Răspuns:
Explicație:
xg yg 1335 g
2Al + 3Cl2 = 2AlCl3
2.27g 3.71 g 2.133,5 g
x=1335 . 54 : 2 .133,5g=270 g Al
n= 270g : 27g/moli=10moli Al
y=1335 . 3 .71 : 2 .133,5=1065 g Cl
n=1065 g : 71g/moli=15 moli clor
MAlCl3= 27+ 3.35,5=133,5-------> 133,5g/moli
MCl2=2.35,5=71-----> 71g/moli