Explanation:
As we known that number of moles is equal to mass of a substance divided by its molar mass.
It is given that moles of magnesium chloride is 8.90 mol and its molar mass is 95.211 g/mol.
Therefore, calculate its mass as follows.
No. of moles = [tex]\frac{mass}{\text{molar mass}}[/tex]
8.90 mol = [tex]\frac{mass}{95.211 g/mol}[/tex]
mass = 847.37 g
Thus, we can conclude that mass of given magnesium chloride is 847.37 g.
