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20192020112201920202020.11010090H1C12N14O16S324211ABCD2ABCD3AZnBNa2SCu2+Hg2+CCaSO4SO2DC4Rb30001RbA37RbAKRbB50Rb50RbC53IRbIDKOHRbOH201920202125ACu2+K+SCN-Cl-BNO3-I-SO32-SO42-H+Cc(H+)1.010-13molL-1Na+NH4+SO42-HCO3-DpH11NaOHCO32-K+NO3-SO42-6A1molO222.4LB1.7gNH36.021023C8gSO23.011023D0.5molL-1NaClCl-0.5mol7ACO32-+2H+==H2O+CO2B3Cu+8H++2NO3-==3Cu2++2NO+4H2OC4NH3+5O2======4NO+6H2OD2OH-+SO2==SO32-+H2O82mL0.8molL-1FeSO42mL1molL-1NaHCO3ACO2BHCO3-CFeCO3D9PETM=192gmol-1PETcmolL-1NaOHmgPETNaOHvmLAPETBCPET1000m192cvn20192020312DPET101L0.1molCH3COOH0.1molCH3COONaapHa0.01molHCl0.01molNaOHpH4.764.674.85apHAa0.1molL-1CH3COOHCH3COOHBa0.01molHClCH3COO-H+CH3COOHpHCa0.1molNaOHpHD0.1molL-1NH3H2O0.1molL-1NH4Cl11ABCDFeCuH2MnO212AM1BM120192020412CDXYZ13Zn(OH)2+2OH-==Zn(OH)42-KOHAH+BMnO2+4H++2e-==Mn2++2H2OCZn(OH)42-+2e-==Zn+4OH-DKOH142NO2(g)2NO(g)+O2(g)H0(NO2)kc2(NO2)(NO)kc2(NO)c(O2)kkmolL-1molL-1c(NO2)c(NO)c(O2)c(O2)0.6000.20.60.10ANO266.7%Bc(O2)0.2molL-1CDkKk2019202051258158Fe2+C2O42-[(NH4)2Fe(SO4)2]H2C2O4mg70cmolL-1KMnO4KMnO4v1mLKMnO4cmolL-1KMnO4KMnO4v2mL3pH4Fe2+O2KMnO4Mn2+1____________2KMnO4____________3Fe3+Fe2+KMnO4V______v2mL4______5mgFe2+C2O42-______v1v2201920206121610ClO2NaClO3ClO2aClO212NaClO3+8H2SO4+3CH3OH==12ClO2+3HCOOH+4Na3H(SO4)2+9H2ObCH3OHHCOOHClO2/97959/65101111ClO2______2ClO2CH3OH______A0~10B20~30C60~703Na2SO410H2ONa2SO410H2ONa2SO4Na3H(SO4)2NaClO3______Na2SO410H2ONa2SO432.420192020712______Na3H(SO4)2NaClO3______1712CN-pH12CN-Cu(CN)32-CN-1HCNNaCN______2K2S2O8K2S2O8CN-N3CNO-N3S2O82-CN-CNO-SO42-______K2S2O8CN-11mmolL-1K2S2O80.75mmolL-12mmolL-1______CN-aCu+S2O82-CN-bS2O82-Cu+SO4-CuOcSO4-OHdSO4-OHCN-CNO-OHSO4-OHCu(CN)32-CN-CN-50%CN-22CN-1CN-20192020812CuOCN-______CN-CNO-CNO-CO2N2______1812H3PO4H2O230mL1.0molL-1H3PO43mL30%H2O2pH130mL1.0molL-1H3PO43mLH2OFe3(PO4)2Fe(H2PO4)2185%H3PO4100mL1.0molL-1H3PO4______2______3+3KSCNH2SO4_____4Fe2+H2O2H2H+______FeSO4pHpHFe2O3______201920209125______1916L1A______2AB______3XDX______31221molX1molH24E______51molF1molG______molH26G______7K______8L201920201012a______201920202020.14231234567ABBCDBA891011121314BCCACAD5815181Fe2+Fe2+2Fe2+H2C2O4C2O42-345Fe2++MnO4-+8H+==5Fe3++Mn2++4H2O252122vvv2019202011121621012B3Na2SO410H2O(s)2Na+(aq)+SO42-(aq)+10H2ONaClO3c(Na+)Na2SO410H2OH2SO4172121CN-+H2OHCN+OH-2S2O82-+CN-+2OH-======CNO-+2SO42-+H2O1mmolL-10.75mmolL-1CN-2mmolL-12Cu+CN-Cu+CuOSO4-CN-50%2019202012122CNO-+4OH--6e-==2CO2+N2+2H2O182121100mL2Fe+2H3PO4==Fe(H2PO4)2+H23O24pHH2O22Fe2++H2O2+H2O==Fe2O3+4H+5H2Fe2+Fe2+H2O2H2H21921612341154mol678