Question

Calculate the number of particles in 69 g of na atoms ​

Answer 1

Explanation:

number of moles of na in 69gm is

69/molecular mass of na

69/23 that is 3 moles

number of particles in n moles is Avogadro number x n

6.022 x 10^23 x 3 = 18.066 x 10^23