Avogadro's constant, number of moles, number of particles

[negation]

Dealing with these has reminded me why I hated chemistry.

What is the relationship between the above 3? Given atomic weight of nitrogen and Avogadro's constant, can the number of moles be found?

 

[adjacent]

Dealing with these has reminded me why I hated chemistry.

What is the relationship between the above 3?

http://en.wikipedia.org/wiki/Avogadro_constant

 

[adjacent]

Given atomic weight of nitrogen and Avogadro's constant, can the number of moles be found?

You don't need Avogadro's constant there.
1 mole = Atomic mass of Nitrogen

You should never call that atomic weight. It's atomic mass.

 

[Borek]

Given atomic weight of nitrogen and Avogadro's constant, can the number of moles be found?

Number of moles of what?

 

[negation]

You don't need Avogadro's constant there.
1 mole = Atomic mass of Nitrogen

You should never call that atomic weight. It's atomic mass.

That's new. My physics assignment called that atomic weight which throws in further confusion.

1 mole = 1 atomic mass of Nitrogen?

 

[negation]

Number of moles of what?

Nitrogen. Given Avogadro's constant and the atomic mass of Nitrogen being 28g/mol, is it possible to determine the number of moles?

 

[adjacent]

That's new. My physics assignment called that atomic weight which throws in further confusion.

1 mole = 1 atomic mass of Nitrogen?

Oh sorry it should be --> not =

1 mole of Nitrogen --> atomic mass of nitrogen.

So 1 mol --> 28
x -->28
Cross multiply. You get 1 mole again.
Didn't you study that?

1 mole of any element --> atomic mass of that element.I leave all these to Borek. He knows better.

 

[Borek]

Nitrogen. Given Avogadro's constant and the atomic mass of Nitrogen being 28g/mol, is it possible to determine the number of moles?

Number of moles of nitrogen in what?

 

[negation]

Number of moles of nitrogen in what?

In 28g?

 

[Borek]

Yes. This is trivial - 28 g is a molar mass of N₂. If you have 28 g of a substance that has molar mass of 28 g/mol, how many moles do you have?

It is like asking "how many dozens in twelve?".