搜索
1()23()4()56()78()9101112131420mlNaOH20ml15()16()17()18()190.00ml200.8ml21()1.250mlNaOH50.00ml3.456.70.1mg0.35gK2Cr2O70.3500g820mlNaOH20.00ml90.1%0.01ml20.00ml-6103.5010pKa=4.1211-4120.050202.30101314.150.1mg1.35gK2Cr2O71.3500g1617.0.1mg0.35gK2Cr2O70.3500g18.192010.01ml25.00mlCA.0.02%B.0.04%C.0.08%D.0.1%20.0335??20.74?0.25??60.01C2000A.1B.2C.3D.43BA0.0001B0.1000CpH=10.00D10004pH=9.00BA1B2C3D410.20480.20550.20580.20600.20530.20502.Cl6x=35.2ppmS=0.7ppm95%-ppmt0.95,5=2.573.0.7490.7490.7510.7470.752%4.54.744.794.794.804.82%xS54.800%54.7444.7904.7904.7984.822%x4.789%S0.028%tt0.95,4=2.7812399.9%4567891NaOHNaOH2NaOH0.003682gHClNaOHTNaOH/HCl=0.003682g/mol34TNaOH/HCl=0.003646g/mlNaOHNaOH22.00mlHCl0.080212+51.000mlKMnO40.005613gFeKMnO4TKMnO4/Fe2+=0.005613g/mol1BA.B.C.D.2(C)ABCD3(D)A99.9BCD4AA.NaClB.HClC.KMnO4D.Na2S2O35(D)ABCD6(D)ABCD7BABCD8AA.B.C.D.9.DA.B.C.D.1123-[OH]45NaOHNaOH6Kac78cKa91011HClHCl12H2Cl2===2HCl13cKb10-814?pH15Kb16[H]17pKb1400ml0.10mol/LHClpH=120.5300gNa2CO3(105.99g/mol)100.0ml+D.CaKa103DAB.C.D.4DAB.C.D.50.1molLDAHCOOHpKa=3.75BHAcpKa=4.76CH2SO4DNH4ClpKa=9.25610pHA-1-1ANH4Ac0.1molLBNaAc0.1molL-1-1CHCl0.1molLDHAc0.1molL7HClO4HAcHClAr-COOHCABCD-180.1molLC-3-6A(Ka=1.410)B(Ka2=3.110)-10-5C(Ka=1.310)DNaAc(Ka=1.810)910pHD-1-1ANH3H2O1.0molLBHAc1.0molL-1-1-1CHCl1.0molLDHAc1.0molL+NaAc1.0molL10CABCD11Na2CO3HClCABCD120.1000mol/LHCl0.1000mol/LH3PO4(Ka1=7.5210,Ka2=6.2310,Ka2=4.410BA.1B.2C.3D.013BAB.C.D.13.00ml0.1050mol/LNaOH15.22ml,g/LHAc60.05g/mol2CaCO30.5000g50.00mLHCl0.2000mol?L-1NaOH-3-8-13-1-8)NaOH10.20mLHCl(CaCO3M=100.0g?mol-1)3Na2CO31.4315g250.0ml-10.10molLHCl25.00mlHCl23.45ml-1HClMNa2CO3=106.0gmol4HClNa2B4O710H2O0.4324gHCl-122.14mlHClM(Na2B4O710H2O)=381.36gmolNa2B4O7?2HCl?5H2O??4H3BO3?2NaCl50.20mol/LHCl20mLM(Na2CO3)=106.0g/mol6Na2CO31.3350g250.0mLHCl25.00mLHCl24.50mLHClM(Na2CO3)=106.0g/mol7Mg(OH)20.2178g50.00ml0.1204molL-1HClHCl3.76ml0.0948molL-1NaOHMg(OH)2M(Mg(OH)2)=58.30g/mol8NaOHCO2NaOHNa2CO30.28750.2450mol/LHCl29.30mlHClHCl0.30mlNaOHNaOH:40.00g/mol9.(CH3CO)2O+H2O?2CH3COOH1000ml0.2%1.051.0897.0%ml(CH3CO)2O102.09g/mol,H2O18.02g/mol12EDTA1:13KMY45EDTA1:16pH7EDTA8EDTA9pH1EDTA72Zn/ZnOEDTA3EDTAK?Min-210K?MY4K?Min?K?MY5lg(cMK?MY)66.HEDTA7.TpH7--10