Answer:
2.32 x10^23 atoms
Explanation:
15.1/39.10 x (6.02 x10^23)
= 2.32 x10^23 atoms
First, you divide 15.1 g of potassium by its molar mass. (Molar mass of potassium is 39.10 g). Then you multiply using Avogadro's number (6.02 x10^23) to get your answer.
