Question

1.8 x 1022 atoms of Rn to moles of Rn​

Answer 1

1.8×10²² atom of Rn contain 0.03 moles of Rn.

Step-by-step explanation:

Given data:

Number of atoms of Rn = 1.8×10²² atoms

Number of moles = ?

Solution:

we will solve this problem through Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance. The number 6.022 × 10²³ is called Avogadro number.

For example,

1 mole of Rn = 6.022 × 10²³ atoms of Rn

1.8×10²² atoms of Rn × 1mol / 6.022 × 10²³ atoms of Rn

0.3×10⁻¹ moles of Rn

0.03 moles of Rn