Phản ứng xảy ra:
\(2Al_2O_3\underrightarrow{^{đpnc}}4Al+3O_2\)
\(m_{Al2O3}=1000.50\%=500\left(kg\right)\)
\(\Rightarrow n_{Al2O3}=\frac{500}{102}\left(mol\right)\Rightarrow n_{Al}=2n_{Al2O3}=\frac{500}{51}\left(mol\right)\)
\(\Rightarrow m_{Al}=\frac{500}{51}.27=264,7\left(kg\right)\)
\(\Rightarrow m_{\left(nhom.thu.duoc\right)}=\frac{264,7}{97,5\%}=271,5\left(kg\right)\)