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Lizuuuuuuunya
@Lizuuuuuuunya
September 2021
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Помогите решить пожалуйста!!!
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nikitokkk
1) Al2O3+3H2=2Al+3H2O
n(Al)=10.8*10^3/27=0.4*10^3 моль
n(Al2O3)=
0.4*10^3/2=2*10^2 моль
m(Al2O3)=200*102=20400г
m(боксита)=20400/0.75=27200=27.2 кг
2) CaCO3 = CaO+CO2
n(CaCO3)=500000*0.85/100=4250 моль
m(CaO)=56*4250=238000 г=238 кг
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Answers & Comments
n(Al)=10.8*10^3/27=0.4*10^3 моль
n(Al2O3)=0.4*10^3/2=2*10^2 моль
m(Al2O3)=200*102=20400г
m(боксита)=20400/0.75=27200=27.2 кг
2) CaCO3 = CaO+CO2
n(CaCO3)=500000*0.85/100=4250 моль
m(CaO)=56*4250=238000 г=238 кг