a) \(Fe+2HCl\text{→}FeCl_2+H_2\)
n Fe = 2,8:56=0,05 mol = n H2
V H2 = 0,05.22,4=1,12 lít
n HCl = n Fe .2 =0,1 mol
m HCl = 0,1.(1+35,5)=3,65 g
a) PTHH: \(Fe+2HCl\rightarrow FeCl_2+H_2\uparrow\)
b) \(n_{H_2}=n_{Fe}=\dfrac{2,8}{56}=0,05\left(mol\right)\)
\(\Rightarrow V_{H_2}=n.22,4=0,05.22,4=1,12\left(l\right)\)
c) \(n_{HCl}=2n_{Fe}=0,1\left(mol\right)\)
\(m_{HCl}=n.M=0,1.36,5=3,65\left(g\right)\)
a, \(n_{Fe}=\dfrac{2,8}{56}=0,05\left(mol\right)\)
b,
PTHH: Fe + 2HCl → FeCl2 + H2
Mol: 0,05 0,1 0,05
\(V_{H_2}=0,05.22,4=11,2\left(l\right)\)
c, \(m_{HCl}=0,1.36,5=3,65\left(g\right)\)