2Al+2NaOH+2H20=2NaAlO2+3H2
氢气4.48/22.4=0.2mol,Al=2/3*0.2=0.133mol,即铝0.133*27=3.6g;
2Al+6HCL=2ALCL3+3H2 Fe+2HCl=FeCl2+H2
氢气6.72/22.4=0.3mol,其中Al产生0.133/2*3=0.2mol,所以Fe产生0.3-0.2=0.1mol,即Fe为0.1mol,5.6g.
2Al+2NaOH+2H20=2NaAlO2+3H2
氢气4.48/22.4=0.2mol,Al=2/3*0.2=0.133mol,即铝0.133*27=3.6g;
2Al+6HCL=2ALCL3+3H2 Fe+2HCl=FeCl2+H2
氢气6.72/22.4=0.3mol,其中Al产生0.133/2*3=0.2mol,所以Fe产生0.3-0.2=0.1mol,即Fe为0.1mol,5.6g.