... hn hp NO2 v SO2 (ktc) Xỏc nh % v lng ca FeS2 hn hp ban u A 71,53% hoc 81,39% B 93,23% hoc 71,53% C 69,23% hoc 81,39% D 69,23% hoc 93,23% 120 x + 160 y = 5, x = 0, 03 % FeS = 69, 23 TH1: Cú ... hn hp NO v SO2 (ktc) Xỏc nh % v lng ca FeS2 hn hp ban u A 71,53% hoc 81,39% B 93,23% hoc 71,53% C 69,23% hoc 81,39% D 69,23% hoc 93,23% FeS : a Cu2 S : b 120a + 160b = 5, a = 0.0404 Fe ( ... B cha mui Cụ cn dung dch B thỡ thu c bao nhiờu gam mui khan? A 64,4 hoc 61,52 B 65,976 hoc 61,52 C 73,122 hoc 64,4 D 65,976 hoc 75,922 TH :2 Mui l CuSO4 v FeSO4 Fe3O4 : a 3a + b + c = 0, 414...