4Al+3O2=2Al2O3
n(O2)=0,1*3/4=0,075моль
V(O2)=0,075*22,4=1,68л
n(Al2O3)=0,1*2/4=0,05моль
m(Al2O3)=0,05*102=5,1г
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4Al+3O2=2Al2O3
n(O2)=0,1*3/4=0,075моль
V(O2)=0,075*22,4=1,68л
n(Al2O3)=0,1*2/4=0,05моль
m(Al2O3)=0,05*102=5,1г