Задачи номер 2 и 5. Помогите, пожалуйста
M(CuSO4)=64+32+64=160g/mol M(Cu(OH)2)=64+17*2=98g/mol 25g xg CuSO4+2NaOH=Cu(OH)2+Na2SO4 160g 98g x=25*98/160=15.3g n=m/M n=15.3g/98g/mol=0.156mol 5. xg 0.02mol Zn+Pb(NO3)2=Pb + Zn(NO3)2 65g 1 mol x=65*0.02/1=1.3g n=m/M n=1.3g/65g/mol=0.02mol