2019
ʵ__________________________________________________________ (3)
ʵ
֤
Ħ
___________________________________________
________________________________________________________________________
(1)Һ NH3 շֽ (2)IFDEH
հҺữųSO2ĸ Fаɫ DƷҺɫ
(3)ȡˮKSCNҺҺ죬˵Ħʣ֮Ħδ
(1)Ħ[(NH4)2Fe(SO4)26H2O]ȷֽ⣬ֽʱͶȣװͼ֪ʯҿ壬ʹ̪ҺɫװCпɹ۲쵽Һ죬ɴ˿֪ĦξֽIJNH3װBҪշֽ塣
(2)ҪSO3(g)SO2(g)N2ڼʵеװAȫƿͨȻҺSO3ͨƷҺSO2ŨƳȥˮռװӵĺ˳ΪAIFDEH
ڲаȻҺмᣬհֹᱵųSO2ĸţSO3ͨȻҺпԲᱵʹƷҺɫװFհҺữųSO2ĸţSO3ʵFаɫSO2ʵDƷҺɫ
(3)ĦʻӣͨƷǷжǷʡ
Ͷ ⶨ
2019
1ⶨij÷ (1)
ȽijֳɷתΪȻijٽؼ㡣 (2)
ڲķӦͨⶨķⶨƷȡ װõƣ
װУAdzװãBCDǸĽװá (3)
ɵͨռУͨʵǰռȻؼ㡣 (4)ζ
õζԭͨк͵ζζԭζȻӦݺٽؼ㡣 (5)ط
ֻҪʱ仯طоʵɡطڿ¶ȵ£ʵ¶ȹϵķͨߣǿ֪ƷܲмɡȶԡȷֽɲϵϢ
2ⶨʵгõļ㷽ϵʽ
ϵʽDZʾֻ֮䡰ʵϵһּʽӡڶಽӦУʼ̬ķӦ̬֮䡰ʵĹϵʾѶಽһɡ ȷȡϵʽĹؼ
ݻѧʽҳΪнʣȷӦнʡ֮ʵĹϵ
Na2S2O3ζˮӦ O22Mn(OH)2===2MnO(OH)2
2019
MnO(OH)22I4H===Mn2I23H2O 2Na2S2O3I2===Na2S4O62NaI ˮNa2S2O3֮ĹϵΪ O2 2MnO(OH)2 2I2 4Na2S2O3
(н) (н)
[] (2017ȫ28)ˮеܽˮ治ȱٵijСõⶨѧУܱߺˮеܽʵ鲽輰ⶨԭ£ .ȡĹ̶
ܽƿɼˮ¼ѹˮ¶ȡˮMn(OH)2Һ(KI)ϣӦMnO(OH)2ʵĹ̶ .ữζ
ˮữMnO(OH)2IԭΪMn2ڰ5minȻñNa2S2O3ҺζɵI2(2S2OI2===2IS4O) ش⣺
(1)ȡˮʱӦˮ棬ҪĿ______________________
(2)Ĺ̶зӦĻѧʽΪ______________________________________
(3)Na2S2O3Һȶʹǰ궨ƸҺʱҪIJձԼƿ________ˮ뾭СȴʹãĿɱ________̼
(4)ȡ100.00mLˮữamolL1Na2S2O3ҺζԵҺ
ָ
ʾ
Ϊ
____________________________________________________________________Na2S2O3ҺΪbmLˮܽĺΪ________mgL1 (5)ζʱζܼ촦ݻᵼ²ⶨƫ________(ߡ͡)
2019
[˼·]
(1)ʿ黯ѧʵȡĴԣӰˮеܽ(Ÿ)
(2)ʿİʽд⡰Ĺ̶
(3)ʿ黯ѧʵԼȡϢڡNa2S2O3ȶ辫ȷƣNa2S2O3Ųⶨ (4)ʿζյжԼϵʽ㡣
(5)ʿؼҵȡNa2S2O3Ĺϵ õⶨˮеܽĺԭζ
(2)ԭӦԭMn(OH)2ΪMnO(OH)2ɴ˿ɵ÷ʽ2Mn(OH)2O2===2MnO(OH)2
(3)һʵŨҺƻҪͲȿԳȥܽʵȷ
(4)ʵƱҺζI2յΪһαҺʱҺɫΪɫҰޱ仯 ݹϵʽO22MnO(OH)22I24Na2S2O3
ɵˮܽĺΪ[(ab103) mol432 gmol1103 mgg1]0.1 L80ab mgL1
(5)յʱݣռҺӦռеᵼ²õĵNa2S2O3ƫСսƫ͡
(1)ʹⶨֵˮеʵֵһ£ (2)2Mn(OH)2O2===2MnO(OH)2 (3)Ͳ (4)һαҺʱҺɫΪɫҰޱ仯 80ab (5)
1̼ĺӰܡ̼һֲⶨǽ̼תΪ壬ò̼װýвⶨ
(1)װAڸ½x˸̼תΪCO2SO2 aijɷ________