Answer:
32.52× 10²³ atoms
Explanation:
Given data:
Number of mole of iron = 5.40 mol
Number of atoms = ?
Solution:
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.
For example,
18 g of water = 1 mole = 6.022 × 10²³ molecules of water
1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen
For 5.40 mole of iron:
55.845 g = 1 mole = 6.022 × 10²³ atoms
5.40 × 6.022 × 10²³
32.52× 10²³ atoms
