1 NH3 Cu BaSO4_________________________________2 :

1HAHB(1)pH(HA)pH(HB) (2)pHCHACHB(3)pHpHHApHHB2(HAc)120.01mol/LHAcpH>23NaAcpH4pH= aHAc100pH< a+25HAcNaAc6HAcNaOH

7HAc8pH=1HAcpH=13NaOH910mLpH=1HAcpH=13NaOH10mL;10pHHAc______________________________________________ _________________________0.1mol/LHAc___pH=1HAc___________________________________________________________(1) (2) (3) (4) (5) (6) (7)(8) (9) (10) HAcpH=1HAc HAc

pH14pH14HCO3HSHPO4HC2O4HSO3H2PO42NaHSO4

NaHSO4 ASO42 BHSO4 CH DNa+1PHc(H+)107mol/LPH1pH=3HAcpH=4NH4ClpH=11NaOHpH=10Na2CO3____________________________NH4Cl=Na2CO3 >HAc=NaOH2pH=12c(OH) A107molL1 B106molL1 C102molL1 D1012molL1CD

3c(H)=105 molL-1(1)PH A7 B5 C9 D(2) ANaOH BAl2(SO4) 3 CNaHSO4 DNaAlO2(3) AMg2Fe3SO42Cl BAl3NH4Ca2SO42 CNaAlO2S2SO32 D Fe2INO3ClO4c(H+)=1014mol/L ANH4+ Al3+ Br SO4 BNa+ Mg2+ Cl NO3 CK+ Ba2+ Cl NO3 DK+ Na+ SO32 SO42BCBDBDC

5 AS2ClONaClCO32BMnO4SO42K+Fe3+CpHNH4NaSO42Fe3+Dc(H)11012molL HCO3NH4ClCa2+625c(H)110a molL1 Aa>7Ba >7pHa14aCa

2H+OH-1+2H+OH-14pH141HAMOH( )A[A-][M+] B[A-][M+] CMA[OH ][A-]BC

2 ApH7c1V1>c2V2 BV1=V2c1=c2c(NH4+)=c(Cl) CpH7c(NH4+)>c(Cl) DV1=V2 pH7c1c(C2O42)>c(HC2O4)AD

410mLpH10KOHpH4HApH7 AcAcKBcHcOHcKcACV20 mL DV20 mLHA1410mL10mLAD

5pH=3pH=11 Ac(NH4+)c(Cl)c(H) c(OH) Bc(NH4+)c(Cl)c(OH) c(H) Cc(Cl)c(NH4+)c (H) c(OH) Dc(Cl)c(NH4+)c(OH) c(H)pH14NH4ClNH3H2OB

6c(H+) = 10-3mol/Lc(OH)= 10-3mol/L A. B. C. D. B

7pH=2HnApH=12B(OH)m______________(1)pH8____________________ ____________________(2) pH5___________________________________________

8Mg(OH)2NH4ClMg(OH)2CH3COONH4

3(:Na2CO3 NaHCO3)HCOOH>CH3COOH>H2CO3()> C6H5OH> HCO3HCOO CH3COO HCO3 C6H5O CO32HClOHAlO2H2SO3

1pH0.31.2MgCO3NaHCO3 A BNa+Mg2+CDMgCO3NaHCO3 CO2C

2Na2CO3 NaHCO3 NaAlO2 CH3COONa NaOH Na2SO3CO2+3H2O+2AlO2= 2Al(OH)3 + CO32CH3COOH()+ SO32 = CH3COO+HSO31pH 20.1mol/L,pH 3,AlCl3, 4 _______________________

3Na2SO3 C6H5ONa NaClO CH3COONaNaOH PH7__________________4HCO3HBrOHBrOH2CO3__________________________________________________________________________HCO3-+Br2==HBrO+Br-+CO22CO32+Br2+H2O==2HCO3+Br+BrO

5HAH2BH3C= HA+HC2() = A+H2C H2B()+2A = B2+2HA H2B()+H2C = HB+ H3C1HAH2BH3C___________2AB2C3HBH2CHC2 6________________H2BC3HB

