Fe +H2SO4----> FeSO4 +H2
a) Ta có
m\(_{H2SO4}=\frac{200.9,8}{100}=19,6\left(g\right)\)
n\(_{H2SO4}=\frac{19,6}{98}=0,2\left(mol\right)\)
Theo pthh
n\(_{Fe}=n_{H2SO4}=0,2\left(mol\right)\)
m\(_{Fe}=0,2.56=11,2\left(g\right)\)
b) Ta có
n\(_{FeSO4}=n_{H2SO4}=0,2\left(mol\right)\)
m\(_{FeSO4}=0,2.152=30,4\left(g\right)\)
mdd=200+11,2-0,4=210,8(g)
C%=\(\frac{30,4}{210,8}.100\%=14,42\%\)
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