Răspuns:
nu este clar daca e vorba de So2 sau So3 ?????
a.
r.a. 1S : 2O
r.m. S:O= 32:2X16
=32:32
=1:1
b.
miu= (32gS+32gO)/mol=64g/mol
64g oxid..........32gS.......32gO
100G......................x...............y
x=y=50%
c,
64gSO2............32gS
X.................... 16g
X=m=32gSO2
d.
64gSO2..........32gO
6,4g,,,..................x
x=m=3,2gO
e,
niu=m/miu=320/64mol=5mol SO2
1MOL...........6,022X10²³molec
5mol................x
x= 30,110x10²³molec
1molec...........3 atomi
30,110x10²³molec..........x
x= 90,330x10²³ at
Explicație: