Molecular Formula & Empirical Formula | Class 11 Chemistry Chapter 1 | CBSE 2024-25
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✅ In this video,
✔️ Class: 11th
✔️ Subject: Chemistry
✔️ Chapter: Some Basic Concepts of Chemistry (Chapter 1)
✔️ Topic Name: Molecular Formula & Empirical Formula
✔️ Topics Covered In This Video (By Hemant Sir): This video provides an explanation of the topics 'Molecular Formula & Empirical Formula' from Chapter 1, 'Some Basic Concepts of Chemistry,' for Class 11 Chemistry. Learn all of this and more with Hemant Sir in this detailed lecture.
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00:00 Introduction: Molecular Formula & Empirical Formula
01:32 Molecular Formula
09:29 Empirical Formula
20:40 Relationship between Empirical & Molecular Formula
29:25 Following steps are involved to determine the empirical formula of the compounds
37:10 Topic related Question 1
44:57 Topic related Question 2
56:20 Topic related Question 3
01:02:01 Homework problems
1:03:51 Website Overview
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#class11chemistry #class11chemistrychapter1 #class11chemistryncert #molecularformula #empiricalformula #2024_25 #magnetbrains #mole #somebasicconceptofchemistry #cbse2024_25 #class11 #chemistry
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difference between empirical formula and molecular formula with example
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Пікірлер: 832
Kon kon 2024 mei dekh rha hei😅
@user-sq4vw3qh5r
Ай бұрын
Ma dekh rhi hu 😅
@MR.RB799
Ай бұрын
Hum ❤
@ruqaya1057
Ай бұрын
Mai
@dipeshjoshi8768
29 күн бұрын
Also me 😊
@Aryan-teamvlog
24 күн бұрын
@@user-sq4vw3qh5rmai bhi😅
HW Q1: EF= 3:2:3:8 =Mg3 Si2 H3 O8 MF= Mg6 Si4 H6 O16. Q2: EF= 1:2 = CS2
@MagnetBrainsEducation
Жыл бұрын
MF= CS4 Thank you for your comment! We're glad you found our educational videos helpful in completing your homework. We hope you'll continue to use our videos as a resource for your studies.
@aim_neet3091
11 ай бұрын
Bataya to h ni like or kr ri h comm ko
@khirabdhitanaya5252
11 ай бұрын
@@aim_neet3091 maine tumhe reply kia tha pata nahin tumhare pass nahin gaya. ye dushra account hai.
@KhushiJain-ei9fx
10 ай бұрын
@@MagnetBrainsEducationsir CS2 ana chahiye na
@gursahibramgarhia5587
Ай бұрын
Right 👍
Thanks a lot Sir...😊🙏 This video is very helpful for me..😊 I understand all the topic very well by your explanation...👏💕 Your teaching way is very understanding...🙏👏
@veersinghraghuvanshi-pk7oq
10 ай бұрын
Hiii
Please start class11 english snapshots and hornbill lectures daily ,your content is highly appreciated. As well as physical Education
Relationship se toh main Pareshan hun chemistry qur real life mein 😂 22:35
Homework question answer 1 is Empirical formula: Mg3Si2H4O8 Molecular formula: Mg6Si4H8O16 Answer of 2nd question Empirical formula is CS2
Sir I don't know how can I thank you.....1000 times I am saying to you sir thanku sooo much...Sir your teaching way is masterpiece❤️❤️❤️💝
@zeeshan.alam09
10 ай бұрын
💯
Sir empirical formula to nikal gya tha lekin moleculer formula mai thodi confuse ho gya tha 55:08
I'm blessed that I have you as our Chemistry teacher THANKS for teaching us🙂
You are an amazing teacher sir thank
Sir hi free main toh de rhe ho classes but yeh ad kam krdoo in ad se ap bohot paisa kamate ho kam krro yeh add maza jase ata hai wase hi apki ad ati hai 😮😂
Batch 2024-2025 ❤🙋♀️🙋♀️🙋🏻♂️🙋🏻♂️🙋🏻♀️🙋♀️🙋♀️
57:02 ch20 hoga sir
Sir your teaching way is masterpiece ❤🙏💝
1 E.M =mg3si2h3o8 M. M=n= 2 then, mg6si4h6016 2 E. M=cs2
Nice explanation sir . sir , I think you are god of Chemistry
Sir... Empirical formula =CH2O C:H:O=1:2:1
25:46 180 g hoga sir
Sir Magnet Brains is not taking everyday classes of XI why sir? And sir the rest of the classes link ?
empirical formula = Mg3Si2H3O8 n=2 molecular formula= Mg6Si4H6O16 empirical formula = CS2
CH3= Empirical formula
Thanks sir because of you know i like chemistry too much ❤❤❤
homework Que-1 : Ans 1- empirical formula =Mg3Si2H3O8 Ans 2- molecular formula= Mg6Si4H6O16 Que-2 : Answer- empirical formula= C1S2
@MagnetBrainsEducation
10 ай бұрын
molecular formula= C12S24 Your answers are correct! Keep up the good work!
