirsingh698]

@@AryanDeshwal-zf7gt hn maine

[@idhantbhatt8321]

Har ek video mai koi na koi aisa hota he hai 😂😂😂

[@NaimishSoni-og4gc]

​@@AryanDeshwal-zf7gtyessss😅😅😅

[@sukhjot8667]

WOW! YOUR WAY OF EXPLANATION IS AMAZING SIR!! HATS OFF TO YOU SIR BEST TEACHER OF SCIENCE :)

[@badshahbeast857]

25:30 molality is better because molarity can be affected by changing the temperature while molality of system is function of mass which does not have any effect of temperature

[@IIT24Aspirant]

lmfaoo

[@shernii58]

Bro fir 1 crore rupees kab milenge 😁😁😂😂

[@simrandhillon7584]

molality is better because vol change according to 🌡️ but kg does not varies much

[@ayushmasharma5663]

Hw answer No of moles of CH3COONa = 0.1875mol Mass of CH3COONa = no of moles × molar mass => 0.1875 × 82.0245 = 15.37959375 g ~=15.38 grams ~

[@Lakshiya2008]

Bro yeh no of moles kese nikale bata de

[@ayushmasharma5663]

@@Lakshiya2008 molarity = (no. Of moles of solute) ÷ volume of solution => no. of moles = molarity × volume => no. Of moles = 0.375M×0.5L So no. of moles=0.1875mol

[@Lakshiya2008]

Hii bro tnx for explaining 👍🤗

[@indiancitizen5383]

Iska answer 153.79593750 hoga because 82.0245×1.8750 karne ke baad answer 15379593750 aata hai aur 8 number multiplication karte samay decimal ke baad aate hai toh answer me last ke 8 number chhod ke point lagana padta hai isiliye answer 153.79593750 aayega. Tu ne 15 ke baad hi point laga diya

[@allinonerare2138]

Correct answer:- 30.76 g

[@ayushjaiswal4859]

25:40 molality is better as it deals in kg or gram ligui can be measured in kg but solid can't be measure in volume so i think

[@parthsurmare4518]

Thank you sir for this amazing lecture. Sir aapne recently NEET ka bhi channel khola hai to ye ek request thi meri aapse ki aap please NEET 2024 ke liye bhi uspe videos daaliye. I hope aap ye comment padhe and NEET 2024 me hamara sath de. Thank you sir 🙏🙏

[@ffstatusgamingnizam6658]

Yakin he sir ek neet 2024 ka u tube channel kholenge

[@parthsurmare4518]

@@ffstatusgamingnizam6658 let's hope Aisa hi ho

[@allgamer5327]

Ha sir ko kholna chaiye

[@riya6142]

Yes sir should open a channel for neet

[@vinsgaming3945]

Yes sir ya to fir ek series bhi start kar sakte he sir

[@adarsh5797]

25:35 Molality Is Better Because If we see Solvent Its In kg And We Can Know better If Change the Temperature In Both solution Of Molal Or Molar In molar The Solution Is in litres it May change Their volume As We See In Molal It does not effect in mass Of solution . Hence molality Is Better For Any reason❤

[@lovepunia233]

25:37 :- I think molarity is better because for molality you have to take the volume of solution and at this moment solution has just settled down in my brain as the denominator of all the concentration terms so chances of mistakes are less as well as molarity is easier to pronounce 😀.

[@kesarsharma8679]

No, Molality is better than Molarity as m deals with Mass that does not change with the change in temperature whereas M deals with volume which has chances of changing with the change in temperature. Hence Molality is more reliable than Molarity

[@tanushreebobde378]

Fact :- Nothing is basic in this whole chapter 😅

[@Saransh-423]

😶😶

[@akaanmol2337]

par it is basic? we have learned most of this in lower classes

[@Gautam05_]

You are right bro😂😂

[@mamtatyagi1122]

It's ur fault

[@thegamerclub1698]

​@@akaanmol2337nhi bhai moles ka concept nya hain

[@ridhima-007]

Sir u are the best.. Teacher ever i have seen.. U clear all the concept clearly😂 ...... 2023- 2024 batch attendance here

[@Naveen_gaming41]

Present ma'am ✋🏻

[@amanGupta-ey4il]

Present ma'am

[@anilkumar-z7v7w]

Hii

[@xoc9268]

41:12 ans - 0.029 molL-1 Ans of HW ques - 15.37 moles

[@iamst_._2860]

It's 0.025 mol/l-1

[@lord_sam_yt]

​@@iamst_._2860 no 0.029 molL-¹ is correct answer

[@PeterParker-yu5qj]

bro it,s mass not mole

[@sufyankarimxa3852]

38:00 mass of sodium acetate will be 15.38(15.37959)

[@xoc9268]

Correct ✅....i did it from Calculator 😂

[@vybzcubing7272]

How?

