[imath]n_Z[/imath]=0,12
[imath]M_Z[/imath]=44=> [imath]CO_2[/imath] và [imath]N_2O[/imath]
=>[imath]m_Z[/imath]=5,28g
BTKL=>[imath]m_{H_2O}[/imath]=11,7g=>n=0,65
BT H=>[imath]n_{NH_4^+}[/imath]=0,04
kl là [imath]Mg(OH)_2[/imath] => n=0,34
BTĐT: 2.0,34+3.[imath]n_{Al^3+}[/imath]+0,04+1,14=1,14.2+[imath]n_{NO_3^-}[/imath](dư)
BTKL:0,34.24+27.[imath]n_{Al^{3+}}[/imath]+0,04.18+1,14.23+1,14.96+62[imath]n_{NO_3^-}[/imath](dư)=156,84
=>[imath]n_{Al^{3+}}[/imath]=0,18, [imath]n_{NO_3^-}[/imath]=0,12
BT N=>[imath]n_{N_2O}[/imath]=[imath]n_{HNO_3}-n_{NH_4^+}-n_{NO_3^-}(dư)[/imath]=0,08=>[imath]n_{CO_2}[/imath]=0,04=>[imath]n_{CO_3}[/imath]=0,04
BTKL=>[imath]m_{O(oxit)}[/imath]=[imath]m_X[/imath]-[imath]m_{Mg}[/imath]-[imath]m_{Al}[/imath]-[imath]m_{CO_3}[/imath]=1,44=>[imath]n_{O}[/imath]=0,09
=>[imath]n_{Al_2O_3}[/imath]=0,03 (BT O)
=>m=3,06g
Bạn tham khảo nhé, chúc bạn học tốt !