Question

calculate the mass formula of the following compound (1) calcium chloride where ca=40u and cl=35.5u​

Answer 1

Calcium chloride = CaCl2
CaCl2 = 40+(35.5*2)
= 40 + 71
= 111u....

Answer 2

formula of calcium chloride is CaCl₂

mass of calcium is 40 g while the mass of chlorine is 35.5 g.

So, the molecular mass = 40 + 2X35.5

                                       = 111 g