@raunaksaw2788
9 ай бұрын
@@MagnetBrainsEducationplzz send the method
25:46 sir please note carbon mass is 12 so there will be changes also note 6x1 should be corrected with 12x6
@MagnetBrainsEducation
10 ай бұрын
Thank you for your comment! We really appreciate your feedback and we will definitely correct the mistake in our next video. Thank you for watching our videos and we hope you continue to learn with us!
@harshsingh-mq7ik
17 күн бұрын
Thanks sir😊
Sir 20ko 6.6se divide karenge to 3nhi aayega
Sorry sir but aapne c6h12o6 molar mass Galt kiya apke solution se ans - 114 aa rah he but exact ans 180 he because 72+12+96 = 180
This series is so helpfull for everyone ❤❤❤ Thnx sir
Sir questions 1 hw ka nahi ban raha hai aus main ye 520.8 ko kahan pe aur kaise use kar na hai
Sir hw ke 2que m CS² aara hai ,,par calculator use kiya to CS⁶aara hai
Q.2 carbon = 80℅ Hydrogen = 100-80 = 20℅ Mole of C = 80/12 = 6.6℅ Mole of H = 20/1 = 20℅ Simple whole no. ratio of Mole:- C = 6.6/6.6 = 1 H = 20/6.6 = 3
@ayush_memes3086
Ай бұрын
20/6.6 kab se 3 hone laga
Ques:Ans.2: Empirical formula. CS2
@MagnetBrainsEducation
Жыл бұрын
Thank you so much for your positive feedback on our educational videos! We're so glad you found them helpful in understanding the concept of empirical formulas! Keep up the good work and we hope you'll continue to enjoy our videos!
H/W 1) Empirical formula -Mg3Si2H3O8 2) Molecular formula -Mg6Si4H6O16 2nd question answer CS2
Home wark Q.1 Empirical formula= Mg4 si H3 O4 Molecular formula= 2
@MagnetBrainsEducation
10 ай бұрын
Thanks for watching our educational videos and providing us with your feedback! We're glad you found our videos helpful in completing your homework. Keep up the good work and keep watching our videos for more educational content!
@atifganai1799
9 ай бұрын
Kaise kiya
@MLBBGoldLanepro
9 ай бұрын
Molecular formula 2.667
57:30 EF1:2:1 CH2O
CH4 - methane C2H6 - ethane
@MagnetBrainsEducation
11 ай бұрын
Thank you for your comment! We're glad you found our video helpful in your studies. We offer a variety of educational videos for school students, all for free of cost. We hope you'll continue to use our videos as a resource in your education.
@pritijha212
11 ай бұрын
@@MagnetBrainsEducation yes ofc magnet brains,!!
@AmanKumarRoy101
11 ай бұрын
Hii priti
@pritijha212
11 ай бұрын
@@AmanKumarRoy101 hello
@naveenchandra9110
10 ай бұрын
Q 1 mgsi8ho3
Homework answers:- 2. Empirical formula:- CS2
@MagnetBrainsEducation
11 ай бұрын
Great job! You are correct, the empirical formula for CS2 is CS2.
Thank you so much sir you are the BEST TEACHER of CHEMISTRY😍👌👌🙏💪
48:50 sir answer 3 kaise aaega ... Ans to 3.03 hoga phir usse bhi nearest whole number se multiply krna hoga na
@pritijha212
11 ай бұрын
Hnn
@AbhijeetKeshari-eb6cs
7 күн бұрын
Sahi hai... 3 hi hoga kyuki 3.0 tak hi lete hai
Q1 EF Mg3Si2H3O8, MF Mg6Si4H6O16 Q2 EF CS2
Sir I had solved the given questions. I can understand all the topics because of you
@MagnetBrainsEducation
10 ай бұрын
Thank you so much for your kind words! We're glad you're enjoying the videos and that they're helping you learn. Keep up the good work!
Sir chemistry ki live class kab hogi??
Home work answer Q1. Empirical formula=mg3Si2H3O8 Molecular formula=n=2 Molecular formula =Mg6Si4H6O16 Q2. Empirical formula =CS2
Sirr your teaching skills wonderful 🙌 Sirr your teaching way is masterpiece ... Thank you so much sirrrr Allah bless you I'm watching from Kashmir 👀
@lonesahillonesahil2196
3 ай бұрын
😊
Homework question 1 answer Mg3 Si2 H3 O8 empirical formula Mg6 Si4 H6 O16 molecular formula Answer 2:- CS2
Sir empirical farmula =cH3 and molecular formula c2H6sir right hai yah wrong please reply 🙏
@Vaibhav_Prajapati_112
28 күн бұрын
Yes, this is right😊
54:39 Sir I got the answer before you in question 2 thankyou so much sir for this explanation
Methane 15:24
16:19 CH4 = methane C2H6 = Ethane
@MagnetBrainsEducation
11 ай бұрын
You are absolutely right! We offer the best education videos for school students in India and we are the No.1 Online Education Platform. We make sure that our videos are of the highest quality and are accurate. Thank you for watching our videos and we hope you continue to learn from them.
