Question

how many moles are in 6g of carbon atoms

Answer 1

There are 0.50 moles precisely.

Explanation:

The molar mass of 12C is 12.0⋅g⋅mol−1.

What does this mean? It means that NA (Avogadro's number =6.022×1023) 12C atoms have a mass of 12.0⋅g.

You have specified 6.0⋅g.

Thus 6.0⋅g12.0⋅g⋅mol−1 = 0.50⋅mol.