Question

In a metallic piece of magnesium, 8.46 ×10 24 atoms are present. calculate the amount of magnesium in moles?

Answer 1

We know that 6.022 *10^23 atoms = 1 mole

8.46 ×10 24 atoms * 1 mole /6.022 *10^23 atoms

= 14.05 mole Mg

Answer 2

Answer: The moles of magnesium present in given metallic piece is 14.04 moles.

Explanation:

We are given:

Number of atoms of magnesium = $8.46\times 10^{24}$

According to the mole concept:

$6.022\times 10^{23}$ molecules are present in 1 mole of an element.

So, $8.46\times 10^{24}$ number of molecules will be present in $\frac{1}{6.022\times 10^{23}}\times 8.46\times 10^{24}=14.04moles$ of a magnesium element.

Thus, the moles of magnesium present in given metallic piece is 14.04 moles.