[@sufyankarimxa3852]

@@vybzcubing7272 molarity=no of moles of solute/volume of solution.-------------(1) molarity=0.375(given in question) volume of solution= 500 ml= 0.5 L(given in question) no of mole of solute= molarity×volume of solution--------------------from (1) no of mole of solute= 0.375×0.5= 0.1875-----------------------(2) we know that => moles= given mass/molar mass moles×molar mass= given mass 0.1875×82.0245= 15.38(15.37959) = mass of sodium acetate required.

[@vybzcubing7272]

@@sufyankarimxa3852 got it ...thanks...🙂 Thanks for being so helpful

[@lydialaurenk815]

@@sufyankarimxa3852 tysm...😄

[@arupkumardas7253]

Sir upka parhaneka style bahot sahi lagta hai.... Up please xi & xii chemistry ka sab chapters complete kar dijiye.....

[@dakshkumarsingh7493]

25:30 molality is better as it deals with mass and mass doesn't changes with effect of temp.

[@mannatschannel8311]

26:14 sir both molarity and molality are good at their own part as it helps us to get the no. Of moles in both the parameters of kg and litres !

[@sukhvirkaur3751]

Sir you are the best teacher 👍👏sbb kuj ache se smaj aa jata he jab app pahda te he😇... Sir app jaldi jaldi lectures upload kijiye please class 11th (physics and chemistry k) .... 1 din me 2 lecture (physics and chemistry ) class 11th ka upload kr dijiye ...... School me half syllabus pura hogeya he or ham to app k hi sahare he sir .... its my request sir please jaldi jaldi lectures dhal dijiye🙏🙏😇

[@jyotiyadav7420]

After watching your videos you forced me to leave a comment of appreciation for you... You're so good teacher like seriously If teachers like you join our schools then I'm quite sure students didn't need to join any tutions or any KZbin lectures to study... Keep it up...

[@dreamswithwings2112]

25:40 molality is better because mass doesn't change in any condition but as in molarity volume can vary from container to container and also at different temperatures.....

[@PrakharShrivastava-kf5qh]

No bro you are wrong , volume also doesn't change.

[@ZENITSU_096]

HW > Ans = 15.375 solution > Let mass is Y Let no. of mole is X X/0.5 [LITRE] = 0.375[Molarity] X = 0.375*0.5 X = 3/16 Y/82[moliqular mass] = X [no. of mole] Y = 15.375

[@K13edits]

Thank you 💛

[@ItachiUwU-do5dq]

Amazing teaching skills sir!! 🤩🤩

[@staeberry8690]

Chem :- Aashu sir Phy :- Abhishek sir Bio :- Seep maam 11th - 12th solved done 😉😉

[@Dikshu-g1t]

for me chem and bio same but physics means alakh pandey sir

[@yashkumar1524]

15.37g = mass Of sodium acetate 👍🙏👍

[@vansh7724]

Yess, 15.378750 g to be accurate

[@vybzcubing7272]

How?

[@TastyOp]

Whi

[@_BeasT_PLayS-yt]

@@TastyOp not gram i got that in kg can u give the sol^n

[@IIT24Aspirant]

@@vansh7724 calculator ka choda

[@radhika4336]

Thank you so much sir jii for this awesome lecture 🥰🥰❤🙌🙌🙌

[@aryan_gamer123]

25:30 Molality is better than molarity because Molality depends on mass and mass is always constant. Whereas molarity depends on volume and volume varies with temperature

[@Ritashuggu_6462]

❤❤❤🎉🎉🎉🎉

[@MrSunio-r4u]

Mass of sodium acetate Molarity=0.375 500ml=0.5L Molar mass=82.0245 Mass=Molarity × Volume × Molar mass Mass=0.375 × 0.5 × 82.0245 Mass= 15.37 'I hope it helpful for you'

[@PersonalUse-r1o]

Thanks a lot , I was confused !!