Homework : Q.1 Sir nahi ban payaa!! Q.2 C : S = 1:1 Empirical Formula = CS
Homework Q1) EF- Mg3Si2H3O8 MF- Mg6Si4H6O16 Q2) EF- CS2
@MagnetBrainsEducation
Жыл бұрын
MF- C12H22S Thanks for taking the time to watch our videos and write a review! We're glad you found them helpful in completing your homework. Keep up the good work!
Ans 1: E.F.- Mg3Si2H3O8 M.F.-Mg6Si4H6O16 Ans2: E.F.- CS2
Sir homework q1 ka answer empirical formula mg2SiH2O4, molecular formula mg8Si4H8O16, q2 ka answer emphirical formula CS2,
Ethane 15:56
Homework question 1. empirical formula--- Mg3SiH3O4 2. molecular formula -Mg9Si3H9O12
15:55 C2H6 ethane
Sir aap correct answers ko pinned kar Diya Karo please
Option a 56:25
Homework - Q.1-Empirical formula =Mg3Si2H3O8 Molecular formula=Mg6Si4H6O16 Q.2-Empirical formula=CS2
Sir empirical f =cH3 Molecular f=C2H6
@MagnetBrainsEducation
10 ай бұрын
You are absolutely right! We offer the best education to students and help them excel in their exams.
@beoffgamer01
10 ай бұрын
2.8
Question 1 = Empirical formula -Mg3Si2H3O8 Molecular formula -Mg6Si4H6O16 Question 2=Empirical formula - C2S
@MagnetBrainsEducation
Жыл бұрын
Molecular formula- CS2 Thank you for watching our educational videos! We're glad you found them helpful in understanding empirical and molecular formulas. Keep up the good work and keep watching our videos for more helpful math and science tips!
@sudhakumari6446.
11 ай бұрын
Mera bhi yahi answers aaya hai
Question no 2) Empirical formula =CS2 But sir Question no 1 nahi ho raha hai. question no 1 main doubt hai ????
@khirabdhitanaya5252
Жыл бұрын
The molecular mass of the empirical formula = (3 x 24) +( 2 x 28 )+ (3 x 1) +( 8 x 16) = 259g Given mass = 520.8g N = given mass/empirical formula mass = 520.8g/259g = 2(2.1) MF = n×EF = 2× Mg3 Si2 H3 O8 = Mg6 Si4 H6 O16
@Poetery557
Ай бұрын
@@khirabdhitanaya5252 want ans of e.f of question 1
Sir you are the best chemistry teacher in the world😊😊
69%💀💀🤡 37:38
Sir agar mne exam me asehe colum bana kar likhe tab to koi khar bari to nahi ho ga na mtlb exam mark perfect milgana ?
@user-ri6kk1ps2f
Ай бұрын
Yes sir
Present sir🖐️1:14
Q.1. Answer EF of MgSiHO= MgSiHO3 Q.2. Answer EF of CS= CS
@MagnetBrainsEducation
11 ай бұрын
Thanks for your comment! We're glad you're enjoying our educational videos. Keep up the good work and you'll be an expert in no time!
𝓡𝓪𝓽𝓸𝓲 1:3
CH4 methane & C2H2 ethane❤
15:41 methane 15:58 Ethane
@MagnetBrainsEducation
Жыл бұрын
Great job! You correctly identified the two types of hydrocarbon molecules present in the video. We're glad you're enjoying the videos and learning from them. Keep up the good work!
1.248 40:56
Ans 1. M.F= Mg4si4h4o16 and E.F= MgSiHo4 Ans 2 . M.F= CS2
1.88 41:00
BESTEST teacher for chemistry ever 👍
CH4=methane C2H6= ethane
Ans: 1 E.f - Mg3si2h3o8. M.f - Mg6si4h6o16. Ans 2 - CS2.
@nancy_980
Ай бұрын
Bhaii si2 and o8 kaise hai🧐
@nancy_980
Ай бұрын
Empirical formula mein
𝓡𝓪𝓽𝓲𝓸 1:2:1
Sir hum neet ki preparation Ghar se kr rahe hain to aap MCQ practice karwayenge kya😊
@MagnetBrainsEducation
Жыл бұрын
Thank you for your question! Yes, we will be posting MCQ practice problems in the near future. Stay tuned and keep up the great work!
