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&L333333x&-LYMMM___PPT10i.+'֋D' c = @B Dt' = @BA?%,( < +O%,( < +D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* ++0+ 0 ++0+ 0 ++0+ 0 ++0+ 0 ++0+ 0 ++0+ 0 ++0+ 0 +& 0 Py(  ~  s *(^c   c    c $Sc p <$ 0 c    6`c pK t[S^KMnO4 Fe2+0000Fe3++Mn2+D 2GCK*CKCKCK"1   6fc 0w (JSS^KMnO4+2Cl- Cl2+Mn2+& 2GCKCKCKCK!^B  6Do ^B   6Do dB   <DԔ0     6@pc  0 HH+* 2AI   6uc   HH+* 2AI   6yc @ ` V[SO 2  6}c P0` p V\O(uSO 2  6{c  0 ` @ <SSO 2^B  6Do00 ` ^B  6Do@`^B  6DoPl  Q   Q ,$D 0T  0c  Q ,$D 0 Mn(II) PS OO-NSOb:NMn(III); H3PO4NMn(III)~T, MNO (Mn(III)/Mn(II)) cؚS^vx^jNckck.c   8  Bxc 0 D ,$D 0 jqN$$$"z   )    ),$D 0  0c   ) `K2Cr2O7+Sn2+ Cr3++Sn4+ [O2+Sn2+ Sn4+ >90% 4" NS(uK2Cr2O7vcn[Sn2+ F] 2EMEMEMEM EMEMAEMEM EM IAEMEMEMAEME>)`B  0Dopp`B  0Dop@pMz  '   ',$D 0S  0c   +(KMnO4/Mn2+)=1.51 (Cl2/Cl-)=1.35, 2CKCKCKCKC6  BPc ',$D 0 jqN*  6c  ,$D 0 jqNH  0޽h ? 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&L333333x&-LYMMM x ___PPT10X +<4D ' = @B D ' = @BA?%,( < +O%,( < +D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*+p+0+0 ++0+0 + 0 0b(  ~  s *BP0     c $CP` <$ 0  H  0޽h ? 333___n f ___PPT10F .+XD ' = @B D ' = @BA?%,( < +O%,( < +D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*"%(D' =-o6Bwipe(up)*<3<*"D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*#/%(D' =-o6Bwipe(up)*<3<*#/D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*/J%(D' =-o6Bwipe(up)*<3<*/JD' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*Jg%(D' =-o6Bwipe(up)*<3<*Jg+8+0+0 +i) 0 x@ (      s *T@p<$ 0     6OPT t5.2.3 PSBRNS^s g$    s *VfP0,$D 0 TNjq: 1.44V, 0.56V K = 1030(   AE  A  A  I %Ez  g   ,$D 0fB   6DԔfB   6DԔ     0d  B ba _("  "   BHj  g ]+As(III) As(IV) As(V),,   0n@`,$D 0 .O1.Ce4+'lSAs(III)vS^R$Nekr 2 c c 4   <{ l ,$D 0 u-2MnO4- + 5C2O42- +16H+ = 2Mn2+ + 10CO2 + 8H2O,.CKKCKCKKCKCKCKCKCL   0p  ,$D 0 4_YeS^ba @wMn(II)vNu,S^eg_.  2G@ .   s *f0 ,$D 0 <ꁨRPSS^ 1uNubir,g_wPS\O(uvS^0.'     0,$D 0 >O2. 2 H   0޽h ? &L333333x&-LYMMM___PPT10i.+'֋D' = @B Dt' = @BA?%,( < +O%,( < +D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* ++0+ 0 ++0+ 0 ++0+ 0 ++0+ 0 ++0+ 0 ++0+ 0 ++0+ 0 +& 0 Py(  ~  s *D     c $p <$ 0    6`pK t[S^KMnO4 Fe2+0000Fe3++Mn2+D 2GCK*CKCKCK"1   6H0w (JSS^KMnO4+2Cl- Cl2+Mn2+& 2GCKCKCKCK!^B  6Do ^B   6Do dB   <DԔ0     60 0 HH+* 2AI   6  HH+* 2AI   6H@ ` V[SO 2  6hP0` p V\O(uSO 2  6 0 ` @ <SSO 2^B  6Do00 ` ^B  6Do@`^B  6DoPl  Q   Q ,$D 0T  0X Q ,$D 0 Mn(II) PS OO-NSOb:NMn(III); H3PO4NMn(III)~T, MNO (Mn(III)/Mn(II)) cؚS^vx^jNckck.c   8  B0 D ,$D 0 jqN$$$"z   )    ),$D 0  0   ) `K2Cr2O7+Sn2+ Cr3++Sn4+ [O2+Sn2+ Sn4+ >90% 4" NS(uK2Cr2O7vcn[Sn2+ F] 2EMEMEMEM EMEMAEMEM EM IAEMEMEMAEME>)`B  0Dopp`B  0Dop@pMz  '   ',$D 0S  0  +(KMnO4/Mn2+)=1.51 (Cl2/Cl-)=1.35, 2CKCKCKCKC6  B\',$D 0 jqN*  6x  ,$D 0 jqNH  0޽h ? 