2Al+2NaOH+2H2O=2NaAlO2+3H2
2*27 3*22.4
X 6.72,X=5.4克,即有5.4克铝
2Al+6HCl=2AlCl3+3H2
2*27 3*22.4
5.4 Y,Y=6.72升,即铝与酸置换氢气6.67升.
Fe+2HCl=FeCl2+H2
56 22.4
Z 8.96-6.72=2.24,Z=5.6克,即铁为5.6克.
铝和铁的质量分别为5.4克和5.6克.
2Al+2NaOH+2H2O=2NaAlO2+3H2
2*27 3*22.4
X 6.72,X=5.4克,即有5.4克铝
2Al+6HCl=2AlCl3+3H2
2*27 3*22.4
5.4 Y,Y=6.72升,即铝与酸置换氢气6.67升.
Fe+2HCl=FeCl2+H2
56 22.4
Z 8.96-6.72=2.24,Z=5.6克,即铁为5.6克.
铝和铁的质量分别为5.4克和5.6克.