Question

How many atoms are present in a mole of CaCO3 ?

- 2 × Na atoms
- 5 × 6.022x10²³ atoms
- 2 × 6.022x10²³ atoms
- 5 × NA atom
Hey!! Can you say the answer ??

Answer 1

5 x 6.022 x 10²³ atoms

Step-by-step explanation:

There are 5 different atoms that make up a CaCO3 molecule, and since one mole of something is 6.022 x 10²³, there are 5 times that amount of atoms.