Some Basic Concepts of Chemistry Class 11 | Questions | NEET JEE CBSE

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Molarity is the amount of a substance in a certain volume of solution. Molarity is defined as the moles of a solute per liters of a solution. It is also known as the molar concentration of a solution. The mole is the unit of measurement for amount of substance in the International System of Units. A mole of a substance or a mole of particles is defined as exactly 6.02214076×1023 particles, which may be atoms, molecules, ions, or electrons. In this video, we will cover:
1.Suppose the elements X and Y combine to form two compounds XY2 and X3Y2. When 0.1 mole of XY2 weighs 10 g and 0.05 mole of X3Y2 weighs 9 g, the atomic weights of X and Y are.
2.Dissolving 120g of urea (Mw=60) in 1000g of water gave a solution of density 1.12gmL−1. The molarity of solution is:
3.20.0 mg of a magnesium carbonate sample decomposes on heating to give carbon dioxide and 8.0 mg magnesium oxide. What will be the percentage purity of magnesium carbonate in the sample? [Atomic weight of Mg=24]
4.1g of a carbonate (M2CO3) on treatment with excess HCl produces 0.01186 mole of CO2. The molar mass of M2CO3 in gmol−1 is
5.The total number of electrons present in 18mL of water is ……
6.50.0 kg of N2 and 10.0 kg of H2 are mixed to produce NH3. Calculate the NH3 formed. Identify the limiting reagent in the production of NH3 in this situation.
7.The percentage composition of carbon by mole in methane is:
8.Calculate the molarity of a solution of ethanol in water in which the mole fraction of ethanol is 0.040
9.Carbon and oxygen are known to form two compounds. The carbon content in one of these is 42.9% while in the other it is 27.3%. Show that this data is in agreement with the

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[itsbushu]

Ma'am one more lecture on numericals please🥺❤

[lovelyfatima]

*_"2023 24 students attendance here❤_*
*All the best for your study 🎉🎉🎉*

[deepfunhouse]

Yours teaching style is amazing mam . 😃😃

[aarambhaacademy]

Very Nice Explanation, Thank You miss

[ashrafshaikh]

Mam it's humble request to upload numericals of every chapter cause we do very much mistakes hope you reply

[nirjharadas]

I am progressing from your video..and your learning style motivates me alot.. thank you so much ma'am 💕🥰

[spartan-nzjy]

THANKS MAM IT WAS VERY HELPFUL FOR US TO UNDERSTAND THE MAIN BASIC CONCEPT OF THE QUESTIONS
THANKS MAM

[chiroshreeroy]

Didi You are so Amazing I have no fear In chemistry 😍

[pschyo]

I have never been this interested but now I gain it cuz of the way u teach. Thanks alot 🥺

[IndAvinash]

6:10 Mam, we can simply Subtract equations without multiplying with 3 to get the value of X.

[rajnikumari]

Maam I watched your video of this chapter both the parts but I am unable to solve these questions. Maam can u please tell what should I do to overcome this problem

[latestactionamv]

Mam pls 🙏🏻 upload chemistry's 2nd chapter (atomic structure) soon

[cute_resham]

que 8)
doubt.:
molarity = no. of moles /1 litre of solution.
so in step 1) why you taken volume of H2O (only) = 1 litre. I think it (1 litre) should be C2H5OH+H2O= 1 litre

[shanthan_]

Mam my problem is i can understand the tgeorys easily but cannot solve the numeriacls i cannot even realising to use which formula
Please given any suggestions please 🙏🙏 🥺😢 give reply mam

[hb]

One of the best Teachers for iit preparation 💙💫

[aryanncertlutin]

Ma'am in question 7= the percentage composition of carbon is 75%

[vrindustries]

Di apne jee mains or neet mai se konsa exam clear kra h??

[anushkatiwari]

Thank you so much mam your explanation is very very good and we can understand easily this question so I want to say you that again bring like these questions for neet 2024.

[aniketsharma]

Ma'am dil jeet liya Ma'am aapne ❤️ itna aacha explanation tha apka 😊, thanks ma'am ❤️

[GauravThakur]

Mam, good evening 🙏,
Mam please change the mouse cursor! Jb aap bina likhe kahi point 👉kr rhe hote h to hame pata hi nhii chalta ki mouse cursor kaha h!! Dhoondhna padta h wo chhota sa dot....