Question

Giúp mình với!!!!!!!!!!!!

Answer 1

Fe+H2SO4->FeSO4+H2

x-------x--------------------x

Mg+H2SO4->MgSO4+H2

y-------y---------------------y 

=>56x+24y=18,4

 x+y=0,5 

=>x=0,2 mol=>m Fe=0,2.56=11,2g

y=0,3 mol=>m Mg=0,3.24=7,2g

=>Cm HCl=0,2+0,3\0,2=2,5M