Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 9 Answered

What is mole
Asked by Shahbazalam1308 | 19 Feb, 2019, 01:49: PM
answered-by-expert Expert Answer
Mole concept-
 
1 mole of a substance is equal to its atomic mass or molecular mass expressed in grams.
 
The atomic mass of sodium is 23 grams.

Therefore, 23 grams of sodium is equal to one mole of sodium atoms.

Similarly, the molecular mass of oxygen (O2) =  2 × Atomic mass of oxygen

                                                                 = 2 × 16 = 32 g

So, 32 grams of oxygen is equal to one mole of oxygen molecules.

1 mole (of anything) = 6.022 × 1023 in number


Answered by Varsha | 19 Feb, 2019, 02:24: PM
CBSE 9 - Chemistry
Asked by rajputanaji290 | 03 Oct, 2023, 09:30: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
Asked by shivalaxmi0205 | 08 Mar, 2023, 07:46: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
Asked by shivalaxmi0205 | 08 Mar, 2023, 07:43: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
Asked by jssjj | 19 Jan, 2023, 07:25: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
Asked by mohammedhaqqani.6b | 14 Jun, 2022, 02:51: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
Asked by gauravsingh36428 | 14 Mar, 2022, 07:44: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
Asked by gillsaabjashanpreetsingh3 | 16 Jan, 2022, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Chemistry
Asked by prachisharma772007 | 16 Jan, 2022, 11:12: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×