How many atoms are in 5.40mol of iron

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

it's c (engineer's do their work with mechanical stuff not on any living being)