Răspuns:
Explicație:
2g xg
H2 + Cl2 = 2 HCl
2g 2 . 36,5g
x=2 . 73 : 2=73 g HCl
n=73g : 36,5g/moli=2moli HCl
1mol HCl---------6,023 .10²³ molecule HCl
2moli----------------------y
y= 2 . 6,023 .10²³molecule=12,046 .10²³molecule HCl
MHCl=1 +35.5=36,5------>36,5g/moli