范文范例学习指导DDDDDDDaDDDDDDDDDDDDDDDDDaaaaaaaaaaaaaaaaaaaaDDDDDDDDDaaaaaaaaaaaODDDDDDD5%DI(0.05mol/L)叮Na2s2°3(0.1mol/L)DDDDDDDDDDDDDNa2S2O3DDDDDDDDDDDDDDD3mLD5g/LDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD范文范例学习指导[1]QDDDDNa2S2O3DDDDDDDDDDODD[2JDDDDDDDDDDDDDDDDDDDDDD□□□□□□□□DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDNa2s203□I□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□□DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDIO-QDDDDDDDDDDDDDDDDDIDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDNa2S2o3□DDDDDDDDIDDDDDDDDDDDDDDIDDDDDDDDDDDNa2S2o3□□□□□□□□DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD1DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD10DDDDDDDD25.00mLDODD25.00mLIDDDDDDDDDDDDDDDD1mol/LNaOHDDDDDDDDDDDDDDDDDD2DD10D15minDDDDDDDDDDDDDDDDDDDDD2mLD6mol/LHClDDDDDDDDDD:DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD5DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD3DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD范文范例学习指导DDDDDDCrO2-叮SO2-ODD2723SO2-oSO2-ODDDD464DDDDDDDDDDDDDKCrODDDDDDDDDDDDD227KCrODDDDDDDDDDD227DDDDDDDDDDDDDDDDDDDDDCrO2-+61-+14H+=2Cr3++31+7HO27222SO2-+1二SO2-+21-232466CxVDDDDDDDC=—K2C2O——KCrONa2S2O3VNa2S2O36CxVK2C2O7Kfr2O7Na2S2O32.2I(0.05mol/L)DDD2IDDDDAsODDDDDDDDDD232SO2-+1二SO2-+21-23246CxVC=Na^S^P、Na^S^Os122VI22DDDDnnnnnnnAsODDDDDDDDDDDDDDDDD23DDDDDDDDDDDDDDDDDIDDDDDDDDDDDDDDD2IO-12DOH-I0TDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD0.1%DDDDDDDDDDDD2DDDD2.1NaSO(0.1mol/L)UM223I+2OH-=IO-+1-+HO22CHOH(CHOH)CHO+IO-+OH-=CHOH(CHOH)COO-+1-+HO24242DDDDDI+CHOH(CHOH)CHO+3OH-=CHOH(CHOH)COO-+21-+2HO224242DDDDDDDDDDDIO-DDDDDDDDDITIO3-,DDDDDDDDDDDDDDDDDDDD3IO-=IO-+21-IO-+51-+6H+=3HO+3I3322DDDDDI-+IO-+2H+=HO+122范文范例学习指导DDNaSODDDDDDDDD2232SO2-+1=SO2-+21-23246DDDDDDDWC6H12O6CV—0.5xCxV—I212NacScOrNacScOcx10xMC6H12O60.025002.4DDDDDDDDDDDDDDDDDDDDD5%DDDDDDDDDDDDDDDDDD250mL,12.5gDDDDDDDDDDDDDDD95.0%D105.0%DDDDD20612091006葡辅制含审标示量DDDD3.1DDDDDDDDDDDDDDDDDDDDDDDODD(25mL)D3DDDD(250mL)D4.1DDDDDDDDDDDDDDD50mLDDDDDDDDDDDDDDDDDDDDDDDNaSO(0.1moI/L)D223NaSO223100g/LDDHClD(0.1mol/L)DDD4.1.1兀K2Cr2O7MMDDDDDDDDDD1.2DDDDDDDDDD250mLDDDDDDDDDDD4.1.2DDDDDDDDDDDDD50mLD100mLDDDDDDDDD250mLD,DDDDDKCrODsDDI(0.05moI/L)DDD22726mol/L叮NaOH(1mol/L)DDDDDDDDDD1.3gK2Cr2O7DDDD100mLDDDDDDDDDDDDD2D3DDODD(5g/L)DKI5%)ODDDDDDDDDDD25.00mLDK2cr2o7口叮皿250mLDDDDDD5mLD6mol/LDHCIODD10mLD100g/LKIDDDDDDDDDDD5minDDDDI-DDDDDDDDDDDDODDDD50mLDDDDDDDDDDDDDDDDDDDDDD3mLD5g/LDDDDDDD范文范例学习指导DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD0.2%DD4.2I(0.05mol/L)MU2DDDDDD25.00mLIODD250mLDDDDDDDD50mLDDDDDDDDDDD2DDDDDDDDD3mLD5g/LDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDIDDDDDDDDDDDD0.2%DD24.3DDDDDDDDDDDDDDDDDDDDD25.00mLDDDDDDD250mLDDDDDDDDDDDDDDDDD25.00mLDDDDDDDDDD250mLDDDDDDDDDDDDDD25.00mLIDDDDDDDDDDDDDDDD1mol/LNaOHDDDDDDDDDDDDDD2DDDDDD10D15minDDDDDDDDDDDDDDDDDDDDDDDDDDD2mLD6mol/LHCIDDDDDDDDDDDDDDDDDDDDDDDDDDD3mLD5g/LDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD(Dg/LDD)DDDDDDDDD0.2%DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD.5DDDDDDDDD5.1NaSO(0.1mol/L)DDD223m/g□+□m/g□+□m/gK2Cr2O7V/mlK2Cr2O7C/mol/LK2Cr2O712.238711.00811.23062500.01674DD123V/mlK2Cr2O725.0025.0025.00V/mln0.000.000.00V/mln32.7032.4532.57V/mlNa2S2O332.7032.4532.57C/mol/LNa2S2O30.076790.077380.07710CODD/mol/LNa2S2O30.07709DDDD/%-0.390.380.01DDDDDD/%0.255.2I(0.05mol/L...
