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        1. ijW(xu)dȤСM̽Fcķ(yng),O(sh)Ӌ(j)ˈD1D2ʾbM(jn)Ќ(sh)(yn)

          1f(shu)SO2wa(chn)Č(sh)(yn)F(xin)                                 
          2D2Ќ(do)eҪÞ                                             
          3bЈD2еNaOHҺSO2βֹȾ猢QKMnO4Һͬӿ_(d)Ŀģԇ(xi)KMnO4ҺcSO2(yng)ĻW(xu)ʽ
                                                                  
          4(du)ȃ׌(sh)(yn)byl(f)F(xin)D2bóܸõжwSO2ֹȾh(hun)߀һ(g)dz@ă(yu)c(din)J(rn)                                
          5(yng)һΕr(sh)gֹͣ(yng)sz^ιȡAԇеҺ뵽mˮԇԇxӵijɷNܣ
          ֻFe3+ֻFe2+   󣺼Fe3+Fe2+
          _J(rn)Һijɷ֣xԇ

          AϡHClҺCKSCNҺDKMnO4Һ
          ENaOHҺ     FH2O2Һ
          ԇP(gun)Č(sh)(yn)̽
           
          (sh)(yn)E
           
          (sh)(yn)F(xin)󼰽Y(ji)Փ
          1ȡһ֧ԇμ1-2mLԇҺԇеμӎ׵KSCNҺ
          1                         tf(shu)
          2                         tf(shu)ҺдFe3+t
          2                    
                               
                                                       
                                                      
           

          1BƷtҺɫ 1֣
          2ֹͣӟr(sh)ֹܷƽ≺(qing)𰸾ɣ2֣
          32KMnO4+5SO2+2H2O=K2SO4+2MnSO4+2H2SO4
          4ڿƷ(yng)İl(f)ֹͣ 2֣
          5

           
          (sh)(yn)E
           
          (sh)(yn)F(xin)󼰽Y(ji)Փ
          1ȡһ֧ԇμ1-2mLԇҺԇеμӎ׵KSCNҺ
          1](mi)^쵽Һɫ@׃tf(shu)1֣
          2^쵽ҺɫD(zhun)tɫtf(shu)ҺдFe3+t1֣
          2 ȡһ֧ԇܣ1-2mLԇҺz^ιεμKMnO4Һ 1֣
           μKMnO4ҺҺϼtɫɫtf(shu)ҺкFe2+f(shu)μKMnO4ҺҺϼtɫtf(shu)ҺЛ](mi)Fe2+f(shu)5Fe2+ + MnO4- +8H+ = 5Fe3+ + Mn2+ +4H2
           

          ԇ}1ʹƷtҺɫf(shu)SO2wa(chn)Č(sh)(yn)F(xin)ǣBƷtҺɫ
          2ֹͣӟr(sh)bF͝ԇЉ(qing)pС@һ(do)ֹܷƽ≺(qing)
          32KMnO4+5SO2+2H2O=K2SO4+2MnSO4+2H2SO4
          4׌(yng)_(ki)ʼFzһ׌|׌(yng)ֹͣr(sh)Fzx@ӱڿƷ(yng)İl(f)ֹͣ
          5Fxc軯⛷(yng)ѪtɫҺôˁ(li)z(yn)r(ji)Fxӣr(ji)Fxӵęz(yn)ǵ߀ԭFxӱiȻ軯⛁(li)M(jn)д_
          c(din)Fxәz(yn)P(gun)֪R(sh)

          (x)(c)ϵд
          P(gun)(x)}

          ĿлW(xu) (li)Դ (sh)(yn)}

          ijW(xu)СMbÌ(du)F仯|(zh)M(jn)̽شP(gun)(wn)}
          1ԓСMͬW(xu)ƵÚF^L(zhng)r(sh)gDaʾbÌ(du)M(jn)в

          ijͬW(xu)IJǣȊAoֹˮAKʹA_(ki)ʼ(yng)(sh)(yn)B^쵽ĬF(xin)                                                                       
                                                                                 
