Avagadro's number

[inaccensa]

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I know this is a basic concept, but I'm really confused now.

Now i know that 6.022*10^23 particles/atoms are present in one mole of a substance.

one mole of carbon = 12gms of carbon

Why can't we say

6.022*10^23 atoms are present in one mole of carbon that has 12 gms of carbon.

one amu = 1/12*12C = 1, is this correct?
why do we say 6.022*10^23 amu = 1 gms--> this is really confusing me

 

[Pisiform]

Avogadro Constant:
It is the number of atoms present in exactly 12grams of Carbon-12 isotope.

this mean twelve grams of Carbon (with Mr = 12) has 6.02 * 10^23 atoms

We can say this:
6.022*10^23 atoms are present in one mole of carbon that has 12 gms of carbon.

1 mole of carbon = 6.02 *10^23 atoms
or
12grams of carbon = 6.02 *10^23

And to be sure:

Q - What information is conveyed by the following symbol C

Ans:
1 mole of carbon atom contains 6.02 *10^23 particles
1 mole of carbon weighs 12 grams
6.02 *10^23 carbon atoms weigh 12 grams

we can use them interchangeably

 

[inaccensa]

thanks. That definitely clarifies it