298K$时龟池Ag(s)|Ag+(0.100mol/kg)||I-(0.0100mol/kg)|AgI(s)|Ag(s)的电动势为E=0.753V,假定离
298K$时龟池Ag(s)|Ag+(0.100mol/kg)||I-(0.0100mol/kg)|AgI(s)|Ag(s)的电动势为E=0.753V,假定离子活度系数等于1,求AgI的溶度积。
298K$时龟池Ag(s)|Ag+(0.100mol/kg)||I-(0.0100mol/kg)|AgI(s)|Ag(s)的电动势为E=0.753V,假定离子活度系数等于1,求AgI的溶度积。
求下列反应在298K时的标准吉布斯n由能变化。
物质 | HAc(aq) | Ac-(aq) | AgCl(s) | Ag+(aq) | Cl-(aq) |
Delta_{f}G_{m}^{Theta }/(kJcdot mol^{-1}) | -399.61 | -372.46 | -109.72 | 77.11 | -131.17 |
计算Pt(s)|Fe2+(c=0.10 mol.dm-3),Fe3+(c=0.20 mol.dm-3)‖Ag+(c=1.0 mol.dm-3)|Ag(s)的电池电动势。
Silver oxide,Ag2O,can decompose into its elements,Ag(S)and O2(g).(a)Write a balanced equation for this decomposition reaction.(b)Calculate theat 298K for the reaction.(c)Suppose Ag2O is decomposed at 298K in a closed container according to the reaction in part(a).What will be the pressure of O2(g)at equilibrium?(d)Suppose Ag2O is decomposed at 573K in a closed container according to the reaction in part(a).What will be the p ressure of O2(g)at equilibrium?
在298K时,使Ag+浓度为m1=1mol/kg和m2=0.1mol/kg的两个溶液相互接触,则发生过程为
Ag+(m1)→Ag+(m2)
A.1.603V
B.0.401V
C.0.622V
D.0.433V
3.298K,向Ag,AgNO3组成的半电池中加入HCl至其中Cl-浓度为0.5mol·dm-3时求Ag+/Ag电对的电极电势?
已知溶液中(Ag+/Ag)=0.800V,(Cu2+/Cu)=0.345V,在25℃时在含有0.01mol·L-1的Ag+和1mol·L-1的CuSO4溶液中,首先在阴极上被还原的是______,开始析出时的阴极电位是______。
两串联电解槽分别进行电解含有Ag+、Cu2+的溶液,当析出Ag的物质的量为0.1mol时,析出Cu的物质的量为
(A) 0.01mol (B) 0.05mol (C) 0.10mol (D) 0.20mol
已知(Ag+/Ag)=0.79V,(Fe2+/Fe)=-0.41V,则反应
逆向自发进行。 ( )
由于(Cu+/Cu)=0.52V,(/I-)=1.09V,(Ag+/Ag)=0.80V,所以还原能力的排序为Cu>Ag>I-。( )
在含Ag+和Ag的溶液中加入氨水,溶液中[Ag+]将________(上升/下降),φ(Ag+/Ag)将________(上升/下降)。