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北京化工大学ModelofMid-termExaminationof《InorganicChemistry》（bilingualcourse）Coursecode课程代码CHM2170TClassNo.:NameandID:Items(题号)一二三四五六Totalscore(总分)Score(得分)一、1√;2x;3√;4x;5√;6x;7√;8√;9x;10√;11x;12√二、1A;2C;3A;4D;5D,D;6B;7D;8B;9C;10D;11B;12B;13B;14C三、1、左;Cl-,Cu2+;降低；蓝色。2、75.97；75.97；H2O(g).3、4.46;稍稍变小。4、大；大；小；小。5、BaSO4;CaCO3(s)+2NH4++2H2O=Ca2++2NH3.H2O+H2CO3。6、Fe3+;Sn2+。7、标准氢电极；甘汞电极。8、硝酸四氨⋅二水合铬（II）；[Co(H2O)(en)2Cl]Cl2。9、9.37x10-13；1.32x10-3。10、Cu2+与en形成的配合物；熵。四、1、7PbO2+2MnBr2+14HNO3=7Pb(NO3)2+2Br2+2HMnO4+6H2O2、ClO3-+6I-+6H+=Cl-+3I2+3H2O五、1.第1页2.2H+(aq)+2e→H2(-);Ag+I--e→AgI(+)(-)Ag(s)⎢AgBr(s)⎢⎢H+(aq)H2(g),Pt(+)六、1.answerCaCO3(s)=Ca2+(aq)+CO32-(aq)Firstinitial0.050.25Secondinitial0.00.20Atequilibriax0.20+xx(0.20+x)=KspΘ(CaCO3)=2.8x10-9⇒x≈1.4x10-8mol.l-1.M(CaCO3)=(0.05–x)Fw(CaCO3)x200=(0.05-x)x100x200/1000=1.0g2、Answer:Ag++e=AgEΘ(Ag+/Ag)Fe3++e=Fe2+EΘ(Fe3+/Fe2+)AgBr=Ag++Br-⇒KspΘ(AgBr)=[Ag+]Ag+Br-=AgBr+eSinceE=E(+)–E(-)=EΘ(Fe3+/Fe2+)-EΘ(Ag+/Ag)So,0.700=0.771–0.0592/1lg(1/[Ag+]0.700=0.771–0.0592/1lg(1/KspΘ(AgBr))KspΘ(AgBr)=5.04x10-133、Answer:CaSO4=Ca2++SO42-0.01xKspΘ(CaSO4)=0.01x=9.1x10-6x=9.1x10-4BaSO4=Ba2++SO42-0.01yKspΘ(BaSO4)=0.01y=1.8x10-10y=1.8x10-8so,BaSO4precipitatesfirst.WhenCaSO4startstoprecipitate,[Ba2+]=KspΘ(BaSO4)/[SO42-]=1.8x10-10/9.1x10-4=1.98x10-7mol.l-14、Answer:2HCl+1/2O2(g)Cl2(g)+H2O(g)Initial(mol)0.020.08x0.200Atequilibria0.02–2x0.016–x/2xx第2页x/(0.064+0.02–2x+0.016–x/2+x+x)=4.0%so,x=0.039,thetitalofthesubstancesis0.0998molP(N2)=0.08x0.8/0.0998x100=64.0kPaP(HCl)=(0.02-2x0.0394)/0.0998x100=12.2kPaP(H2O)=P(Cl2)=0.0394/0.0998x100=3.9kPaP(O2)=(0.016-0.5x0.039)/0.098x100=14.1kPaKΘ={[P(Cl2)/pΘ][P(H2O)/pΘ]}/{[P(HCl)/pΘ]2[P(O2)/pΘ]1/2}=(3.91/100)(3.91/100)/{12.2/100}2(14.1/100)1/2}=0.275、Answer:Ni(s)+4CO(g)=Ni(CO)4(l)ΔfHmΘ(KJ.mol-1.K-1)0-110.5-605.0⇒ΔrHmΘ(KJ.mol-1.K-1)=-605.0–4(-110.5)=-163.0SmΘ(J.mol-1.K-1)29.9197.9420.0⇒ΔrSmΘ(J.mol-1.K-1)=420.0–4x197.9–29.9=-401.5T=ΔrHmΘ/ΔrSmΘ=163.0x103/401.5=405.9K第3页