Question

Se ard 12 gH2. Ce cantitate de apa(g si moli) se obține?
Ah=1
Ao=16​

Answer 1

Răspuns:

MH2 =2×1=2g/mol

MH2O =2×1+16=18g/mol

2×2g................2×18g

2 H2 +O2 => 2H2O

12g...................xg

x=12×2×18/2×2=108gH2O

n=12/2=6moli

2moli...............2moli

2 H2 +O2 => 2H2O

6moli................y moli

y= 6×2/2=6moli H2O