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14. Consider the rechargeable battery: Write reduction half-reactions for each electrode. (3')
2. Consider the following rechargeable battery: Zn (s) ZnCl, (aq) ICI (aq) lai, o C (6) 2.a. (5 p) Write the reduction reaction corresponding to each half-cell. 2.b (p) Indicate the electrode from which the electrons will flow from the direction of the flow of the electrons in the circuit). To justify your answer, consider the electrode potential values to be similar to the corresponding Evalues. Refer to Appendix H in the textbook to find the E' values. 2.c. (5...
Write the half-reactions as they occur at each electrode and the net cell reaction for this electrochemical cell containing copper and silver: Cu(s)|Cu2 (aq)||Ag (aq)|Ag(s) Anode? Cathode? Net cell reaction?
The spontaneous galvanic cell of a lead storage battery (a typical car battery) is composed of the following reduction half reactions reduced 1.69 v Pb02 (s)+ HSO, (aq)+3 Ha0 (aq) + 2 e Pbs04 (s)+5 H20) PbSO4 (s) + H3O (aq) 2 e Pb (s)+HSO (aq)+ H20 (I) E reduced 0.36 V How much current (in A) does a cell phone charger for your car use if your car dies after 14 hours of leaving the phone plugged in without...
Write the half-reactions as they occur at each electrode and the net cell reaction for this electrochemical cell containing indium and cadmium: ln(s)|ln^3+ (aq)||Cd^2+ (aq)|Cd(s) anode: Ln rightarrow Ln^3+ + 3e^- cathode: Cd^2+ + 2e^- rightarrow Cd net cell reaction: 2ln + 3ed^2+ rightarrow 3ed + 2ln^3+
Write the half-reactions as they occur at each electrode and the net cell reaction for this electrochemical cell containing indium and cadmiunm anode: In (aa)+3eInls) cathode: Cd (aq)+2e cals) net cell reaction:21n (aq+3Cdls)2lnls)+3cd (aq)
The following half-reactions occur during use of the rechargeable nickel-cadmium battery: Ca(OH)2(s) + 2e → Cd(s) + 20H(aq) NiO(OH)(s) + H20(1) + e- → Ni(OH)2(s) + OH(aq) This battery has a potential of 1.35 V under standard conditions, with nickel as the cathode. What potential does this battery produce if its hydroxide ion concentration is 1.97 x 10-2 M? E = V the tolerance is +/-2%
In a battery, two solutions are pumped into each half cee. And the two half- 2. reactions take place at two inert electrodes Pt(s). One reaction is based on the reduction of Sn4+ to Sn2+ in solution, and the other reaction is based on the oxidation of Fe+ to Fe3 in solution. a. Write the ha lf-reactions for each half cell, and label with oxidation reaction and reduction reaction. b. Write the line notation for the cell. C. Write the...
A rechargeable battery is constructed based on a concentration cell constructed of two Ag/Ag+ half-cells. The volume of each half-cell is 2.2 L and the concentrations of Ag+ in the half-cells are 1.20 M and 1.3×10−3M. 1.)How long can this battery deliver 2.4 A current before it dies? (in Hours)
A rechargeable nickel-cadmium (NiCd) battery contains the following half-reactions: NiO2 +2H2O(l)+2e– → Ni(OH)2 +2OH– E0 =0.49V Cd(OH)2 +2e– →Cd(s)+2OH– E0 =–0.81V a. What is the standard cell potential or voltage of this NiCd cell? b. Write the net chemical reaction in the direction of spontaneous reaction. Is cadmium oxidized or reduced? c. Write an expression for the reaction quotient Q. What is Q if the electrolyte concentrations are: [NiO2] = 1 M and [Cd(OH)2] = 0.01M and [Ni(OH)2] = 0.001...
Balance the following oxidation-reduction reactions using the half-reaction method. 1. HCOOH (aq) + MnO.. (aq) → CO2 (g) + Mn2. Acidie solution Identify the reduction half Identify the oxidation half Basic solution Identify the reduction half Identify the oxidation half Write a balanced equation for the electrode and overall cell reactions in the following galvanic cell and determine E°. Sketch the cell, labeling the anode and cathode and showing the direction of electron and ion flow. 2. 3. Circle the...