Solutions Chemistry Class 12 | Chapter 2 | CBSE NEET JEE

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Timestamps:
0:00 Introduction
0:45 Solutions
5:53 Solutions:Solvent&Solute
8:55 Solutions:BinarySolutions
9:29 Solutions:Types
9:53 Solutions:GaseousSolution
11:25 Solutions:Liquid Solution
12:37 Solutions:Solid Solution
14:45 Solutions:Concentration
17:15 Solutions:Quantitative concentration
17:52 Mass Percentage
19:36 Volume Percentage
21:05 Mass by VolumePercentage
22:16 Parts per million
25:30 Mole Fraction
27:17 Mole Fraction:Example
32:57 Molarity
34:58 Molarity:Example
38:07 Molality
40:42 Molality:Example
43:44 Solutions:Quantitative Concentration
45:50 Problem 1
48:08 Problem 2
56:17 Problem 3
In this video we will cover:
1.NCERT solutions class 12 Chemistry chapter 2 solutions
2.NCERT Class 12 Chemistry chapter 2 Solutions notes
3.What are solutions?
4.Difference between solution and solvent.
5.Explain binary solutions.
6.Different types of solutions.
7.Calculate the mole fraction of ethylene glycol (C2H6O2) in a solution containing 20% of C2H6O2 by mass.
8.Calculate the molarity of a solution containing 5 g of NaOH in 450 mL solution
9.Calculate molality of 2.5 g of ethanoic acid (CH3COOH) in 75 g of benzene
10.Calculate the mass percentage of benzene (C6H6) and carbon tetrachloride (CCl4) if 22 g of benzene is dissolved in 122 g of carbon tetrachloride
11.Solution of glucose in water is labelled as 10% w/w, what would be the molality and mole fraction of each component in the solution? If the density of solution is 1.2 g mL-1, then what shall be the molarity of the solution?
13.A solution is obtained by mixing 300 g of 25% solution and 400 g of 40% solution by mass. Calculate the mass percentage of the resulting solution.
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Timestamps: 0:00 Introduction 0:45 Solutions 5:53 Solutions:Solvent&Solute 8:55 Solutions:BinarySolutions 9:29 Solutions:Types 9:53 Solutions:GaseousSolution 11:25 Solutions:Liquid Solution 12:37 Solutions:Solid Solution 14:45 Solutions:Concentration 17:15 Solutions:Quantitative concentration 17:52 Mass Percentage 19:36 Volume Percentage 21:05 Mass by VolumePercentage 22:16 Parts per million 25:30 Mole Fraction 27:17 Mole Fraction:Example 32:57 Molarity 34:58 Molarity:Example 38:07 Molality 40:42 Molality:Example 43:44 Solutions:Quantitative Concentration 45:50 Problem 1 48:08 Problem 2 56:17 Problem 3

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INTRODUCTION In normal life we rarely come across pure substances. Most of these are mixtures containing two or more pure substances. Their utility or importance in life depends on their composition. The air around us is a mixture of gases primarily oxygen and nitrogen; the water we drink contains very small amounts of various salts dissolved in it. Our blood is a mixture of different components. Alloys such as brass, bronze, stainless steel, etc. are also mixtures. In this Unit, we will consider mostly liquid solutions and their properties. 1. SOLUTIONS 1.1 Definition A solution is a homogeneous mixture of two or more than two components. 1.3 Strength of Solutions The amount of solute dissolved per unit solution or solvent is called Strength of solution. There are various methods of measuring strength of a solution. : 1. Mass Percentage (%w/w): “It represents mass of a component present in 100 g of solution” Mass of component in the sol. Mass % of a component 100 Total Mass of sol.
2. Volume percentage (%v/v): “It represents volume of a component in 100 mL of solution” Vol. of component Vol. % of a component = ×100 Total vol. of solution For example, common salt in water. 1.2 Classification Solutions which contain two components in it are called Binary Solutions. Substances which are used to prepare a solution are called as Components. The component that is present in the largest quantity is known as Solvent. Solvent determines the physical state in which solution exists. The other component present in lesser quantity in the solution is termed as Solute.

