Question

Calculate the no. of particles in each of the following
60g of calcium atomatomic mass of calcium =40

Answer 1

HEYA HERE IS YOUR ANSWER--

Number of moles of Ca = Given mass of calcium / Molar mass of calcium 

= 60 / 40 = 1.5 moles 

Answer 2

No.of moles = given mass/atomic mass

=60/40 = 1.5 moles.

No.of particles = no.of moles g Avogadro’s number

=1.5*6.023*10^23
= 9.0345 particles.
This is my answer.
Hope it helps!