          ڞ_(d)(sh)(yn)?zi)_IJ                                                                       
          Bаl(f)(yng)xӷʽ                                                                       
          2(dng)bõČ(sh)(yn)Y(ji)ȡA܃(ni)(yng)õҺ^՚СɺõFeSO4ٸߜџP(gun)búͲȥ¼tɫwֽr(sh)a(chn)ĚwDbʾbͨ^(gu)ϴbY(ji)ԇܼ׃(ni)F(xin)ɫԇ҃(ni)ƷtҺtɫȥش
          ÷ʽʾԇܼ׮a(chn)ɫԭ                                                                       
                           
          ڞ(yn)CtɫwɷM(jn)²                                                                       
                                                                                 
          ۈDbбbõ               
          ܸ(j)(sh)(yn)F(xin)(xi)A܃(ni)Һɺڸߜџֽr(sh)l(f)(yng)ĻW(xu)ʽ                                     

          鿴𰸺ͽ>>

          ĿлW(xu) (li)Դ (sh)(yn)}

          F(xin)NaHCO3Na2CO3xH2OĻ˜y(c)xֵijͬW(xu)DʾbM(jn)Ќ(sh)(yn)(CaCl2AʯҾ)

          (1)Abõ:________________________________________________________________
          (2)Bbõ:_______________________________________________________________
          (3)Cbõ:_________________________________________________________________
          (4)bAԇbNaHCO3Na2CO3xH2OĻ3.7 gþƾӟᵽ(yng)ȫ˕r(sh)B1.89gC0.22 gtxֵ_(ki)_____
          (5)ԓb߀Ǻʹy(c)Y(ji)ƫС(yng)θM(jn)________ʲô___________________________________________________________________________________

          鿴𰸺ͽ>>

          ĿлW(xu) (li)Դ (sh)(yn)}

          ijоСMˆDb̽SO2Fe(NO3)3Һķ(yng)֪10 molL1Fe(NO3)3ҺpH1

          Ո(qng)ش
          1bAз(yng)ĻW(xu)ʽ______________________________
          2ų՚⌦(du)(sh)(yn)ĸɔ_μӝ֮ǰ(yng)M(jn)еIJ_______________________________
          3bBЮa(chn)˰ɫɷ________
          4BЮa(chn)ɫԭ
          1SO2cFe3ԗlNO3(yng)
          2SO2cFe3(yng)
          3ԗlSO2cNO3(yng)
          ٰ2bBз(yng)xӷʽ_________Cԓ_(yng)M(jn)һ_J(rn)________
          ڰ3ֻ茢bBеFe(NO3)3ҺQweҺͬlM(jn)Ќ(sh)(yn)(yng)xԇ________(ĸ)
          a01 molL1ϡ
          b15 molL1Fe(NO3)2Һ
          c60 molL1 NaNO302 molL1}weϵҺ

          鿴𰸺ͽ>>

          ĿлW(xu) (li)Դ (sh)(yn)}

          FeCl3ڬF(xin)I(y)a(chn)Б(yng)ÏVijW(xu)оԌW(xu)(x)СMģMI(y)Ƃo(w)ˮFeCl3øa(chn)ƷFeCl3ҺжH2S
          I(jng)Yϵ֪o(w)ˮFeCl3ڿ՚׳ӟA?c)O(sh)Ӌ(j)Ƃo(w)ˮ FeCl3Č(sh)(yn)bʾDӟἰAbȥE£

          ٙz(yn)bõĚ
          ͨCl2sMbеĿ՚⣻
          þƾFм·ӟ(yng)
          ܡ
          wϵsֹͣͨCl2øH2sMCl2ռܷ
          Ո(qng)شІ(wn)}
          1bAз(yng)ĻW(xu)ʽ                                
          2ڢ۲ӟɵğFeCl3󲿷M(jn)ռeڷ(yng)AҶҪʹeFeCl3M(jn)ռڢܲ                                                     
          3EֹFeCl3ȡĴʩУE̖(ho)                 
          4](mi)bCO(sh)Ӌ(j)(hu)(do)                                            
          5xӷʽʾ̓Ebúԇã                    
          6bDеĸa(chn)ƷFeCl3ҺH2Sõ|(zh)
          Ո(qng)(xi)(yng)xӷʽ                                 
          򡢷(yng)Y(ji)ռùwȫϡ}СMͬW(xu)(du)Һ(yng)xӵijɷN^c(din)ֻFe3+ֻFe2+                         
          ̽ҺĽM(sh)(yn)£

          (sh)(yn)E
          (sh)(yn)F(xin)
          (sh)(yn)Y(ji)Փ(yng)xӷʽ
          ȡҺԇУKSCNҺ
           
