Answer to Question #95670 in General Chemistry for Vee

Question

How many atoms of beryllium are in 1.00 g?

Answer 1

From the definition we know 1 mole of beryllium = 9.07 gm

Again in one mole contain 6.023×10²³ number of molecules ( Avogadro number)

So 9.07 gm of Be contain that much no of molecules

1.00 gm of Be contain = 6.6405 × 10²² number of molecules