电极组成原电池测定该电池的电动势而得到的电极电势的相对值，在实际测 定中常以 电极为参比，与待测电极组成原电池测定之。 8、[CrNH)4(HOh](NO2的名称是 :氯化二氯二乙二胺水合钴（Ⅱ） 的化学式为 9、已知K8(H2S=1.32×107,K82(2S=7.10x1015.在HS饱和溶液中，当cH1.0x10 5molL1,该溶液的cS2= mol-L-1,c(HS)= mol-L-I。 10、当Cu与氨或乙二胺分别形成配位化合物时，稳定性较大的是 一，其原因可用热力 学函数中的 来解释。 Please balance the following chemical equations(two equations,2 points for each one,4 points in total) 1、PbO2+MnBr2+HNO3 →Pb(NOh+Br2+HMnO4 2、C103+T+H+→C+2+H0 Questions(two questions,5 points for each one,10 points in total) Try to design a simple method to separate the ions from a solution containing Fe2,Ni2,and AI3+。 3 Write out the two half-reactions and a voltaic cell diagram based on the following chemical reaction 2Ag(s)+2H(aq)+2I(aq)2Agl(s)+I2 Answer the following questions according to requests(5 questions,33 points in total) 1(poimts)Add (NH4C3(0mL50m-Ltasolution (pH-700)containing Ca(0m 0.10mol-L),calculate(1)the mass of CaCO;formed.(2)the concentration of Ca in solution (note:the hydrolysis of CO3 and ionization of NH4'is not taken into account:Kp (CaC0)=2.8x109,Fw(CaC0)=100) 2(6points)It is known that(Ag/Ag)and (Fe/Fe2)are 0.799V and 0.771V,respectively, and E=0.700V for the cell (=)Ag,AgBr|Br(1.0mol-L-)Fe3(1.0mol-L-), Fe+(1m-P(+).calculate the value of standard solubility product constant(AgBr) 第5页 _________________电极组成原电池测定该电池的电动势而得到的电极电势的相对值。在实际测 定中常以_________________电极为参比，与待测电极组成原电池测定之。 8、[Cr(NH3)4(H2O)2]( NO3)2的名称是________________________；氯化二氯·二乙二胺·水合钴( ) Ⅱ 的化学式为 ____________________。 9、已知K (H2S)=1.32×10-7，K (H2S)=7.10×10-15。在H2S饱和溶液中，当c(H+)=1. 0×10－ 5 mol·L-1，该溶液的c(S2-)=____________mol·L-1，c(HS- )=____________mol·L-1。 10、当Cu2+与氨或乙二胺分别形成配位化合物时，稳定性较大的是________，其原因可用热力 学函数中的________来解释。 四、Please balance the following chemical equations (two equations, 2 points for each one, 4 points in total) 1、 PbO2 + MnBr2 + HNO3 → Pb(NO3)2 + Br2 + HMnO4 2、 ClO3 - + I- + H+ → Cl- + I2 +H2O 五、Questions(two questions, 5 points for each one, 10 points in total) 1、 Try to design a simple method to separate the ions from a solution containing Fe2+、Ni2+、and Al3+。 2、 Write out the two half-reactions and a voltaic cell diagram based on the following chemical reaction 2Ag(s)+ 2H+ (aq)+ 2 I- (aq) → 2AgI(s) + I2 六、Answer the following questions according to requests (5 questions, 33 points in total) 1、(6 points) Add (NH4)2CO3 (100mL, 0.50mol·L-1) to a solution (pH=7.00) containing Ca2+ (100ml, 0.10mol·L-1), calculate (1) the mass of CaCO3 formed; (2) the concentration of Ca2+ in solution (note: the hydrolysis of CO3 2- and ionization of NH4 + is not taken into account; Ksp Θ (CaCO3) = 2.8x10-9, Fw(CaCO3) = 100) 2、(6points) It is known that E (Ag+/Ag) and E (Fe3+/Fe2+) are 0.799V and 0.771V, respectively, and E =0.700V for the cell (−)Ag ， AgBr⏐Br- (1.0mol·L-1) Fe3+(1.0mol·L-1) ， Fe2+(1.0mol·L-1)⏐Pt(+), calculate the value of standard solubility product constant Ksp Θ(AgBr) 第 5 页