3_____________ AH3C+3A = 3HA+C3 BHB+A = HA+B2 C H3C+B2 = HB+H2C4 H3C+OH () ____________________________ HA() +C3____________________________B CH3C+3OH () =3H2O+C32HA() +C3 =H2C+2A

pHKW1c(OH)KWc(H+)c(OH)[c(OH)1V1+ c(OH)2V2]/(V1+V2) ([H+])2H++OH = H2Oc (H+)C(OH)1pH=10Ba(OH)2pH=8NaOHpH=

2pH=12NaOH100mLPH110.11pH=12NaOH_______mL2pH=2_______mL30.01mol/Lv1mLv1_____4pH=2HRv2mLv2_____325VmLpH=apH=bNaOH10VmLClNa+(a+b) A.13 B.14 C.15 D.12A

pH110n10n210n10n3pH41pH=51000c(H+)=_____ c(SO42)=__________ pH=10NaAc10pH

21 L0.1 molL-1pH11100pHa0.2molL-1HCln(NH4+)+n(H+)n(OH)=b mol ab A9110.1 B9110.2 C12130.2 D130.1B

3pH=11xy5mL500mLpH(V) AxyBxyypHCxya9DxyV(x)>V(y)C

4pH=2XYZ 1 mL1000mLpHV A. B.cX>cZ>cY C.ZYX D.Z>X>YA

1

10.1mol/LNa2C2O40.1mol/L NaHC2O420.1mol/L KHSO40.1mol/L Na2SpH A. c(SO42)c(HS)c(OH)(H) B. c(Na)c(K)c(H)c(OH) C. c(Na)2c(S2)c(H2S)c(HS)2(SO42) D. c(Na)c(K)c(H)c(SO42)c(S2)c(HS) c(OH)A

210.1 molL-1Na2CO30.1molL-1CH3COOH2

31HANaAHABOHBClBOHNaHSO3NaH2PO4NaHC2O4

10.1 molHAcNaAc1Lc(Ac)c(Na+) A.c(H+)c(OH) B.c(HAc)c(Ac)0.2mol/L C.c(HAc)c(Ac) D.c(Ac)c(OH)0.2 mol/L22HANaANaABOHBClBClNaHCO3NaHSNa2HPO4

10.1molHCNNaCN1Lc(CN)c(Na+) Ac(Na+)c(CN)c(H+)c(OH-) Bc(CN)c(HCN) Cc(Na+)+c(H+)= c(CN)+ c(OH-) Dc(CN)+c(HCN)=0.2mol/L2 0.1mol/LNaHCO3CD

30.1mol/L NaHSO3c(Na+)c(HSO3-)c(SO32-)c(H2SO3)1____

______________________________________________2NH4HSO3______________________________________________

1HXNaXC(Na+)>C(X) AC(OH)

2NaHY A B C C(Na+)c(HY)c(OH)c(H+) c(Y2) D C(Na+)c(Y2)c(HY)c(OH)c(H+)

3H2BH2B=H+ + HBHB H+ + B2 1Na2B_____()_____________________20.1 mol/LNa2B_________________Ac (B2 ) + c (HB ) + c (H2B) = 0.1 mol/LBc (Na+ ) + c (OH ) = c (H+) + c (HB )Cc (Na+ ) + c (H+ ) = c (OH ) + c (HB ) + 2c (B2 )Dc (Na+ ) = 2c (B 2 ) + 2c (HB )30.1 mol/LNaHBpH=20.1 mol/L H2B___0.11 mol/L=___________40.1 mol/L NaHB_______________________

40.1 mol/LH2APH=4.0 A.Na2ANaHA B.Na2ANaHA C.NaHA c(Na+)+c(H+) = c(HA)+c(OH)+2c(A2) D.Na2Ac(Na+)> c(A2)> c(H+)> c(OH)50.1molL1Na2CO3NaHCO3 H2CO3(NH4)2CO3NH4HCO3c CO32___________________C

