Question

How many atoms of aluminum (Al) are in 2.15 mol of aluminum? answer in units of atoms.

Answer 1

This means that the mass of one mole of aluminium atoms will be 26.982 g . As you know, one mole of any element contains exactly 6.022⋅1023 atoms of that element.

Answer 2

Answer: $1.295x10^2^4atoms$

Explanation:

Using avogadro's number;

$2.15molAl(\frac{6.022x10^2^3atoms}{1molAl})= 1.295x10^2^4atoms$