333___G ? ___PPT10 .+.D ' = @B Dz ' = @BA?%,( < +O%,( < +D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*+8+0+0 +&  0 `X4(  4 4  <7     4 s *x=P@<$ 0  "p`PpXB 4 0Do ` H 4 0޽h ? &L333333x&-LYMMMnf___PPT10F.+,OD' = @B D' = @BA?%,( < +O%,( < +D' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*4 %(D' =-s6Bwipe(left)*<3<*4 D' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*4 &%(D' =-s6Bwipe(left)*<3<*4 &D' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*4&0%(D' =-s6Bwipe(left)*<3<*4&0D' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*40L%(D' =-s6Bwipe(left)*<3<*40LD' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*4Lf%(D' =-s6Bwipe(left)*<3<*4LfD' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*4fn%(D' =-s6Bwipe(left)*<3<*4fnD' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*4n%(D' =-s6Bwipe(left)*<3<*4nD' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*4%(D' =-s6Bwipe(left)*<3<*4+8+0+40 +p 0 @7(  @ @  0@          !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|~RB @ s *Dp@pp< @ 0hsAS t c:yBR ؏Sb_ 'lSb_2;3: @ <t}A0(W VrSS" @ c $A0 @??P =x @d @ <A d  ? ": @ 0v?p  !k2uW݄ 0.52 er )Y݄r Nxx 0.85 er +}~r (lW2ux 0.89 er +}~r N.lN 1.06 ~r Em݄r x4(+ Z!!RB  @ s *D  l   @ ,$D 0   @ 60 ,$D 0 h  In1 In2 In3 In4 e e +}~ eorEm+}  CKCKCKC K!CGCGfGGf6H2lB  @ <Do P P lB  @ <DoP P rB @ BDԔ P P  @ 0 P` ,$D 0 d*Nxx  2GH @ 0޽h ? &L333333x&-LYMMMe]___PPT10=+UD' = @B D' = @BA?%,( < +O%,( < +D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*@%(D' =-o6Bwipe(up)*<3<*@D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*@%(D' =-o6Bwipe(up)*<3<*@+8+0+@0 + 0 ` b(     <@     s * p<$ 0    c $A ?? F  $D 0d"  0lPM,$D 0 @NCe4 n[Fe2 (GW:N0.1000molL-1):NO:!x0UxGOGOGOGGA^  0PPP,$D 0 n[Nn[vkNp s^ae g 2z %  e,$D 0  c $A ?? % $D 0d   0̫ (1molL-1 H2SO4) 2   H  0޽h ? &L333333x&-LYMMM___PPT10.+GPD' = @B Do' = @BA?%,( < +O%,( < +D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<**%(D' =-o6Bwipe(up)*<3<**D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<**D%(D' =-o6Bwipe(up)*<3<**D++0+0 ++0+0 ++0+0 +| 0 pz(     0Le   f  s *A ??@ B  0DԔ ,$D0B  0DԔ @,$D0B @ 0DԔ @ ,$D0B @ 0DԔ P ,$D0H  0޽h ? &L333333x&-LYMMM: 2 ___PPT10 +7 D ' = @B D ' = @BA?%,( < +O%,( < +D4' =%(D' =%(D' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*%(D4' =%(D' =%(D' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*%(D4' =%(D' =%(D' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*%(D4' =%(D' =%(D' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*%(+D 0  ,(      s *A ??P8 $D 0   <A  ?3? 