a) \(n_{H_2}=\dfrac{4,48}{22,4}=0,2\left(mol\right)\)
PTHH: Fe + 2HCl --> FeCl2 + H2
0,2<--------------------0,2
=> mFe = 0,2.56 = 11,2 (g)
=> \(\%m_{Fe}=\dfrac{11,2}{24}.100\%=46,67\%\)
=> \(\%m_{Cu}=\dfrac{24-11,2}{24}.100\%=53,33\%\)
b) \(n_{Cu}=\dfrac{24-11,2}{64}=0,2\left(mol\right)\)
PTHH: 2Fe + 3Cl2 --to--> 2FeCl3
0,2-->0,3
Cu + Cl2 --to--> CuCl2
0,2-->0,2
=> \(V_{Cl_2}=\left(0,3+0,2\right).22,4=11,2\left(l\right)\)
a)\(n_{H_2}=\dfrac{4,48}{22,4}=0,2mol\)
\(Fe+2HCl\rightarrow FeCl_2+H_2\)
\(0,2\) \(\leftarrow\) \(0,2\)
\(m_{Fe}=0,2\cdot56=11,2g\)
\(\%m_{Fe}=\dfrac{11,2}{24}\cdot100\%=46,67\%\)
\(\%m_{Cu}=100\%-46,67\%=53,33\%\)
b)\(n_{Fe}=0,2mol\)
\(\Rightarrow m_{Cu}=24-0,2\cdot56=12,8g\Rightarrow n_{Cu}=0,2mol\)
\(2Fe+3Cl_2\rightarrow2FeCl_3\)
0,2 0,3
\(Cu+Cl_2\rightarrow CuCl_2\)
0,2 0,2
\(\Sigma n_{Cl_2}=0,3+0,2=0,5mol\)
\(V=0,5\cdot22,4=11,2l\)