2Al2O3=4Al+3O2
m(Al2O3)=51*0,95=48,45;n(Al2O3)=48,45:102=0,475;n(Al)=0,475*20,95;
m(Al)=0,95*27=25,65
2Al2O3=4Al+3O2
m(Al2O3)=51*0,95=48,45;n(Al2O3)=48,45:102=0,475;n(Al)=0,475*20,95;
m(Al)=0,95*27=25,65