CBSE > Class 11 > Chemistry | CBSE Board | Homework Help

2 L of O2 means 2L / 22.4 L (molar volume) = 0.089 moles of O2. So, from this, we can calculate mass of CO2 as m = No of moles of O2 × 44g = 0.089 × 44 = 3.92 g. // Hope this helps !!!!

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What will be the mass of CO2gas containing the same no. of molecules as in 2 L of Oxygen gas at ST

Posted by Account Deleted 2 years, 4 months ago

CBSE > Class 11 > Chemistry

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Notes according to syllabus of chapter 1 Some basic concepts of chemistry

Posted by Anshika Singh Chauhan Thakur 2 years, 4 months ago

CBSE > Class 11 > Chemistry

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20 g of NaOH molecules weight 40u is dissolved in 2lit solution what is its molarity

Posted by Muskan Gupta 2 years, 4 months ago

CBSE > Class 11 > Chemistry

3 answers

Aashna Meena 2 years, 3 months ago

0.25Molar

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Sonali Singh 2 years, 3 months ago

0.25M

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Samrat Das 2 years, 4 months ago

0.5 m

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How is matter classified at macroscopic level

Posted by Yash Agrawal 2 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Muskan Saha 2 years, 4 months ago

At microscopic level it can be classified as solid, liquid,gas.These are the three physical state of matter. these three state of matter and interconvert able by changing the condition of temperature and pressure. at microscopic level matter can be classified as pure substan and mixtures

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Calculate the mass of glucose in 500g solution if it contains 68% by mass of bottle

Posted by Mangaldeep Patel 2 years, 4 months ago

CBSE > Class 11 > Chemistry

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Calculate the number of oxygen atoms in 9.8 grams of H2SO4

Posted by Vanshika Yadav 2 years, 4 months ago

CBSE > Class 11 > Chemistry

2 answers

Ajay Maurya 2 years, 4 months ago

Is it correct?

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Ajay Maurya 2 years, 4 months ago

0.0653NA

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What is the Difference between morality and molality?

Posted by Krishna Chaudhary 2 years, 4 months ago

CBSE > Class 11 > Chemistry

3 answers

Muskan Saha 2 years, 4 months ago

Molality - the molality refers to the number of moles of a solute per mass of a solvent. Molarity - molarity refers to the number of moles of a solute per volume of a solution.

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Ojasvi Upadhyay 2 years, 4 months ago

Molarity is defined as the no of moles of solute present in 1 litre of solution Molality refers to the no of moles of solute present in 1 kg of solvent

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Arpita Singh 2 years, 4 months ago

I don't even know the answer

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Calculate molarity and molality of the sulphesic acid solution of density 1.198 g cm³ containing 27% by mass of sulphesic acid

Posted by Shintu Yadav 2 years, 4 months ago

CBSE > Class 11 > Chemistry

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Molecular mass of benzene is 78 amu its percentage composition is 92.31% carbon and 7.69% hydrogen determine its molecular formula

Posted by Kushagra Bhardwaj 2 years, 5 months ago

CBSE > Class 11 > Chemistry

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Find the number of 'o' molecule 1 g of o2.

Posted by Tuhina Dey 2 years, 5 months ago

CBSE > Class 11 > Chemistry

2 answers

Alok Yadav 2 years, 2 months ago

1.88x10^21

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Rahul Gupta 2 years, 5 months ago

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Find heimumber d D- mekules ig- , Also,find the

Posted by Tuhina Dey 2 years, 5 months ago

CBSE > Class 11 > Chemistry

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Calculate mole fraction of a component in water, if the molarity of the solution is 3M

Posted by Johnna Mary Thomas 2 years, 5 months ago

CBSE > Class 11 > Chemistry

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Calculate the total number of protons and electrons present in 2 moles of carbon dioxide gas

Posted by Account Deleted 2 years, 5 months ago

CBSE > Class 11 > Chemistry

1 answers

Account Deleted 2 years, 4 months ago

Calculate the total no. Of protons and electrons present in 2 moles of Carbon dioxide gas

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The discovery of nutrn became verey late because

Posted by Dilshad Malik 2 years, 5 months ago

CBSE > Class 11 > Chemistry

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IS THE DERIVATION OF ALL FORMULAS IN THERMODYNAMICS REQUIRED OR ONLY FORMULA IS ENOUGH

Posted by Guru Shankar Shankar 2 years, 5 months ago

CBSE > Class 11 > Chemistry

1 answers

Dilshad Malik 2 years, 5 months ago

The discovery of neutrón particles

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Give the expression for work done in reversible process when pressure is not constant

Posted by Deb Bee 2 years, 5 months ago

CBSE > Class 11 > Chemistry

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Derive the expression for work done on system during compression

Posted by Deb Bee 2 years, 5 months ago

CBSE > Class 11 > Chemistry

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What are the reactions involved in 1. Butyne react with chlorine 2. 2pentyne with Br2

Posted by Deb Bee 2 years, 5 months ago

CBSE > Class 11 > Chemistry

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Chemical formula of alkene

Posted by Arun Kumar 2 years, 5 months ago

CBSE > Class 11 > Chemistry

3 answers

Tejash Mishra 2 years, 5 months ago

CnH2n

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Ananya S 2 years, 5 months ago

CnH2n (where n= 2, 3, 4.....)

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Rushda Sharif 2 years, 5 months ago

Cnh2n

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Important question of chemistry

Posted by Mayank Rajput 2 years, 5 months ago

CBSE > Class 11 > Chemistry

2 answers

Paras Singh 2 years, 5 months ago

Chemical bonding and organic chemistry from class 11

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Sudhanshu Tiwari 2 years, 5 months ago

Nothing

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4 -(1,-1,- dimethyl ethyl) 4, 7- diethyl- 3- methyl decane

Posted by Arpit Sahu 2 years, 5 months ago

CBSE > Class 11 > Chemistry

1 answers

Gagan Tyagi 2 years, 5 months ago

Tomorrow my exam

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For the reaction; kya 3N2O + 2NH3 gives 4N2 + 3H2O

Posted by Il Ma 2 years, 5 months ago

CBSE > Class 11 > Chemistry

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Calculate the number of moles of carbon atoms and hydrogen atom in three moles of ethane.

Posted by . . 2 years, 5 months ago

CBSE > Class 11 > Chemistry

1 answers

Preeti Dabral 2 years, 5 months ago

1 mole of C₂H₆contains 2 moles of carbon atoms
{tex}\therefore{/tex} 3 moles of C₂H₆will C-atoms = 2 {tex}\times{/tex} 3 = 6 moles
1 mole of C₂H₆contains 6 moles of hydrogen atoms
{tex}\therefore{/tex} 3 moles of C₂H₆will contain H-atoms = 3 {tex}\times{/tex} 6 = 18 moles
1 mole of C₂H₆contains Avogadro's no., i.e. 6.02 {tex}\times{/tex} 10²³ molecules of ethane
{tex}\therefore{/tex} 3 moles of C₂H₆will contain ethane molecules = 3 {tex}\times{/tex} 6.02 {tex}\times{/tex} 10²³ = 18.06 {tex}\times{/tex}10²³

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