$Fe+2HCL\rightarrow FeCl2+H2$x 2x x x$Fe0+2HCl\rightarrow FeCl2+H2O$y 2y y y$FeCO3+2HCl\rightarrow FeCl2+CO2+H2O$ z 2z z z $n_{FeCl2}=0,5\Rightarrow n_{HCl}=2n_{FeCl2}=1 mol$ $V_{ HCl}=1/0,5=2M$ Mtrung bình hỗn hợp=30=$\frac{2x+44z}{x+z}\Rightarrow x=2z$$56x+72y+116\times 2x=43,2$x+y+2x=0,5$\Rightarrow x=0,1 y=0,2$$\Rightarrow m_{Fe}=0,1\times 56=5,6 m_{FeO}=0,2\times 72=14,4 m_{FeCO3}=0,1\times 2\times 116=23,2$%$m_{Fe}12,96$%, %$m_{FeO}=33,33$% %$m_{FeCO3}=53,7$%
$Fe+2HCL\rightarrow FeCl2+H2$x 2x x x$Fe0+2HCl\rightarrow FeCl2+H2O$y 2y y y$FeCO3+2HCl\rightarrow FeCl2+CO2+H2O$ z 2z z z $n_{FeCl2}=0,5\Rightarrow n_{HCl}=2n_{FeCl2}=1 mol$ $V_{ HCl}=1/0,5=2M$ Mtrung bình hỗn hợp=30=$\frac{2x+44z}{x+z}\Rightarrow x=2z$$56x+72y+116\times 2x=43,2$x+y+2x=0,5$\Rightarrow x=0,1 y=0,2$$\Rightarrow m_{Fe}=0,1\times 56=5,6 m_{FeO}=0,2\times 72=14,4 m_{FeCO3}=0,1\times 2\times 116=23,2$%$m_{Fe}12,96$%, %$m_{FeO}=33,33$% %$x_{FeCO3}=53,7$%
$Fe+2HCL\rightarrow FeCl2+H2$x 2x x x$Fe0+2HCl\rightarrow FeCl2+H2O$y 2y y y$FeCO3+2HCl\rightarrow FeCl2+CO2+H2O$ z 2z z z $n_{FeCl2}=0,5\Rightarrow n_{HCl}=2n_{FeCl2}=1 mol$ $V_{ HCl}=1/0,5=2M$ Mtrung bình hỗn hợp=30=$\frac{2x+44z}{x+z}\Rightarrow x=2z$$56x+72y+116\times 2x=43,2$x+y+2x=0,5$\Rightarrow x=0,1 y=0,2$$\Rightarrow m_{Fe}=0,1\times 56=5,6 m_{FeO}=0,2\times 72=14,4 m_{FeCO3}=0,1\times 2\times 116=23,2$%$m_{Fe}12,96$%, %$m_{FeO}=33,33$% %$
m_{FeCO3}=53,7$%