2 вар-а - Y - Cu(OH)2 (1) и Y - CuCl2 (2);
(1): <span><span>Cu + Cl2 = CuCl2 (X),
CuCl2 + 2KOH = Cu(OH)2 (Y) + 2KCl,
Cu(OH)2 + H2SO4 = CuSO4 + 2H2O;</span>
(2): </span><span>2Cu + O2 = CuO (X),
CuO + 2HCl = CuCl2 (Y) + H2O,
CuCl2 + Ag2SO4 = CuSO4 + 2AgCl.</span>
H2SO4+2NH3 --- (NH4)2SO4
VNH3 = 112/22.4 = 5 моль
vH2SO4 = 1/2vNH3 = 0,25 моль
mH2SO4 = 0,25*98=24,5 гр
mр-ра = 163,3 гр