9g 8  $D 0   <A  ?3? 8  $D 0   s *P0 P ,$D 0 t_([y5u[) 2 C $H   0޽h ? &L333333x&-LYMMMP H ___PPT10( +0YD ' = @B D ' = @BA?%,( < +O%,( < +D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* +8+0+ 0 +p 0 (.(  (~ ( s *l$   ~ ( BA# ??00I  F pr ( r ( BA% ??r  ( B  j / VD  E `B ( 0DԔ `B ( 0DԔp  fB  ( 6DԔ lB  ( <DԔ0P  ( 6Ԕ  \z Í g3  ( 0( 0  >1.26G30  ( 0@0 z "1.06 1.06N.lNhGCC G  ( 0(  >0.86G3H ( 0 0 p  " 0.89 (lW2uxvG$\ ( 0(    0.85 N(lxxG$`B ( 0Do  P ( # B`CDEFo`8@ 0 H P ( 0   Cr2O72-/Cr3+v 2AIAIIAI ( 0 p,$D 0 `h-0.1%e, j=0.68+0.059lg103 +0.1%e, j=1.44+0.059lg10-35 2    ,H ( 0޽h ? fDW&cC3zr___PPT10R+D|D' = @B D' = @BA?%,( < +O%,( < +D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*(%(D' =-o6Bwipe(up)*<3<*(+8+0+(0 + 0 0 b(  0~ 0 s *, $   V 0 <P-3- .c:yBRSCN- ub~r Fe(SCN)2+tAIAE3AIA$ 0 8 P  0P  0 BA' ??P   0 H6IP  j / VD  E T  `  0# `   `B 0 0DԔ `P ``B  0 0DԔ P fB  0 6DԔ lB  0 <DԔ `   0 6L=Ԕ    \z Í g3  0 BA&   :0.52C 0 B?&   :0.23C 0 B4I  >0.33G3f 0 6-33 - 0 0H0 w %j1D 2 0 0R;  %j2D 2l 0 <o `  lr 0 <o w  0 s *_0 ,$D 0 B%j1: %j2 =n2:n1=2:1 jspOPTn'Yv5u[Ne.X" $  6 0 s *Dm ,$D 0 `q_TzÍ'Y\vV }? 2  j 0 6q 0 T 2Fe3+ +Sn2+ =2Fe2+ +Sn4+G O G O G O G O  0 0t P ,$D 0 -0.1% j=0.14+(0.059/2)x3=0.23 sp: j=(0.14x2+0.70)/(2+1)=0.33 +0.1% j=0.70+0.059x(-3)=0.52Z EEEH 0 0޽h ? &L333333x&-LYMMM  ___PPT10 +YD ' = @B D ' = @BA?%,( < +O%,( < +D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*0%(D' =-o6Bwipe(up)*<3<*0D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*0%(D' =-o6Bwipe(up)*<3<*0D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*0%(D' =-o6Bwipe(up)*<3<*0++0+00 ++0+00 ++0+00 + 0 \T D  (  D~ D s *X@`z   ~ D s *0ps   D s *A1 ??`8 $D 0cz p  D p,$D 0lB  DB <DԔp@  D 0(  7?   D 0lP] VFe2+6 2G O l `   D`  ,$D 0 D 6 g 6V2. Sn4+ Sn2+ Ti4+ Ti3+ WC$C K C K C K C K  $ @`0T 0  D#  P pfB D 6Do`  D 0t0` P :ZnE D 0ܤ  L؏S `B D 0Dp  `B D 0D D 6p`   40.14 2 D 6D p0  40.10 2 D 64 @  5-0.76 2`B D 0D  z   D ` @ ,$D 0 D 0 - Fe3+0I2rG O G O G fB D 6DԔ  H D 0޽h ? &L333333x&-LYMMM  ___PPT10 +Q;D ' = @B Dm ' = @BA?%,( < +O%,( < +D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*D%(D' =-o6Bwipe(up)*<3<*DD' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<* D%(D' =-o6Bwipe(up)*<3<* DD' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<* D%(D' =-o6Bwipe(up)*<3<* DD' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*D%(D' =-o6Bwipe(up)*<3<*D+V 0    HB (  Hz P  H  ,$D 0lB HB <DԔP ` H 0' Cr2O72-GOGOOOz    H `N,$D 0< H 0l   63. Fe3+ Fe2+ Fe2+ 7c$C$K$C$K$C$K$fB H 6Do@ @ H 0T 7 ]SnCl2<CKC$  H 0p }  :% 2 |  H 0lP,$ 0 *'lSBRT؏SBRv b 1. [ϑ'lSb؏S; 2. gN[v b'`:Ow-NFevKm[, N(uZn\O؏SBR; 3. Ǐϑv'lSBRb؏SBRfdS:H2O2,(NH4)2S2O8 RpR;NaBiO3ǏndS; Sn2++HgCl2 Hg2Cl2 +Sn4+  2 G FC K C K C K C K C K C K C K C K C K C K C K C K C    % @`XB H 0Do0 0XB H 0DoH H 0޽h ? &L333333x&-LYMMMLD___PPT10$+D' = @B D' = @BA?