1/ \(n_{NO}+n_{NO_2}=0,4\left(mol\right)\)
\(n_{NO}=n_{NO_2}=\frac{0,4}{2}=0,2\left(mol\right)\)
\(2.n_{Cu}=3n_{NO}+n_{NO_2}\)
\(\Rightarrow n_{Cu}=\frac{3.0,2+0,2}{2}=0,4\left(mol\right)\)
\(\Rightarrow m=0,4.64=25,6\left(g\right)\)
2/ \(n_{NO}=\frac{5,6}{22,4}=0,25\left(mol\right)\)
\(n_{Ag}+2n_{Cu}=0,75\)
\(108n_{Ag}+64n_{Cu}=35,4\)
Ban tu giai not hpt