\(n_{Mg}=\dfrac{2,4}{24}=0,1\left(mol\right)\)
Pt : \(Mg+2HCl\rightarrow MgCl_2+H_2|\)
1 2 1 1
0,1 0,1
\(n_{H2}=\dfrac{0,1.1}{1}=0,1\left(mol\right)\)
\(V_{H2\left(dktc\right)}=0,1.22,4=2,24\left(l\right)\)
Chúc bạn học tốt
\(n_{Mg}=\dfrac{m}{M}=\dfrac{2,4}{24}=0,1\left(mol\right)\)
PTHH: \(Mg+2HCl\rightarrow MgCl_2+H_2\uparrow\)
\(n_{H_2}=n_{Mg}=0,1\left(mol\right)\)
\(V_{H_2}=n.22,4=0,1.22,4=2,24\left(l\right)\)
PT: Mg + 2HCl ---> MgCl2 + H2
Ta có: nMg = \(\dfrac{2,4}{24}=0,1\left(mol\right)\)
Theo PT: \(n_{H_2}=n_{Mg}=0,1\left(mol\right)\)
=> \(V_{H_2}=0,1.22,4=2,24\left(lít\right)\)