[@RadhaKrishna-iy5zi]

Batch 2023 2024😊😊

[@BaljinderSingh-vl6it]

in my opinion molality is better because of the SI unit being dependent on kg rather than Litre, as no of moles also depends on mass and mass of sovent is also nothing but mass as well.

[@anuradhabhatt3461]

Topics : 00:00 :- Introduction to Concentration of Solution 03:36 :- Mass Percentage 06:04 :- Volume Percentage 09:56 :- Parts Per Million 15:51 :- What is Molarity ? 19:48 :- What is Molality ? 29:21 :- Mole Fraction 32:40 :- Important Numerical 1 34:21 :- Important Numerical 2 38:03 :- Important Numerical 3

[@chiragverma2456]

Anyone batch 2024-2025 😂😂

[@Payalkumari-gz2uu]

Anyone from batch 2024-25😅😊.... 1.1k likes 😱🥹..... thank you very much for so many likes 💖😊

[@PEXGAMING]

Hehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehehhehehehehehehehehehehehehehehehehehehehehehehehehehehehehehe

[@SavitaChauhan-s8o]

Which school😢

[@SaharshPatel-123]

Present

[@divyanikashyap5579]

Yup

[@sakshi1593]

I am also😅

[@devendrathore7279]

Thank your sir for free teaching and such a great teaching

[@bhanupriyabehera6050]

A student who had spent his 9th and 10th with science and fun Now he is in learn and fun

[@RajanParvat-xy3fu]

Mujhe sabse badhiya apka teaching skill laga

[@Akshachauhan028]

Attendance lgao 2024-2025 batch valo😅😅

[@hashmatali1565]

Yes brother I also

[@rakshitkaushik3284]

Present

[@Bhr.rajputgaming8799]

Kon kon T20 world cup 2024 jitne ke baad aaya hai 🥹

[@RamJi-ww6wg]

Bhiari sant roo

[@ShubhamSingh-f4i]

🥹🫶

[@darshanasharma6066]

padhle saale kabka jeet gye PCB/PCM li hai tune comment se acccha padhai kr -_-

[@divyasoni3834]

Molarity is better because we don't have to find out the solvent in it we can just work with the composition provided to us in the question iff the mass of solution is given separately

[@usharanirani3321]

Sir black board is very convenient for us as it makes us to look at screen without any tiredness and it also keeps our eyes cool

[@jatinpanchal7114]

25:37 I think molality is better because of SI unit

[@kartikdhiman1927]

To teacher galt hai tu sahi hai apna kaam kr

[@siddhant1739]

Bro last mai kya answer tha question ka

[@mr.aashikaushik8039]

Molality is better according to me !!!!

[@studysphere455]

Sir need a lecture about empirical formula and molecular formula 🙏

[@Godcuber09]

Jo jo bhi 2024-2025 batch ke hai vo yha attendance do

[@a_king4410]

present

[@krrish.pawar819]

Sir can you please confirm that, Last answer is 0.03 mol/L,🤔...

[@madhujoshi1508]

Mine is 0.25 mol/L😂😂

[@krishraj1575]

@@madhujoshi1508 its 0.029 but round off = 0.03

[@ruchikasingh3578]

Molality is a better form of expressing the concentration because it's value is temperature independent whereas the value of molarity is temperature dependent as the volume of solution changes with change in temperature . Hence molality is a better way of expressing concentration of solution

[@Kashish1452]

Kon kon 24-25 batch se h ........?

[@riyassaroj]

Mee

[@princeyt7099]

Meeeeee😂😂

[@bharatidehury1278]

Me😊

[@saniamazzsania9395]

Kya korega bhai

[@SONAM..004]

😊 me ...

[@bhawanamandiya6765]

Sir you are best teacher ❣️

[@Alexa-lo9dv]

Batch of 2024 - 25 ❤🎉

[@sandhyatimbare9920]

Sir for me your the best online science teacher....and your jokes are amazing 😂🙌🏻

[@swarnadevi7199]

Molality is better ❤ 25:33

[@Gaming_world_channel]

2024-25 batch student attendence here 😎⚔️

[@SanayuChopra]

😂😂

[@Gaming_world_channel]

Kya hua Bhai...​@@SanayuChopra

[@tanpreetsingh1]

Sir u r life saver.may God bless u always

[@Khushi_136-b7k]

Attendance for 2024-25batch

[@Make.it.like.]