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0:00 Introduction 0:45 Solutions 5:53 Solutions:Solvent&Solute 8:55 Solutions:BinarySolutions 9:29 Solutions:Types 9:53 Solutions:GaseousSolution 11:25 Solutions:Liquid Solution 12:37 Solutions:Solid Solution 14:45 Solutions:Concentration 17:15 Solutions:Quantitative concentration 17:52 Mass Percentage 19:36 Volume Percentage 21:05 Mass by VolumePercentage 22:16 Parts per million 25:30 Mole Fraction 27:17 Mole Fraction:Example 32:57 Molarity 34:58 Molarity:Example 38:07 Molality 40:42 Molality:Example 43:44 Solutions:Quantitative Concentration 45:50 Problem 1 48:08 Problem 2 56:17 Problem 3

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U R God gifted mam.... 💖🥰💖💗 for all students 👀..... 😘❤️

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Hello ! Bhaiya kya aap mujhe bata sakte ho ki kitne chapters apke school mei padha diya hai teachers ney please 💓🙏

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Ur teaching 2.2 million students it means ur also a Parts per million ❤️😄

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*_i would like to thank you mam. i mean literally, i don't think there is any teacher on youtube who teaches the whole chapter that the students can understand easily and within a short period of time._*

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27 ko jinka ekam hai vo attendance lagao 👇

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What a nice way to explain the chapter 👏👏👏👏👏 Really great 👌👌👌👌👌👌 Thanks a lot mam 👍👍 I am your new student in class 12 🙏🙏☺️☺️☺️☺️🥰🥰❤️❤️❤️💯💯💯💯💯

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Aap 1billion bacche ke liye ek hi teacher hein U r the best one 🤩🤩🤩🤩🤩🤩..

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All the best for 2023-24.Batch❤️🥰

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Thank you 💖

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Mam Aap tho calculations ko Easy way mai karna chahiye Aap tho direct answer kaise kar rahe ho!! By the way You're explanation in theoritically is too good..

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I'm able to understand chemistry easily just because of you mam.😊 Thank you so much. ❤

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[@lucky08121]

I'm starting my 12th class with your video & i understand . I like your teaching language 👍

[@mahisrivastava2132]

Board exam ki liye sab ready hai☠️☠️ 2024&25 main Attendance here ✋

[@sahirakhan9366]

Hello I am from Pakistan and I am preparing for entry test and for this your lectures helps me alot Ma Sha Allah you are an all-rounder May Allah blessed you.

[@imspn0132]

Hey dear ! Im from india🤝

[@arymanvikramsingh6909]

@@imspn0132 hey son i am from india 🙂...stop flexing

[@cptinalpha3866]

@@arymanvikramsingh6909 Bsdk Kal School aa Tu , 12B ke Chode

[@gnmps-khokho]

@@arymanvikramsingh6909 u also my son bsdk

[@_Nav_Tweets]

@@arymanvikramsingh6909 😂😂

[@kashishlakhara5649]

I wish we had such teachers in our non virtual life so that we could have finished the syllabus till now.

[@mhtgr1]

Hi

[@Poonamrana6231]

I will talk to you

[@mhtgr1]

@@Poonamrana6231 who's country

[@basharkhan2030]

​@@Poonamrana6231you can also sit with me if you don't have any problem 💖

[@KS_OFFICIAL_69]

Best of luck for 2024-25 students ❤

[@user-wd6ke5nd9m]

Intelligent student Hai batch 2024-25 kai All The Best Campion Friends ❤❤❤❤ 😂😂😂😂 🎉🎉🎉🎉 😢😢😢 😮😮😮 😅😅😅 😊😊😊

[@AnkitGupta-nr8pc]

Mam , Love your teaching style 🙏

[@milangaming8887]

Yaa... Same..... 😊😊

[@VishalShxrma]

Are Arijit sir aap yaha kese🤣🤣🤣🤣

[@milangaming8887]

@@VishalShxrma question 😛😛😛😛nyc🗽 lines

[@VishalShxrma]

@@milangaming8887 😜😜

[@milangaming8887]

@@VishalShxrma hlo vai

[@akshintvarma6702]

Ma'am, for every different problem, so we always have to write the formula before solving or can we directly put on the numbers and solve them?

[@anshulbawane9832]

All the best for 2024-25 batch❤🙌

[@user-yc5yx1qs7c]

best example of ppm is you mam million bacho ke liye ap ho..

