Answer:
5.42 × 10²³ Formula Units
Explanation:
First calculate moles.
Moles = Mass / M.Mass
Moles = 210.55 g / 233.99 g/mol
Moles = 0.8998 moles
Then calculate number of formula units
No. of Formula units = Moles × 6.022 × 10²³ Formula Units
No. of Formula units = 0.8998 mol × 6.022 × 10²³ Formula Units/mol
No. of Formula units = 5.42 × 10²³ Formula Units
