container containing 0.0125mol SbCls at T=248C with Kp=1.07.Please calculate the partial pressure of each constitute and the total pressure of the system at equilibrium. 3.(5 points)Add dropwise a solution of Na2SO4 into a mixture of 0.010mol-LAgNO3 and 0.010mol-L Ca(NO3)2.(1)predict via calculation which kind of cations is precipitated first,(2)what the concentration of the first precipitated cation is when the second kind of cations begins to precipitate? (K绵(CaS04)=9.1x10-6,K绵(AgS04F1.4x105) 4.(5 points)The standard electrode potentials of the following electrode reactions at 298K are given below:Cu"(aq)+2e=Cu(s) E6=0.3394V Cu'(aq)+e ==Cu(s) E9-0.5180V (1)Please calculate the standard reaction constantKe at 298K of the reaction Cu(aq)+Cu(s)===2 Cu"(aq); (2)Please calculate the standard reaction constant Kat 298K of the reaction Cu(aq)+Cu(s)+4CI (aq)==2CuClz(aq),given Kr(CuCl2")=6.91x10. 第7页container containing 0.0125mol SbCl5 at T = 248℃ with Kp = 1.07. Please calculate the partial pressure of each constitute and the total pressure of the system at equilibrium. 3. (5 points) Add dropwise a solution of Na2SO4 into a mixture of 0.010mol·L-1AgNO3 and 0.010mol·L-1 Ca(NO3)2. (1) predict via calculation which kind of cations is precipitated first; (2) what the concentration of the first precipitated cation is when the second kind of cations begins to precipitate? (K (CaSO4)=9.1×10-6，K SO4)=1.4×10-5) (Ag2 4. (5 points) The standard electrode potentials of the following electrode reactions at 298K are given below: Cu2+(aq)＋2e－ === Cu(s) E =0.3394V; Cu+ (aq)＋e － === Cu(s) E =0.5180V; （1）Please calculate the standard reaction constant KΘ at 298K of the reaction 2+ + Cu (aq)＋Cu(s) ===2 Cu (aq); （2）Please calculate the standard reaction constant KΘ at 298K of the reaction 2+ Cu (aq)＋Cu(s)＋4Cl- -1 (aq)===2CuCl2 (aq), given Kf Θ (CuCl - )=6.91×104。 2 第 7 页