500ml = 0,5l
\(n_{H2SO4}=2.0,5=1\left(mol\right)\)
a) Pt : \(Mg+H_2SO_4\rightarrow MgSO_4+H_2|\)
1 1 1 1
1 1 1
\(n_{H2}=\dfrac{1.1}{1}=1\left(mol\right)\)
\(V_{H2\left(dktc\right)}=1.22,4=22,4\left(l\right)\)
b) \(n_{MgSO4}=\dfrac{1.1}{1}=1\left(mol\right)\)
\(C_{M_{MgSO4}}=\dfrac{1}{0,5}=2\left(M\right)\)
Chúc bạn hộc tốt