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        1. Ӣҽ̾W(wng) > лW > }ĿԔ

          ijWdȤСM̽Fcķ,OӋˈD1D2ʾbMЌ

          1fSO2wa(chn)ČF(xin)                                 
          2D2ЌeҪÞ                                             
          3bЈD2еNaOHҺSO2βֹȾ猢QKMnO4Һͬӿ_ĿԇKMnO4ҺcSO2ĻWʽ
                                                                  
          4ȃ׌bãyl(f)F(xin)D2bóܸõжwSO2ֹȾh(hun)߀һdz@ă(yu)cJ                                
          5һΕrgֹͣsz^ιȡAԇеҺ뵽mˮԇԇxӵijɷNܣ
          ֻFe3+ֻFe2+   󣺼Fe3+Fe2+
          _JҺijɷxԇ

          AϡHClҺCKSCNҺDKMnO4Һ
          ENaOHҺ     FH2O2Һ
          ԇPČ̽
           
          򞲽E
           
          F(xin)󼰽YՓ
          1ȡһ֧ԇμ1-2mLԇҺԇеμӎ׵KSCNҺ
          1                         tf
          2                         tfҺдFe3+t
          2                    
                               
                                                       
                                                      
           

          1BƷtҺɫ 1֣
          2ֹͣӟrֹܷƽ≺𰸾ɣ2֣
          32KMnO4+5SO2+2H2O=K2SO4+2MnSO4+2H2SO4
          4ڿƷİl(f)ֹͣ 2֣
          5

           
          򞲽E
           
          F(xin)󼰽YՓ
          1ȡһ֧ԇܣμ1-2mLԇҺԇеμӎ׵KSCNҺ
          1]^쵽Һɫ@׃tf1֣
          2^쵽ҺɫD(zhun)tɫtfҺдFe3+t1֣
          2 ȡһ֧ԇ1-2mLԇҺz^ιεμKMnO4Һ
           μKMnO4ҺҺϼtɫɫtfҺкFe2+fμKMnO4ҺҺϼtɫtfҺЛ]Fe2+f5Fe2+ + MnO4- +8H+ = 5Fe3+ + Mn2+ +4H2
           

          ԇ}1ʹƷtҺɫfSO2wa(chn)ČF(xin)ǣBƷtҺɫ
          2ֹͣӟrbF͝ԇЉpС@һֹܷƽ≺
          32KMnO4+5SO2+2H2O=K2SO4+2MnSO4+2H2SO4
          4׌_ʼFzһ׌|׌ֹͣrFzx@ӱڿƷİl(f)ֹͣ
          5Fxc軯⛷ѪtɫҺôˁzrFxrFxӵęzǵ߀ԭԡFxӱiȻ軯⛁Mд_
          cFxәzP֪R

          ϵд
          P}

          ĿлW Դ }

          ijWСMbÌF仯|(zh)M̽شP}
          1ԓСMͬWƵÚF^LrgDaʾbÌMв

          ijͬWIJǣȊAoֹˮAKʹA_ʼB^쵽ĬF(xin)                                                                       
                                                                                 
          ڞ_Ŀ_IJ                                                                       
          Bаl(f)xӷʽ                                                                       
          2bõČYȡA܃(ni)õҺ^՚СɺõFeSO4ٸߜџPbúͲȥ¼tɫwֽra(chn)ĚwDbʾbͨ^ϴbYԇܼ׃(ni)F(xin)ɫԇ҃(ni)ƷtҺtɫȥش
          ÷ʽʾԇܼ׮a(chn)ɫԭ                                                                       
                           
          ڞCtɫwɷM²                                                                       
                                                                                 
          ۈDbбbõ               
          ܸ(j)F(xin)󌑳A܃(ni)Һɺڸߜџֽrl(f)ĻWʽ                                     

          鿴𰸺ͽ>>

          ĿлW Դ }

          F(xin)NaHCO3Na2CO3xH2OĻ˜yxֵijͬWDʾbMЌ(CaCl2AʯҾ)

          (1)Abõ:________________________________________________________________
          (2)Bbõ:_______________________________________________________________
          (3)Cbõ:_________________________________________________________________
          (4)bAԇbNaHCO3Na2CO3xH2OĻ3.7 gþƾӟᵽȫ˕rB1.89gC0.22 gtxֵ______
          (5)ԓb߀ǺʹyYƫСθM________ʲô___________________________________________________________________________________

          鿴𰸺ͽ>>

          ĿлW Դ }

          ijоСMˆDb̽SO2Fe(NO3)3Һķ֪10 molL1Fe(NO3)3ҺpH1

          Ոش
          1bAзĻWʽ______________________________
          2ų՚⌦ĸɔ_μӝ֮ǰMеIJ_______________________________
          3bBЮa(chn)˰ɫɷ________
          4BЮa(chn)ɫԭ
          1SO2cFe3ԗlNO3
          2SO2cFe3
          3ԗlSO2cNO3
          ٰ2bBзxӷʽ_________Cԓ_Mһ_J________
          ڰ3ֻ茢bBеFe(NO3)3ҺQweҺͬlMЌxԇ________(ĸ)
          a01 molL1ϡ
          b15 molL1Fe(NO3)2Һ
          c60 molL1 NaNO302 molL1}weϵҺ

