\(n_{Al}=2,2\left(mol\right)\)
\(\Rightarrow n_{e\left(nhuong\right)}=3n_{Al}=6,6\left(mol\right)\)
\(\Rightarrow n_{N2O}=0,1\left(mol\right)\)
\(n_{N2}=0,2\left(mol\right)\)
\(n_{e\left(nhan\right)}=8n_{N2O}+10n_{N2}=2,8\left(mol\right)\)
\(\Rightarrow n_{e\left(tao.muoi.amoni\right)}=6,6-2,8=3,8\left(mol\right)\)
\(N^{+5}+8e\rightarrow N^{-3}\)
\(\Rightarrow n_{NH4NO3}=\frac{3,8}{8}=0,0475\left(mol\right)\)
\(n_{Al}=n_{An\left(NO3\right)3}=2,2\left(mol\right)\) (bảo toàn Al)
\(\Rightarrow m_{muoi}=m_{Al\left(NO3\right)3}+m_{NH4NO3}=506,5\left(g\right)\)