%,( < +O%,( < +D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*H%(D' =-o6Bwipe(up)*<3<*HD' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*H%(D' =-o6Bwipe(up)*<3<*HD' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* H %(D' =-s6Bwipe(left)*<3<* H D' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* H A%(D' =-s6Bwipe(left)*<3<* H AD' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* HA%(D' =-s6Bwipe(left)*<3<* HA+8+0+ H0 +  0   LZ (  L~ L s *0z    F  G L  G L BA3 ?? 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[NO MnO2 ( ), ؚ H2C2O4R(+)] n[^: HQbaT_(Mn2+PS)0 [_ KMnO4eg NSS^ R( )]}     CKCKCKCGCG C G O G O G O    GCKCKCKCG      CKCGC\    x s *P  \xQWS^ 2&$H x 0޽h ? &L333333x&-LYMMMjb___PPT10B+ND' = @B D' = @BA?%,( < +O%,( < +D' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*x%(D' =-s6Bwipe(left)*<3<*xD' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*x%%(D' =-s6Bwipe(left)*<3<*x%D' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*x%A%(D' =-s6Bwipe(left)*<3<*x%AD' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*xAi%(D' =-s6Bwipe(left)*<3<*xAiD' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*xi}%(D' =-s6Bwipe(left)*<3<*xi}D' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*x}%(D' =-s6Bwipe(left)*<3<*x}+8+0+x0 + 0  |n(  | |  6|]0    | c $$^` <$ 0  ^B | 6DԔ@PP`z   |  ,$D 0 | c $A- r??  r$D 0d~ | c $A. s??  s$D 0d z  J`  |  J ,$D 0  | c $A/ t??  JL  t$D 0d fB  |B 6DԔ ` H | 0޽h ? &L333333x&-LYMMMPH___PPT10(.+5D' = @B D' = @BA?%,( < +O%,( < +D' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*|!%(D' =-s6Bwipe(left)*<3<*|!D' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*|!P%(D' =-s6Bwipe(left)*<3<*|!PD' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*|Pm%(D' =-s6Bwipe(left)*<3<*|PmD' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*|m%(D' =-s6Bwipe(left)*<3<*|mD' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*|%(D' =-s6Bwipe(left)*<3<*|D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*|%(D' =-o6Bwipe(up)*<3<*|D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*|%(D' =-o6Bwipe(up)*<3<*|+8+0+|0 +C' 0 I(     0@{ P <$ 0  z ` 7   W,$D 0 `   ` ,$D 0`B  0Do   0o `  nH2SO4, %B 2DN       `B  0Do@  ~   0  ,$D 0 Na2C2O4(Ǐ) 2EMEMEME   0p 7,$D 0 H2C2O4(iR)  GOGOGOGC^   0 ` - ,$D 0 4l7h+ KMnO4(Ǐ)b 2G C CKC$(   0  ,$D 0 KMnO4(iR)> 2CKCz 0  P     @,$D 0  0  W  WKMnO46 2GOfB B 6DԔ0  P  0  P  # ,$D 0  0`  W  WKMnO46 2GOfB B 6DԔ0  P z   ,$D 0  0x    MnO4- +MnO2r 2CKKCKC  0X  Z x'`, % 2`B  0Do@L@  0ĺ I@  H+,gkSD 2EME`B  0Do @@  0HP   Fe2+(Ǐ)D 2EME  0   g:gir+KMnO4(Ǐ)R 2GCKC$@  00  CO32- + MnO42-+MnO4- 2CKKCKKCKK  00 Fe2+(iR)> 2CKC`B  0Do@ @H  0޽h ? ̙332*___PPT10 .