Answer:
0.36moles
Explanation:
The number of moles of a substance can be calculated by dividing the number of atoms of such substance (nA) by Avagadro's number (6.02 × 10^23)
That is;
n = nA ÷ 6.02 × 10^23
number of moles = 2.17 x 10^23 ÷ 6.02 × 10^23
n = 2.17/6.02 × 10^(23 - 23)
n = 0.36 × 10°
n = 0.36moles