10.1mol/LKHC2O4 A. c(K+)+c(H+)=c(HC2O4)+c(OH)+c(C2O42) B. c(HC2O4)+ c(C2O42)=0.1mol/L C. c(K+)= c(H2C2O4)+ c(HC2O4)+ c(C2O42) D. c(C2O42)c(H2C2O4)CD

2pH A.CuCl2 Cu+Cl2 B.H C.Cu2 Cu2 H D.HClO HClpHB

1 1NaClNaFn1n2 n1n2

2Na2CO3Na2SO4n1n2n1n2

CaO + H2O = Ca(OH)2(s)Ca(OH)22 1 ACa2+ BpH C D[Ca2+]A

2Na2CO31.06gNa2CO310H2O A2.86g BpH CNa+ D31: ______________________________________________________________________ BD

2BiCl3BiOCl1BiCl3 2BiCl3 3BiCl3 4BiCl3NaCl___________________

3Fe(OH)3__________________ ___________________________4Na2FeO4__________________________________5NaOH Na2S NaF H2SO4____________________6 _________________________________

7Cu2+Fe2+pH4~5Fe3+(H2O2)CuCl250 mLpH2pH51___________________2_________3________4pH___________

8N2O2CO2H2S _______________________________________________,Na2S2O3I2(2S2O32-+I2=S4O62-+2I-),5min ________________________________________________KMnO40.51KMnO4 _________________________________________________CO2H2SCO2+OH-=HCO3-H2S+OH-=HS-+H2O O2 O2+4I-+4H+=2H2O+I2H2S5H2S+2MnO4-+6H+2Mn2++5S+8H2O

H2O2PbNO32________H2O2_________________________ ___________________________________________________________________Pb2++S2 = PbSPbS+4 H2O2= PbSO4+4 H2O KI+ H2O2=2KOH+ I2S2

9NaClNaHCO3pH 0t_________________________________0tpH_________________________________HCO3-+OH-=CO32-+H2O:2Cl--2e-=Cl2 2H++2e-=H2

10KMnO4KMnO4MnO(OH)2KMnO41KMnO4l h2MnO(OH)23KMnO447080

1KMnO4270803Wg(H2C2O42H2O)500mL25.00 mLV mL6H+2MnO4+5H2C2O42H2O=2Mn2+10CO2+18H2O______________________KMnO4____________mol/L________1KMO4MnO(OH)2 231KMnO4 10w/63V

1OHHNH4Cl c(Cl) c(NH4) c(H) c(OH) c(Cl) c(H) c(NH4) c(OH) c(Cl) c(H)c(NH4) c(OH) c(OH) c(H) c(Cl) c(NH4) c(H) c(OH) c(Cl) c(NH4) A B C DC

2pH__________________________()pH

325mL0.2mol/L1 : 2 molL13Ba 12.5mlc(NaOH)_____c(CH3COOH) c(H+)c(OH)c(H+)____ c(OH)

4 AAB(AB) c(Na+)>c(CH3COO)>c(OH)>c(H+) BBa>12.5 c(Na+)=c(CH3COO)=c(OH)=c(H+) CCc(CH3COO)>c(Na+)>c(OH)>c(H+) DDc(CH3COO)+c(CH3COOH)=c(Na+)A

4NaHOHA Ac(A) c(Na) Bc(Na)> c(A)> c(OH)> c(H) Cc(OH)> c(H) c(Na)> c(OH)> c(A)> c(H) DNaAHA c(A)> c(Na)> c(H)> c(OH)A

5H2BH2BH+HBHB HB2 ANaHBNa2B BNa2B NaHB CNaHB c(Na)c(H) c(HB)c(OH)c(B2) DNa2Bc(OH)c(H )c(HB)AD

6S2,HS,OH, Na+,H+ A.c(Na+)>c(S2)>c(OH)>c(HS)>c(H+)B.Na2SNaHSC.D. n(S2)+n(HS)+n(OH)=n(Na+) +n(H+)

C