Question

The number of gram atoms in 6.4 g of Ca is: (Given, Molar mass of Ca = 40 g mol^-1)
A) 3.2 g atoms
B) 0.16 g atoms
C) 0.8 g atoms
D) 1.0 g atoms

Answer 1

Given,

Gram Molecular Mass of Carbon = 40 g

Mass Given = 6.4 g

Gram Atoms = Mass Given/G.M.M of Carbon

= 6.4/40

= 0.16 g atoms (Option B)

I hope this helps.