+s1oD' = @B De' = @BA?%,( < +O%,( < +D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* +8+0+0 + 0 &(     6T@   `  c $A u??, d  u  c $A2 v??7` 8 v$D 0  0`@ ,$0 l (MOSĞ)"XF p       c $A5 w??B 8 w$D 0fB B 6D> 0p H  0޽h ? &L333333x&-LYMMM 0  (  ~  s *  `@     c $`<$ 0    c $A6 x??P8 x$D 0  0  >Cr2O72-+14H++6e=2Cr3++7H2O 2G O G O O G O G O G O G H  0޽h ? ̙33zr___PPT10R.+,OD' = @B D' = @BA?%,( < +O%,( < +D' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*+%(D' =-s6Bwipe(left)*<3<*+D' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*+<%(D' =-s6Bwipe(left)*<3<*+<D' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*<Q%(D' =-s6Bwipe(left)*<3<*<QD' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*Qc%(D' =-s6Bwipe(left)*<3<*QcD' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*c%(D' =-s6Bwipe(left)*<3<*c+8+0+0 + 0 RJ(     6, `P    &F s   `s  c $A7 y??sx yd  c $A9 z??@`x zd`B  0D0 0   c $A: {?? 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Px d  0w p` < 1 : 1   6|  ,$D 0 (((uNa2S2O3hmn[S^ubv I2G O G O G O  G O *   0< p ,$D 0 a $ 2C   0 T (uI- v؏S'`Km'lS'`ir(: KIO3, MnO4-, Cr2O72-, Cu2+, Fe3+, PbO2, H3AsO4, H2O2 (Ba2+,Pb2+)c 2CGOK Cckckkckckkckckckckckckckgogog" Uz      P ,$D 0 p     ,$D 0   c $AO ??l x d  0l p   G 1 : 2  c $AP ??    $D 0d   s *   ,$D 0 Z1_x'`1_x'` 2H  0޽h ? &L333333x&-LYMMM___PPT10+{D'  = @B D' = @BA?%,( < +O%,( < +D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<* %(D' =-o6Bwipe(up)*<3<* D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D@' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*D' =%(D' =%(D3' =4@BBBB%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-o6Bwipe(up)*<3<*++0+0 ++0+0 ++0+0 + 0     (    c $AQ ??x dA"  c $AR ??@@x dXB  0D`   0 P  ZsSRvSuY NS^    c $AS ??Px d  0 `D  ; 4 : 1 h  s *  Z,$D 0 @n[-N^la S2O32-n[I2e , pH <9 (2bkI2\S), [H+]3-4molL-1SN I2n[S2O32-e pH < 11, NSx'`*Y:_(2Na2S2O3R)0}       &       3    0'   6 / \ؚx^&   H  0޽h ? &L333333x&-LYMMM~v___PPT10V+rD'  = @B D' = @BA?%,( < +O%,( < +D' =%(D' =%(DD' =A@BBBB0B%(D' =1:Bvisible*o3>+B#style.visibility<*%(D' =-s6Bwipe(left)*<3<*+8+0+0 +=% 0 (     6 `@    Tz       ,$D 0  BH    4b6R~̃u ~cnmx'` x'` N3z["   <$ P p  xS2O32-VAIAII`B B 0D 0 `B  0D   z p@ A  @p A,$D 0   B j@g̃ v v,     <  @ [ CO2 O26  "   Bt   !R !'lS !x'`,>   <P gJ  1S2O32- S2O32- S2O32-           B+#@ }r R N3z[!  </p!AA bHSO3-,S!6   <h7 G     <l9*  VR ! ! 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