Que:Ans.1:: Empirical formula Mg3SI2H3O8. Molecular Formula Mg6Si4H6O16.
@MagnetBrainsEducation
Жыл бұрын
Thank you so much for watching our educational school related videos! We're glad you found them helpful and we hope you continue to watch and learn from them!
Thank you sm👏👍
@MagnetBrainsEducation
Жыл бұрын
Thank you for your support! We're glad you enjoy our videos and we hope you continue to learn from them.
14:6 😂sir up the especial finger
Sir i hve a doubt , at duration 48:50 , in the simple whole no. Ratio coloumn you hve written 20/6.6 = 3 but , if we divide that we get 3.03 and thn it will be multiplied by the nearest whole no. Right !!?
@MagnetBrainsEducation
11 ай бұрын
Thank you for your question! You are correct that if we divide 20/6.6 we get 3.03, but in this case we are looking for the whole number ratio. This means that we are looking for the number of times 6.6 goes into 20. In this case, it goes in 3 times with 2 left over. Therefore, the ratio is 3:2.
@pritijha212
11 ай бұрын
@@MagnetBrainsEducation okay sir 🙂
@pritijha212
11 ай бұрын
@@MagnetBrainsEducationthank you!
SIR what will be The empirical formula of K2SO4
@MagnetBrainsEducation
10 ай бұрын
Thank you for your question! The empirical formula of K2SO4 is K2S2O7.
Homework ques ans -: 1. Molecular formula of Chrysotile asbestos is Mg2 Si4 H6 O8. Empirical formula of Chrysotile asbestos is Mg3 Si2 H3 O8. 2. Empirical formula of carbon sulphate is CS2.
@MagnetBrainsEducation
9 ай бұрын
Molecular formula of carbon sulphate is O4 SC8. Thank you for watching our videos and taking the time to write a comment! We're glad you're finding our videos helpful in your studies. Keep up the good work!
@deepakkumarsingh1047
2 ай бұрын
No, CS2 is correct
@deepakkumarsingh1047
2 ай бұрын
No, CH2 is correct
Ch4 - methane, c2h6- ethane
Sir 6 + 12 + 96 180 kaise hoga apse mistake hui hai 6 * 12 hoga 6 * 1 nahi
@ShivyaSingh-zo7tc
11 ай бұрын
Yes you are right..!!
@abhisheksahu8085
11 ай бұрын
Ha yr
@LoneZohaib-ts4nk
11 ай бұрын
72+12+96=180 of c6h12o6
@devoteeoflordkrishna530
10 ай бұрын
Sir ne 6×1likha hai wrong hai 6×12 aayega answer right hai 180
@ShubhamDhuri-ih4uz
10 ай бұрын
The answer should be 600 not 180
Ch4_methane or c2h6 -ethane
Sir aapka har ek word ka keemat lakh rupees hai ❤🎉😊❤
56:24 option (a) CH2O E.F
@MagnetBrainsEducation
11 ай бұрын
Great job! You got the right answer!
@khushitanwer7224
11 ай бұрын
Thank you sir 😊
Sir question no.4 ka (EF)=Mg9Si6HO2 And (MF) is also same And question no.5 ka (EF)= CS2😊
@MagnetBrainsEducation
9 ай бұрын
Thank you for watching our videos and taking the time to write a comment! We're glad you're finding our videos helpful in your studies. Keep up the good work!
15:39 methane 15:53 Ethane
@MagnetBrainsEducation
11 ай бұрын
You're doing a great job! Keep up the good work!
56:56 a option
Sir percentage value kaise nikla samjh nh aaya 🤔🤔
Sir, I did not match your speed!!!! On 3rd question...
15:57 CH3 methane C2H6 ethane
HW Q1 Empirical Formula Mg3Si2H3O8 Molecular formula Mg6Si4H6O16 Q2 Empirical Formula CS2
Carbon ma..... 6+1 kaisa hua.....?
CH2O = Empirical formula
@MagnetBrainsEducation
Жыл бұрын
Great job! You're right, the empirical formula for CH2O is indeed CH2O. Keep up the good work!
From Pakistan Lecture Mashallah BHT acha smjhaye ha Apka Allah bless You❤
@MagnetBrainsEducation
10 ай бұрын
Thank you for your positive feedback! We're glad you found our lectures helpful in your studies. Wishing you all the best in your educational journey!
empirical formula of Q1 = CH2o
@MagnetBrainsEducation
Жыл бұрын
Thank you so much for writing in and letting us know what you think of our educational videos! We're so glad you find them helpful and informative, and we'll keep working hard to bring you the best content possible. Keep up the good work yourself, and we're sure you'll be able to achieve anything you set your mind to!
C2H6 Chemical name = Ethane