One electrode in an alkaline battery is zinc, and the other is manganese dioxide. (a) Fill in the blank for the chemical reaction at the zinc electrode: Zn + 20H¯→ZnO + + 2e. (b) Fill in the blank for the reaction at the manga- nese electrode: 2MnO, + H;O + _→ Mn;O3 + 20H. (c) Which electrode is positive and which is negative? E

Q: What is the electrical current, in Amperes, that must be applied if 6.50 g Ag is deposited at the…

A:

Q: A galvanic cell consists of a cathode with a cadmium electrode in a 0.252 M solution of Cd(NO3)2 and…

A: The concentration of cadmium ions at anode is equal to the concentration of cadmium nitrate solution…

Q: In the electrolysis of water, how long will it take to produce 155.0Lof H2 at 1.0 atm and 273 K…

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Q: A molten binary salt, Cal2, is electrolyzed. Write the half reactions that occur and identify which…

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Q: Cl2 + Br → Ch + Br2

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A:

Q: How long must a constant current of 50.0 A be passed through an electrolytic cell containing aqueous…

A: The balanced chemical equation for the reduction of copper is: Thus, for the production of 1 mole…

Q: A galvanic cell with a voltage of 1.3 V utilises the reaction: Zn + Cu2+ →→ Cu + Zn2+, as a source…

A: Given: The cell voltage is 1.3 V. The amount of Cu and Zn used is 6.3 g and 11 g, respectively.

Q: Write the cell diagram for a galvanic cell consisting of an Al electrode placed in a 1 M Al(NO3)3…

A: Given:-           Al electrode placed in IM AlNO33 solution          Ag electrode placed in IM…

Q: A galvanic cell is based on the following reaction(at 25°C)： Cu (aq)+Sn(s) → Cu(s)+Sn (aq) If the…

A: Note - The given reaction is incorrect. So, we will use the correct reaction for the question.   A…

Q: Calculate E°ell for the cell schematic as written: Fe(s) | 1M FeCl, (aq) || 1 M AI(NO,)o (ag) | Al…

A: The cell given is .

Q: Given the reaction    4 Al(s) + 3O2(g) ===>  2Al2O3(s), write the half reactions and calculate…

A: The reaction given is, => 4 Al (s) + 3 O2 (g) --------> 2 Al2O3 (s)

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A:

Q: A proposed battery involves the reaction of Zn(s) and Cl2(g) to give ZnCl2. If you want such a…

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Q: 5. Identify the two half-cell reactions for the redox reaction: 2MNO, + 10CI + 16H = 2Mn* + 5Cl, +…

A: Cathode half cell reaction ( reduction ): MnO4 (aq)- + 8H(aq)+ + 5e- → Mn(aq)2+  + 4H2O(l)  Anode…

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Q: A fuel cell is constructed in which both electrodes make use of the oxidation of methane. The…

A: (a)

Q: Explain the following relationships: Delta G and w, cell potential and w, cell potential and Delta…

A: The equations for the relationship between Delta G and w, cell potential and w, cell potential and…

Q: An electrochemical cell consists of a silver metal electrode immersed in a solution with Ag+| = 1.0…

A: Since Ag+(aq) has a higher reduction potential, Ag+(aq) will undergo reduction to Ag(s) and act as…

Q: Calculate the standard emf of a cell that uses Ag/Ag¯ and Al/Al³* half-cell reactions. Write the…

A: Please find your solution below :

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A: Solution :    Nernst equation is used to calculate the potential of the cell at non-standard…

Q: Write the cell notation for an electrochemical cell consisting of an anode where Al (s) is oxidized…

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Q: Copper can be electroplated at the cathode of an electrolytic cell by the half-reaction: Cur"(aq) +…

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Q: How long, in minutes, will it take to produce 370.0 g of pure lithium by running a current of 330 A…

A: Given, Current passing = 330 A Mass of Li = 370.0 g  Molar mass of Li = 6.94 g/mol

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Q: What is understood by a normal hydrogen electrode? Give its significance.

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Q: The electrodes in a silver oxide battery are silver oxide 1Ag2O2 and zinc. (a) Which electrode acts…

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Q: Write the cell notation for an electrochemical cell consisting of an anode where Zn (s) is oxidized…

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Q: How are standard electrode potentials measured?

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A:

Q: What is the potential of a concentration cell at 25.0 °C if it consists of copper electrodes dipping…

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Q: A Zn Zn2 + Co 2+ Co  galvanic cell is constructed in which the standard cell potential is 0.48 V.…

A: Given: A galvanic cell :                    ZnZn2+Co2+Co                  E0cell = 0.48V = 0.48 JC-1…

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Q: Consider an electrochemical cell constructed from the following half cells, linked by a KCI salt…

A:

Q: How long (hr) must a constant current of 50.0 A be passed through an electrolytic cell containing…

A: Answer: 5.36 hr

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A: 39.9 g

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Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.