                          
          f(shu)O(sh)ڲO(sh)ٻ۳xӷʽ              
          ȡҺԇУ KMnO4Һ
          Һϼtɫȥ
           
          f(shu)                                                                      
           
          C(sh)(yn)ҺкеĽ(yng)x                                         

          鿴𰸺ͽ>>

          ĿлW(xu) (li)Դ (sh)(yn)}

          ijͬW(xu)ڌ(sh)(yn)Fecˮⷴ(yng)Č(sh)(yn)bD҃ɷN

          ֪BзFcʯ޽qĻCзŵǸEƾG鎧FzW(wng)ֵľ
          (du)ȃbشІ(wn)}
          1ΙzbõĚԣ                                                      
          2bНɳӵǣ                                     
          3B̎l(f)(yng)ĻW(xu)ʽ                                    
          4Q(chng)ȡmgFcmʯ޽qȻӟo(w)wųռĚwweQ(bio)(zhn)rVLF۵D(zhun)ʞ                        гӋ(j)ʽػ(jin)
          5C(yng)Ĺwк+3r(ji)FeԓͬW(xu)ȡԇУһ}ʹwܽ^(gu)V?yn)VҺеμKSCNҺY(ji)^쵽Һɫ](mi)׃(jng)^(gu)˼ԓͬW(xu)J(rn)ˬF(xin)f(shu)(yng)Ĺwв+3r(ji)Feǣ           _

          鿴𰸺ͽ>>

          ĿлW(xu) (li)Դ (sh)(yn)}

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

          Ո(qng)شІ(wn)}:
          1Eз(yng)(yng)Muλ򔇰Ŀ                                           
          2EеIJǼӟl(f)                 ʲôܼӟ?                  
          3Ħ}NH4+Fe2+SO42-ęz(yn):
          ټͬW(xu)Ý(rn)              ԇϡ}              Һ(li)z(yn)@Nxӡ
          ͬW(xu)z(yn)еFe2+KSCNҺ               A(y)ڵĬF(xin)ͽY(ji)Փ                             
          ی(sh)HͬW(xu)KSCNҺr(sh)l(f)F(xin)Һ׃ɜ\tɫ(du)ԼķˑɡͬW(xu)(jng)^(gu)м(x)˼J(rn)ͬW(xu)ķǿе@?yn)?u>                                      
          4ͬW(xu)y(c)Ħ}Fe2+ĺQ(chng)ȡ4. 0gĦ}Ʒˮmϡ0.20mol/LKMnO4ҺζKMnO4Һ10.00mL
          ٱ(sh)(yn)ָʾ              (ĸ)

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

          鿴𰸺ͽ>>

          ĿлW(xu) (li)Դ (sh)(yn)}

          ֪Fe(NO3)2ܟֽa(chn)NO2O2Ո(qng)ɱ(ni)ݲشP(gun)(wn)}
          1(du)wa(chn)Feσr(ji)IJ룺
          һֻ@+2r(ji) ֻ@+3r(ji)               
          2Cͨ^(gu)±(yn)CxԇУ 0.01 mol/L KMnO4Һ0.1 mol/L H2SO4Һ3H2O2Һ0.1 mol/LKSCNҺsˮx

          (sh)(yn)
          F(xin)
          ĿĻY(ji)Փ
          E1ȡmֽĹwԇ0.1 mol/L H2SO4Һʹܽ⣬όҺּӵAB֧ԇ
           
          ܽwa(chn)
          E2
           
          ҺкFe3+
          E3
           
          Һв Fe2+
           
          (jng)(yn)C_Ո(qng)(xi)Fe(NO3)2ֽĻW(xu)ʽ                        
          3ijͬW(xu)ǵľlԓֽⷴ(yng)a(chn)Ěwľl(f)ȼɴóNO2֧ȼĽY(ji)ՓՈ(qng)ДԓY(ji)ՓǷ_f(shu)

          鿴𰸺ͽ>>

          ĿлW(xu) (li)Դ x}

          100mL 2molLH2SO4^(gu)\۷(yng)һض˜p(yng)ʶӰH2Ŀڷ(yng)мm

          A~ҺBcҺCcҺDcҺ

          鿴𰸺ͽ>>

          ͬ(x)(c)