Significance of the Mole
Significance of the Mole
Significance of Mole:
Mole is a SI unit of measurement for amount of substance (matter) since 1971. One mole of atoms or a compound means Avogadro number of atoms or molecules respectively. Avogadro number is N = .
Illustration: Calculate the volume at STP occupied by (i) 14g of Nitrogen
Solution: Molecular mass of nitrogen = 28u
1 mole of nitrogen 22.4L at STP i.e. 28g of nitrogen occupy = 22.4 liters at STP
14g of nitrogen occupy =
Illustration: Calculate the volume at STP occupied by molecules of oxygen
Solution: 1 mole of molecule =
molecules of oxygen will occupy
=
=
1 Mole of a substance means M grams of that substance, where M is the ________________________. | |||
| Right Option : D | |||
| View Explanation | |||
Find the mass of 8 mole of aluminium atoms ? | |||
| Right Option : C | |||
| View Explanation | |||
Mole is a SI unit of measurement for amount of __________________________ since 1971. | |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [10]
About Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thIt has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Barkha Arora
10thI have spent a wonderful time in Abhyas academy. It has made my reasoning more apt, English more stronger and Maths an interesting subject for me. It has given me a habbit of self studying
Yatharthi Sharma
10thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
