\(m_X=56x+64y+108x=29.2\left(g\right)\)
\(\Rightarrow164x+64y=29.2\left(1\right)\)
\(n_{H_2SO_4}=\dfrac{80\cdot98\%}{98}=0.8\left(mol\right)\)
Bảo toàn e :
\(3n_{Fe}+2n_{Cu}+n_{Ag}=2n_{SO_2}\)
\(\Rightarrow n_{SO_2}=2x+y\left(mol\right)\)
Bảo toàn S :
\(n_{H_2SO_4}=3n_{Fe_2\left(SO_4\right)_3}+n_{CuSO_4}+n_{Ag_2SO_4}+n_{SO_2}\)
\(\Rightarrow x+y+x+2x+y=0.8\)
\(\Rightarrow4x+2y=0.8\left(2\right)\)
\(\left(1\right),\left(2\right):x=0.1,y=0.2\)