Answer:
MgCl2
Explanation:
From the question given,
Mass of Mg = 3.6g
Mass of the chloride = 14.25g
Note: the chloride contains Mg and Cl
Mass of Cl = Mass of chloride — Mass of Mg
Mass of Cl = 14.25 — 3.6 = 10.65g
Now we can easily obtain the formula of chloride as follow:
Mg = 3.6g
Cl = 10.65g
Divide by their molar mass
Mg = 3.6/24 = 0.15
Cl = 10.65/35.5 = 0.3
Divide by the smallest
Mg = 0.15/0.15 = 1
Cl = 0.3/0.15 = 2
Therefore, the formula of chloride is MgCl2