          鿴𰸺ͽ>>

          ĿлW Դ }

          FeCl3ڬF(xin)I(y)a(chn)БÏVijWоԌWСMģMI(y)ƂoˮFeCl3øa(chn)ƷFeCl3ҺжH2S
          I(jng)Yϵ֪oˮFeCl3ڿ՚׳⣬ӟAOӋƂoˮ FeCl3Č򞷽bʾDӟἰAbȥE£

          ٙzbõĚ
          ͨCl2sMbеĿ՚⣻
          þƾFм·ӟ
          ܡ
          wϵsֹͣͨCl2øH2sMCl2ռܷ
          ՈشІ}
          1bAзĻWʽ                                
          2ڢ۲ӟɵğFeCl3󲿷MռeڷAҶҪʹeFeCl3Mռڢܲ                                                     
          3EֹFeCl3ȡĴʩУE̖                 
          4]bCOӋ                                            
          5xӷʽʾ̓Ebúԇã                    
          6bDеĸa(chn)ƷFeCl3ҺH2Sõ|(zh)
          Ոxӷʽ                                 
          򡢷Yռùwȫϡ}ᣬСMͬWҺxӵijɷN^cֻFe3+ֻFe2+                         
          ̽ҺĽM£

          򞲽E
          F(xin)
          YՓxӷʽ
          ȡҺԇУKSCNҺ
           
                          
          fOڲOٻ۳xӷʽ              
          ȡҺԇ KMnO4Һ
          Һϼtɫȥ
           
          f                                                                      
           
          CҺкеĽx                                         

          鿴𰸺ͽ>>

          ĿлW Դ }

          ijͬWڌFecˮⷴČ򞣬bD҃ɷN

          ֪BзFcʯ޽qĻCзŵǸEƾG鎧FzW(wng)ֵľ
          ȃbãشІ}
          1ΙzbõĚԣ                                                      
          2bНɳӵǣ                                     
          3B̎l(f)ĻWʽ                                    
          4QȡmgFcmʯ޽qȻӟowųռĚwweQ˜ʠrVLF۵D(zhun)ʞ                        гӋʽػ
          5CĹwк+3rFeԓͬWȡԇУһ}ʹwܽ^VVҺеμKSCNҺY^쵽Һɫ]׃(jng)^˼ԓͬWJˬF(xin)fĹwв+3rFeǣ           _

          鿴𰸺ͽ>>

          ĿлW Դ }

          F}ڿ՚һ㶼ױĦ}[(NH4)2SO4FeSO46H2O]һāF}Ҫ(wn)ܟr׷ֽױ䌍ҵƂԭ:FeSO4+(NH4)2SO4+6H2O=(NH4)2SO4FeSO46H2O
          DȡĦ}ĺҪ̣

          ՈشІ}:
          1EзMuλ򔇰Ŀ                                           
          2EеIJǼӟl(f)                 ʲôܼӟ?                  
          3Ħ}NH4+Fe2+SO42-ęz:
          ټͬWÝ񝙵              ԇϡ}              Һz@Nx
          ͬWzеFe2+KSCNҺ               AڵĬF(xin)ͽYՓ                             
          یHͬWKSCNҺrl(f)F(xin)Һ׃ɜ\tɫԼķˑͬW(jng)^м˼JͬWķǿеģ@                                      
          4ͬWyĦ}Fe2+ĺQȡ4. 0gĦ}Ʒˮmϡᣬ0.20mol/LKMnO4ҺζKMnO4Һ10.00mL
          ٱָʾ              (ĸ)

          KMnO4Һ_       (ʽ򡰉Aʽ)ζС
          ۵ζKcĬF(xin)___               
          ܮa(chn)ƷFe2+İٷֺ___               

          鿴𰸺ͽ>>

          ĿлW Դ }

          ֪Fe(NO3)2ܟֽa(chn)NO2O2Ոɱ(ni)ݲشP}
          1wa(chn)FeσrIJ룺
          һֻ@+2r ֻ@+3r               
          2Cͨ^±CxԇУ 0.01 mol/L KMnO4Һ0.1 mol/L H2SO4Һ3H2O2Һ0.1 mol/LKSCNҺsˮx


          F(xin)
          ĿĻYՓ
          E1ȡmֽĹwԇ0.1 mol/L H2SO4ҺʹܽόҺּӵAB֧ԇ
           
          ܽwa(chn)
          E2
           
          ҺкFe3+
          E3
           
          Һв Fe2+
           
          (jng)C_ՈFe(NO3)2ֽĻWʽ                        
          3ijͬWǵľlԓֽⷴa(chn)ĚwľlȼɴóNO2֧ȼĽYՓՈДԓYՓǷ_fɡ

          鿴𰸺ͽ>>

          ĿлW Դ x}

          100mL 2molLH2SO4^\۷һض£˜pʶӰH2Ŀڷмm

          A~ҺBcҺCcҺDcҺ

          鿴𰸺ͽ>>

          ͬԴ