基础化学实验(一)习题及答案一

4021HgSCuS,()(A)HNO3(B)H2SO4(C)(NH4)2S(D)NH3·H2O2HNO3()(A)CdS(B)HgS(C)PbS(D)Bi2S33()(A)Na2CO3+HCl(B)K2CrO4+HAc(C)(NH4)2CO3+NH3(D)H2S+HCl4,()(A)CH2COSH(B)CH3COSNH4(C)CH3CSNH2(D)CS(NH2)25,,()(A)(B)(C)(D)6()(A)(B)(C)(D)7,,()(A)(B)(C)(D)8{Na2[Fe(CN)5NO]}S2-,()(A)(B)(C)HAc-NaAc(D)NH4+-NH39Al3+Fe3+Zn2+,-SAl3+Fe3+,()(A)NaF(B)K4Fe(CN)6Fe3+(C)NH3Fe(OH)3(D)NaOHFe(OH)310,,;NaOH,,,()(A)K2Cr2O7(B)K2CrO4(C)(NH4)4Fe2(SO4)4(D)(NH4)2CrO411Mg2+,()(A)NH3-NH4ClpH≈9(B)HAc-NaAcpH≈5(C)(D)12CuSCdSAs2S3Sb2S3SnS2()(A)HNO3(B)HCl(C)NaOH(D)HCl+HNO313Co2+Mn2+Cu2+Bi3+Pb2+(A)H2SO4(B)Na2S(C)NaOH+(D)NaOH14As2S3Sb2S3SnS2Bi2S3CoS()(A)HNO3(B)HNO3+HCl(C)NaOH(D)NaOH15CuSHgSAs2S3()(A)HNO3(B)NaCl+KI(C)(NH4)2CO3(D)Na2S16H2SNa2S(NH4)2S,Mg2+()(A)Mg2+(B)Mg2+(C)Mg(OH)2(D)Mg2+17H2S,,AgClAgI(A)HAc+NaAc(B)NH3?H2O(C)HCl+HNO3(D)(NH4)2CO318Na2SO3Na2S2O3Na2S()(A)AgNO3(B)KMnO4(C)I2(D)19Ag2CrO4AgClAgIBaCrO4Ag2CrO4AgClAgIBaCrO4()(A)HCl(B)HNO3(C)NaOH(D)6mol/LNH3?H2020HCl()(A)Ag+Hg22+Pb2+(B)Ag+Hg22+PbCl2(C)Ag+Hg22+Pb2+(D)Ag+Hg22+Pb2+301Na2SnO2,,____________________________________________________________________(4)2Fe3+F-Fe3+(4)3Ca2+Sr2+Ba2+Cu2+K+Na+(6)4NaBiO3Mn2+(4)5()Ni2+,(4)6()Mg2+(4)7K2Na[Co(NO2)6]K+(4)301(5)Al3+Fe3+Zn2+,-SAl3+Fe3+,NaOHFe(OH)3,2-S,,?25Pb(NO3)2Zn(NO3)2K2CO3(1)(2)(3)0.3mol/L,H2S(4)H2SNH4Cl(5)3(5)Cu2[HgI4]Hg2+CuSO4KINa2SO34(5)Pb(OH)2PbCrO4Ag2CrO4AgClBaSO4?5(10)(1),?(2),,,?(3),,?(4),NH3·H2O??1A2B3B4C5B6C7D8B9D10D11C12C13D14C15C16C17D18A19D20C1,;,,2346mol/LHNO3HNO32Mn2++5NaBiO3+14H+=2MnO4-+5Bi3++5Na++7H2O5(pH510)67NH4+NH4+1NaOHFe(OH)3,,AlO2-,,Al(OH)3,2(1)Pb2(OH)2CO3Zn2+K+NO3-(2),PbCl2Zn2+K+NO3-(3)PbSZn2+K+NO3-(4)PbSZn2+Zn(NH3)42+K+NO3-(5)3CuSO4KICuIHgI42-CuIHgI42-Cu2[HgI4]Na2SO3I2I22Cu2++4I-=2CuI↓+I2Hg2++4I-=HgI42-2CuI+HgI42-=Cu2[HgI4]↓+2I-I2+SO32-+H2O=SO42-+2I-+2H+4(1)PbCrO4NaOH(2)Ag2CrO4NH3H
2O(3)NH3H
2OAgCl(4)NaOHPb(OH)2(5)BaSO45(1)Cu2+,Cr3+,Fe3+,Co2+,Ni2+;(2),H2S;(3)ZnS,Al(OH)3,MnS;(4)Mn2+;(5)Al(OH)3