Question

calculate the no. of atoms in 0.2g of sodium [na=23n]​

Answer 1

Answer:

Ur ans-

=> We know that 1 mole of atoms contains 6.022×10^23 atoms.

Thus, 0.2 mole of sodium element has 12.044×10^22 atoms in it.

Hope it helps..

Thanku...

Answer 2

Answer:

Explanation:

find the number of moles by dividing given weight with atomic mass to get no. of moles

multiply no. of moles by 6.022*10^23 to get number of atoms.