[@deveshyadav1909]

24:30 one Roshni mam for 1.51 million students ❤️❤️😊❤️

[@sofiachhabra692]

You are the best teacher forever. Thank you so much mam for crystal clearing of my concepts 🙏🙏

[@ShaileshSP-os5ch]

Mam...really your one of the great ....tanku you for your concerns And helping students with such ah intresting lecture... One of the best source for learning....the way you teach .. literally wow .... Thank you for everything mam...stay blessed ☺️

[@JatinKumar-oz8dx]

Jo bhi like karega bhagvan uski sabhi wish puri karega

[@mohinasharma4279]

Mam u teaching very very well after watching this all my concepts are crystal clear

[@khanawithsona1913]

Ma'am i really understand this chapter without knowing anything about it you are part per million ma'am you explain nicely

[@Komalsable422]

Mam your teaching is brilliant.....😊 Thanku so much Mam.....💜 u are the Teacher........❤😊😊

[@KiranSingh-pc8rd]

Mam aap bahut acha pdate ho ❤ mujhe aaj chemistry first time itne ache se clear hui h 😇

[@rohitvishwakarma7213]

You're so great mam . After watching your videos all my ncert concepts are crystal clear . Thanks you so much mam for the wonderful video lectures . ❤️

[@stutube1881]

Parts per million = 24:49 one teacher for million students true as example and reality too ( but here, there are millions of student studying from u mam ) 😍😍😍

[@ribbeom_.]

Di aap bsc kr rhi ho??

[@Bhardwajnitin]

42:42 no of moles are 0.041 mol

[@subir-amrit]

Best of luck🤞 for 2023-24 all student

[@yashaswinigarje6982]

Ma'am ,the way you teach in an enthusiastic way makes learning fun and memorable. Thank you for making it interesting.❤🧡💛💚🤎🤍💜💙🌹

[@amaarayadav4306]

Sir , the way you teach in an enthusiastic way makes learning fun and memorable.Thankyou for making it interesting. 🙏😊

[@_AnkitYadav-qn7un]

Crystal clear each and every concept 💥✌️

[@rainynotop8722]

Compartments ke liya padh raha hu 🤡🤡

[@75bunnyyy]

Best of luck Bhai🥲🫶🏼

[@Freexstatus]

Real legend

[@Official_priyanka...464]

Hy 2024-2025 .......i wish you all and also me😂 score 98% in board ❤good luck..........All the best champion 🏆

[@karthikvasamsetty3461]

Her experiments makes lectures easy to understand and more attractive. Thank u mam for making study easy🙏🙏

[@pragya600]

I just wonder... how are you able to teach so wonderfully ma’am 😊😊😊😊📚in love with your teaching style 📚📚📚😊thank u so much ma’am for helping us out with your great efforts....😊

[@swayamsharma4375]

Right 😌❤️❤️

[@avaneeshsharma4550]

❤️❤️

[@gayatrisharma8972]

Mam you are so great teacher 🙏🙏🙏 May you live long 😇😇 You are likely as a parts of the million ❣️❣️ 🥰🥰🥰🥰🥰🥰

[@thoshinib9883]

8:31 doubt - how do we consider this water in sugar a solution..as its not homogenous....but solutions are homogenous right?

[@imca-ica-60yadavankitkumar46]

same doubt

[@AJAYKUMAR-es9xw]

Mam because of you "concept is crystal clear" THANK YOU mam

[@rinalpatel9989]

Mam my all concepts are crystal clear by seeing you video !! Your video helped me a lot ! Really your videos are the best to learn online during this pandamic ❤️ Thanks a lot mam 🙂

[@triggered_girlriya]

Batch 2024-25❤😌 all the best man laga ke padhna distract mat hona..taki baad main ye naa kehna pade ki 12th barbad ho gai(like 11th): :)

[@SavitriKumari-yj2qd]

Right bro ❤😊

[@Golupandey51000]

Same to you yrr❤❤

[@yashpandey07]

Thank you mam u taught very well 🎉 my concepts are crystal clear ❤

[@shitlafacts1550]

Apsos hota hai padai kyu chhod di or teachers ne itna dara diya ki chemistry halwa nahi hai but aj pata chala samjane bale ko samjne bale 100 guna better hona chahie 🙏🙏 dhanyawad madam ap bachcho ka bhavishya ho

[@yudvansitannu12]

Sahi

[@vishalsisodiya1467]

After watching this I felt that the teachers are being endangered species 😁

[@Aryanraj75629]

👍👍👍

[@Aryanraj75629]

😀😀😀😀😀

[@bepositive325]

True

[@harbhjansinghharbhjan4855]

New batch 2023-24 best of luck 🐯🐯🐯

[@lohitapant3996]

Please God give good marks all who watching this video❤

[@antosebastian880]

Simply the best I never realised how time passed so quickly also didn’t yawn a single time the way in which she teaches is simply underrated ❤️❤️❤️❤️❤️

[@loseredits788]

Fr

[@Abhii_editz_113]

You are the best teacher who completed the one chapter in one shot vedio by fully understanding skills