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Fe s + 2fe3+ aq → 3fe2+ aq

WebCr2O7+6Fe2++14H+─→2Cr3++6Fe3++7H2O （5）FeS+4HNO3─→Fe（NO3）3+S↓+NO↑+2H2O√ （6）（3）Fe2++NO3-+4H+─→（3）Fe3++NO↑+2H2O×. 5.指出下列各原电池符号的表示式是否正确,并把错误的予以改正。 （1）氧化还原反应: Fe（s）+Ag+（aq）─→Fe2+（aq）+Ag（s） 原电池 … WebOct 28, 2024 · of the following reactions at 25 ∘C. Part A 2Fe3+ (aq)+3Sn (s)→2Fe (s)+3Sn2+ (aq) Express the energy change in kilojoules to two significant figures. Part B …

河南郑州市二中高考化学二轮复习考点各个击破倒计时第40天 电化 …

Web届高考化学二轮复习6道主观大题组合专题卷含答案6道主观大题组合练1以硫酸渣含Fe2O3SiO2等为原料制备铁黄FeOOH的一种工艺流程如下:1酸溶中加快溶解的方法为写出一种.2还原过程中的离子方程式为.3沉铁过程中生成FeOH2的化学方程式 WebFeb 8, 2024 · F e X 2 + ( a q) + S X 2 − ( a q) ↽ − − ⇀ F e S ( s) The equilibrium constant for the reaction is 1.6 × 10 17 at 298 K. If equal volumes of 0.06 M of F e X 2 + and 0.2 M of … game up with kev song https://lovetreedesign.com

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WebSn2+ (aq) + 2Fe3+ (aq) → 2Fe2+ (aq) + Sn4+ (aq) A)+0.617 B)+1.39 C)+1.21 D)-0.46 E)+0.46 21) 22)The standard cell potential (E°cell) for the voltaic cell based on the … WebChapter 20 Electrochemistry. 1) Which element is reduced in the reaction Fe(CO)5 (l) + 2HI (g) → Fe(CO)4I2 (s) + CO (g) + H2 (g) Web6.13 From the following Latimer diagram (which does not correspond to standard conditions), calculate the value of E for the reaction 2 HO,(aq) - Oz(g) + H2Oz(aq). -0.125 - HO, +1.510 H,O2 Comment on the thermodynamic tendency of HO, to undergo disproportionation.... blackheads on face treatment

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Fe s + 2fe3+ aq → 3fe2+ aq

CHM Ch. 20 2024 Flashcards Quizlet

Web(2) 当H2O与CO物质的量之比为3时，CO的 第4/5页 转化率为多少? (3) 根据计算结果，你能得出什么结论? （提示：在体积恒定时，物质的量之比等于浓度之比，故当H2O与CO物质的量之比为1时，则c(H2O)/ c(CO)=1 . （1） 起始浓度为／(mol?L-1) c c 0 0 平衡浓度／(m WebMany thanks in advance for your help! Reply 1. 13 years ago. A. 1) D is correct because Fe (s) is being oxidised and Fe3+ is being reduced when the two cells are joined. In A, the arrow is the wrong way round. 2) D is correct: -0.40 - (-0.75) = +0.35v. Reply 2.

Fe s + 2fe3+ aq → 3fe2+ aq

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WebCr (s) + 3Fe3+ (aq) → 3Fe2+ (aq) + Cr3+ (aq) A)+1.57 B)-1.45 C)+1.51 D)+3.05 E)+2.99 22) 23)The standard cell potential (E°cell) for the voltaic cell based on the reaction below is _____ V. 2Cr (s) + 3Fe2+ (aq) → 3Fe (s) + 2Cr3+ (aq) A)-0.16 B)+3.10 C)+0.83 D)+2.80 E)+0.30 23) 24)The standard cell potential (E°cell) for the voltaic cell ... Web3Sn4+ (aq) + 2Cr (s) → 2Cr3+ (aq) + 3Sn2+ (aq) +0.89. The relationship between the change in Gibbs free energy and the emf of an electrochemical cell is given by …

WebThe cell in which the following reaction occurs: 2Fe 3 + (aq)+2I - (aq)→2Fe 2 + (aq)+I 2(s)hasE (cell)⊙ =0.236V at 298 K. Calculate the standard Gibbs energy and the … Web河南郑州市二中高考化学二轮复习考点各个击破倒计时第40天 电化学基础 word含答案河南省郑州市二中2016届高考化学考点各个击破含答案:倒计时第40天 电化学基础1高铁电池是一种新型可充电电池,与普通高能电池相比,该电池能长时间保持稳定的

Web1. Calculate the standard emf for each of the following reactions: a)H2(g) + F2(g)---> 2H+(aq) + 2F-(aq) b)Cu(s) + Ba 2+(aq)---> Cu 2+(aq) + Ba(s) c)3Fe 2+(aq)---> Fe ...

WebAg+ (aq) + Cl- (aq) → AgCl (s) Given the following table of thermodynamic data, What is the temperature above which the reaction is nonspontaneous under standard conditions?

WebFe (s) + Ni (NO3)2 (aq) → Fe (NO3)2 (aq) + Ni (s) Fe gains two electrons. Fe is the oxidizing agent. Fe is reduced. Fe is the reducing agent. Fe is the reducing agent. … blackheads on inner thighWebFeb 8, 2024 · Consider this reaction: (1) F e X 2 + ( a q) + S X 2 − ( a q) ↽ − − ⇀ F e S ( s) The equilibrium constant for the reaction is 1.6 ⋅ 10 17 at 298 K. This is nothing but a weird statement of the K s p for FeS. Instead of concentrations let's use activities, a, for the species which is formally correct. (2) K e q = a F e S a F e X + 2 ... blackheads on forehead and lipsWebCalculate its degree of dissociation and dissociation constant. Give λ° (H+) = 349.6 S cm2 mol–1 and λ° (HCOO– ) = 54.6 s cm2 mol–1. 2Fe3+ (aq) + 2I–(aq) 2Fe2+ (aq) + I2(s) … blackheads on forehead