Question

Calcule a massa molecular
A) MM (Al2 So4)3
B) MM (Ca Cl2)
C) MM (Cl2)

Answer 1

a) Al2(SO4)3 = 27 x 2 + 32 x 3 + 16 x 12 => 342 u

b) CaCl2 = 40 + 35,5 x 2 = 111 u

c) Cl2 = 35,5 x 2 = 71 u

espero ter ajudado!