Question

How many iron atoms are present in 3.0 mol of iron metal?

Answer 1

There are 1.806×10²⁴ atoms in 3 moles of iron.

Step-by-step explanation:

Step 1:

Data obtained from the question

Number of mole of Fe = 3 moles

Number of atom =?

Step 2:

Determination of the number of atom.

From Avogadro's hypothesis, we understood that:

1 mole of Fe = 6.02×10²³ atoms

Therefore,

3 moles of Fe = 3 × 6.02×10²³ atoms

3 moles of Fe = 1.806×10²⁴ atoms

Thus, 3 moles of iron, Fe contains 1.806×10²⁴ atoms.