Question

number of gram atoms in 10kg of calcium​

Answer 1

Answer:

0.25 gram atoms, 1.50×10  

23

 atoms

Explanation:

Weight of calcium =10 g

Atomic weight of calcium =40 g/g atom

Number of gram atoms of calcium =  

40 g/gatom

10 g

​

=0.25 gram atoms.

The Avogadro's number is 6.023×10  

23

 atoms/ g atom

The number of atoms of calcium =0.25 gram atoms ×6.023×10  

23

 atoms/ g atom

≈1.50×10  

23

 atoms

Answer 2

The number of atoms of calcium =0.25 gram atoms ×6.023×1023 atoms / g atom ≈1.50×1023 atoms.