Question

1. Determine as massas moleculares das substâncias abaixo:

Dados: H = 1 u; C = 12 u; N = 14 u; O = 16 u; S = 32 u;

a) N₂
b) CO₂
c) HNO₃
d) H₂SO₄
e) C₆H₁₂O₆

Answer 1

a) 14×2=28u
b)12×1+16×2=44u
c)1×1+14×1+16×3=63u
d)1×2+32×1+16×4=97u
e)12×6+1×12+16×6=180u