Question

Calcular a massa molecular de cada item

a) F2
b) Na Cl
c) Li 2O
d)Ga(OH)
e) H2 SO4
F) H Br

pfvr me ajuda​

Answer 1

Calcular a massa molecular de cada item

a) F2

Ar (F ) = 18,99≈19

Mm (F 2)=19×2 = 36 g /mol

b) Na Cl

Ar (Na ) = 23

Ar(Cl )=35,5

Mm (Na cl )= 23×1 + 35,5×1=58,5 g /mol

c) Li 2O

Ar(Li ) =7

Ar (O)= 16

Mm (li 2O)= 2*7+16=30 g /mol