Respuesta :

K2CO3 can be thought to contain 6 atoms (2 K, 1 C, 3O). 

If you are given grams of K2CO3 you can divide by the molar mass to get to moles and then multiply by Avogadro's number. 

K= 2 C= 1 O=3 K2CO3= 6 atoms

Potassium carbonate (K2C03)