()(348)1()ABCDAl2(SO4)3BaSO4HClOKClH3PO4H2OCaCO3Al(OH)3CO2NH3H2ONH3HIBNH3H2OCHClOCaCO3DHIA250.00 mL KMnO4()A50 mLB10 mLC50 mL D50 mL50.00 mL50 mLC3(2020)()ACO2BpHH2C10 mL 1 molL110 mL 1 molL1NaOHDACH3COOHH2CO3BpHc(H)CDD4HAHAKa()AKaBKaCKaDKaKaABKaCDAD5()ABCDACFe33H2OFe(OH)33HDS2H2OHSOHHSH2OH2SOHH2SBB6pH5500c(SO42)c(H)()A11 B12C110 D101pH5c(H)105molL1c(SO42)5106molL1500c(SO42)1108molL1c(H)1107molL1c(SO42)c(H)110CpHBC7(2020)()ABCDAAlCl3Al3Al2O3ABBCAgNO3CDNaOHDC8(2020)HCNNaCNNaClONaCNpHHCNHClO()AHCNHClOBpHHClOHCNCNaOHNaOHHClOHCNDc(CN)c(ClO)NaCNpHCNc(CN)c(ClO)HCNHClOADpHHClOHCNBHCNHClONaOHCD9NaOH()A23BCDNaOHNaOH23AB0CNaOHNaOHDC10()ABc(H)1107molL1CpH14pOHDpHpOHA()()KW