Question

Calculate the no of atoms in 0.2 moles of sodium at study rankers

Answer 1

0.2 x6.022 x10^23

= 1.2044 x10^23 atoms.

( 1mole = 6.022x10^23 atoms )

Answer 2

Answer:

We know that one mole of atoms contains 6.022 × 10²³ atoms.

Now,

1 mole of sodium atoms = 6.022 × 10²³ atoms.

So, 0.2 mole of sodium atoms = 6.022 × 10²³ × 0.2 atoms

= 12.044 × 10²² atoms.

This, 0.2 mole of sodium element has 12.044 × 10²² atoms in it.