\(n_{Fe2O3}=\dfrac{8}{160}=0,05\left(mol\right)\)
a) Pt : \(Fe_2O_3+3H_2SO_4\rightarrow Fe_2\left(SO_4\right)_3+3H_2|\)
1 3 1 3
0,05 0,15 0,05
b) \(n_{Fe2\left(SO4\right)3}=\dfrac{0,05.1}{1}=0,05\left(mol\right)\)
⇒ \(m_{Fe2\left(SO4\right)3}=0,05.400=20\left(g\right)\)
c) \(n_{H2SO4}=\dfrac{0,05.3}{1}=01,5\left(mol\right)\)
\(V_{ddH2SO4}=\dfrac{0,15}{2}=0,075\left(M\right)\)
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