Cu+2AgNO3===2Ag+Cu(NO3)2 Δm
340 152
m 3.04g
m=3.04×340÷152=6.8g
设 BaCl2 有 x mol,AlCl3有y mol
208x+133.5y=8.91
2x+3y=(24.2-6.8)÷170
解得x=0.03 y=0.0.2
BaCl2%=0.03×208÷8.91×100%=70.03%
Cu+2AgNO3===2Ag+Cu(NO3)2 Δm
340 152
m 3.04g
m=3.04×340÷152=6.8g
设 BaCl2 有 x mol,AlCl3有y mol
208x+133.5y=8.91
2x+3y=(24.2-6.8)÷170
解得x=0.03 y=0.0.2
BaCl2%=0.03×208÷8.91×100%=70.03%