00:01
So first of all, we know that the mole concept says that one mole, so one mole of any substance that consists of 6 .022 multiplying 10 raised power 23 atoms for the given substance.
00:15
Okay, so when i am considering carbon, so one mole of carbon that consists of 6 .022 multiplying 10 raised power 23 carbon.
00:35
Carbon atoms so in a part number of carbon atoms so that will be equal to 0 .330 mole multiplying 6 .022 multiplying 10 raster power 23 okay and this avagato number has unit mole inverse actually so what we are saying that since one mole of carbon consists of that much number of atoms so that's why 0 .330 mole that will contain that much number of carbon atoms that is by multiplying with avagadro number so this will be 1 .987 multiplying 10 raised power 23 so that much number of of atoms or we should say carbon atoms.
02:04
Similarly, in b part, number of carbon atoms that will be 24 .0 mole, multiplying 6 .022, multiplying 10 -rest power 23 mole inverse.
02:31
So this will be equal to 144 .52 multiplying 10 risk to power 23.
02:46
And this will be shifting the decimal.
02:49
We can write 1 .44 multiplying.
02:53
So i am shifting the decimal towards left side...