Answer:
0.32×10⁻³ mol
Explanation:
Given data:
Number of atom of gold(II) chloride = 1.9×10²⁰ atoms
Number of moles = ?
Solution:
Avogadro number:
The given problem will solve by using 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.
1 mole = 6.022 × 10²³ atoms
1.9×10²⁰ atoms × 1 mol / 6.022 × 10²³ atoms
0.32×10⁻³ mol