I am so excited 11th aap se padhne ko milega 🤓🥲🥰

[@muhammad.shoaib635]

Whats the sir qualification??

[@sanikadivekar6513]

Thank you sir for taking efforts for us 🙏 🙌 👏

[@padhegaindiatabhitohbadheg9266]

25:37 molality is better because we can measure easily any physical and chemical quantity in kg terms

[@minakshipriolkar35]

Thank you sir for this amazing session!!! Your teaching is the best!!

[@Ramnitiosgd]

Molality 25:30

[@vinsgaming3945]

25:37 sir I think molality is better as we dealing in kg

[@DishaGupta-yd5eu]

41:00 The answer for Numerical 3 is, Molarity= 0.029 M, Right?

[@DishaGupta-yd5eu]

@@Anokhiladki-g29 Then what??

[@Shinobu12438]

thanks sir

[@beenatiwari7272]

Thank you sir.... Amazing class😍😍

[@Dipali-dora]

Sir aapke jokes mujhe hamesha pasand aate h 😂😂 20:05

[@kirtipal4852]

Answer of homework question is 15.3795 THANK U SO MUCH SIR YOUR SESSION ARE REALLY VERY HELPFUL FOR ME,THANKS FOR YOUR SUPPORT🥰😇🙏

[@differgaming125]

bhai usme molarity find karni h am I right

[@VANSHIKAA._.1]

Yeah I also got the same answer 👍🏻✅

[@VANSHIKAA._.1]

@@differgaming125 no mass of solute

[@hehehe2106]

@@differgaming125 molarity to di hui hai already , we've to find the mass , uske liye just use the normal formula of molarity , instead of mass put x, and after equals to put the molarity given , equation ban jayegi , then solve it . Solve karne par you've to multiply the given three values and answer will be 15.3

[@BhavishyaKuntal-i5f]

Great lecture. As always

[@sadhnaawasthi326]

Molality is best becouse it's gives a complete information...!! About solution

[@newchopraconscompany]

Molality

[@Albert-ff-07]

11:20 sir ne kiya emotional blackmail 😂

[@huzaifadhanerawala9004]

12:39 best part of the video 😂😂😂😂

[@mahigamer4935]

Thank you sir 😊😊

[@assassingaming5456]

3:27 sir agar koi 1glass alcohol and 1glass water mix kare toh solute konsa hoga solvent konsa

[@Vijay-fr5kh]

Solvent water hoga

[@tushar_am]

Hw question Given Volume = 500ml or 0.5l Molarity = 0.375 Molar mass= 82.0245gmol^-1 By Molarity formula No.of moles = 0.375×0.50 =0.1875 moles Now by mole formula Mass of substance = 0.1875×82.0245 = 15.37959gm

[@durgakanwer5814]

Lagao bhaiyon 2024-25 ki atendance. One like❤

[@RakeshSinghBaghel-lh2bq]

Kon kon 2024-2025 se h jo attend August me kr rhe hai👻☺️

[@GeetaDehariya-pt3bx]

Shukriya ❤😊

[@Rohit-805]

very good video sir

[@proalpha6]

People watching this video 1 day before exam

[@MayankSharma-up3uw]

Molality is better

[@targettias9325]

Molality is better than molarity ...

[@arnavdhama322]

25:36 molality

[@Mscreation404]

Epic line jahan par teacher apko dil or dimag dono se padhate hai......❤

[@s.a.m.r.i.d.d.h.i]

2024-2025 ke student like krna bs 🎉❤

[@rockgameryt3125]

Students which come july 2024- 25 like cmt

[@Toxic_star124]

If this first chapter is ABCD what is paragraphs 😂😂😂

[@chandan205]

Sir please upload more videos of 11th physics and chemistry

[@AartiBhardwaj_01]

25:32 both of these sir ❤❤

[@devdahiya1640]

Attendance for 2024 - 2025 batch

[@devdahiya1640]

Hii

[@devdahiya1640]

Hii

[@epicmaroon]

Sir aap bahut acha padhate haii lekin sach batao na toh pen ki tak tak awaz sun sun ke bahut gussa ata haii

[@_chitransh_]

😂

[@YushitRohida]

25:40 i guess molarity is better as it will be very unusual for the solute to be dissolved in a solid

[@Deadloxgamer-pb9xg]

Nothing is better

[@anushkaJain-c4h]

Bhaii ham toh 24-25 batch k h