(a)  What quantity of charge (in coulombs) is a fully      charged 1.34-V zinc–mercuric oxide watch battery      theoretically capable of furnishing if the mass of HgO      in the battery is 0.50 g?(b)  What is the theoretical maximum amount of work (in       joules) that can be obtained from this battery?

Q: How many moles of oxygen, O2, will be produced by the electrolysis of water with a current of 1.5…

A:

Q: During a period of discharge of a lead–acid battery, 402 gof Pb from the anode is converted into…

A: Overall cell reaction is Pb(s) + PbO2(s) + 2H+ (aq) + 2HSO4- → 2 PbSO4 + 2H2O Where, 1 mol of Pb is…

Q: A metallic object to be plated with copper is placed in a solution of CuSO.. What mass of copper…

A: Given,  Current, I = 0.22 amp  Time, t = 1.5 hours               = 5400 sec  Molar mass of Cu =…

Q: If the given statement is true, write T. Otherwise, write F and explain why it is false. 1) The…

A: Given the statement: The electrons in a galvanic cell can be transferred through a wire, making it…

Q: A current of 12.0 A is passed through molten magnesium chloride for 14.0 h. How many moles of…

A: Given: Current = 12.0 A Time = 14.0 h

Q: A common car battery consists of six identical cells, each of which carries out the reaction: Pb +…

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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…

A: The binary salt given is CaI2  hence it has cation Ca2+ and anions I-

Q: Molten RbCl can be electrolyzed to form metallic Rb. For what duration should an electrolysis be…

A: we know the expression for the  faraday's law of electrolysis => m/E = It / F Where,  I is the…

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: A battery can provide a current of 4.00 A at 1.60 V for 1.00 hr. How much energy (in kJ) is…

A: Given that a current of 4.00 A was provided by battery at 1.60 V. The power can be calculated as…

Q: Calculate for the standard cell potential, Eo, for the cell.

A: Answer

Q: What is galvanization? How doesgalvanizing iron protect it from corrosion?

A: Corrosion is a natural process that deteriorate the quality of metal by forming an oxide layer over…

Q: state and explain Faraday’s laws of electrolysis. What is Electrochemicalequivalent?

A: Faraday’s first law of electrolysis states that the mass of the substance accumulated or released at…

Q: A battery can provide a current of 2.20 A at 1.00 V for 8.00 hr. How much energy (in kJ) is…

A: Given information,Battery provides a current 2.20 A at 1.00 V for 8.00 hr.Calculate the power,

Q: Calculate the free energy, ΔG°, (kJ/mol) for the galvanic cell performing the following reaction as…

A: The cell reaction given is V + Sr2+ → Sr + V2+ Temperature, T = 25 °C = (25 + 273.15) K = 298.15 K…

Q: How long would it take to deposit 9.38 g of copper (molar mass 63.55 g/mol) at the cathode of an…

A: Faraday's law states that the amount of chemical change that is produced by passing a current to an…

Q: Explain a brief description of electrochemistry and give information about its importance.

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Q: Molten CaCl, can be electrolyzed to form metallic Ca. For what duration should an electrolysis be…

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Q: Why is zero potential possible in electrolysis but not in galvanic cell?

A: In an electrolytic cell, the external electric source is applied for the chemical reaction to occur.…

Q: In galvanic cells, the following must be followed to have a spontaneous reaction between Mg and Fe,…

A:

Q: Calculate the theoretical cell potential of the following cell. If the cell is short-circuited,…

A: The given cell notation is: Ag(s)|Ag+(aq)(0.0575 M) || H+(aq)(0.0333 M)| O2(g)(1.12 atm), Pt The…

Q: A student was asked to set-up a galvanic cell in the laboratory. He used two copper electrodes, one…

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Q: A battery can provide a current of 2.40 A at 2.60 V for 4.50 hr. How much energy (in kJ) is…

A: Answer: If I Ampere current is generated by a battery for t seconds when it is operating at V…

Q: What is the standard cell potential of an electrochemical cell with the overall reaction below? Is…

A:

Q: When building a galvanic cell, what is the importance of the molecule in the anode vs the cathode.…

A: Galvanic cell converts chemical energy into electrical energy. Here Zn rod is dipped in ZnSO4…

Q: Calculate the free energy, AG°, (kJ/mol) for the galvanic cell performing the following reaction as…

A: Oxidation is lose of electrons. Reduction is gaining of electrons. The reactions where oxidation and…

Q: 4.) What mass of silver can be plated onto an object in 45 minutes at 9.0 A of current?

A:

Q: In a galvanic cell, a full redox reaction takes place, one half-reaction at each electrode. How is…

A:

Q: A battery can provide a current of 2.20 A at 1.40 V for 10.0 hr. How much energy (in kJ) is…

A: GIVEN: Current = 2.20 A Voltage = 1.40 V Time= 10.0 hr To CALCULATE: Energy (kJ)

Q: How long will it take to plate out 0.270 g of iron metal from a solution containing Fe3+(aq) in an…

A: Electrochemistry is branch of chemistry in which we deal with oxidation and reduction reaction…

Q: The Nickel-Cadmium battery cell has a standard potential of 1.2 V. What is the standard free energy…

A: The relation between Gibbs free energy change and emf of cell is given by,  ∆G = -n F Ecell Ecell is…

Q: Molten CaCl, can be electrolyzed to form metallic Ca. For what duration should an electrolysis be…

A: Given-> Current (I) = 2.99 ampere Weight of Ca= 23.5 gm

Q: Discuss in detail the future of lead-acid battery, considering the extensive development and use of…

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Q: 0.115 V, what is the value of the standard free energy (in kJ) for this reaction?

A:

Q: You pass a 2.5 amp current through an aqueous solution of aluminum nitrate for 5 hours. How many…

A: Aluminium nitrate Al(NO3)3 has Al3+ ions Al3+ + 3 e-  -----> Al So to reduce 1 mole Al3+ ions to…

Q: A 0.1 M aqueous CaCl, solution is electrolyzed by usina inert electrodes. If 1.25 ampere current is…

A: At cathode this reaction is taking place,Ca2+  +  2e-   →  Ca  Calculate the charge first,Q = it and…

Q: Molten CaCl2 can be electrolyzed to form metallic Ca. For what duration should an electrolysis be…

A: Answer = 1268.9 min

Q: (a)  What quantity of charge (in coulombs) is a fully      charged 12-V lead–acid storage battery…

A: Half reaction of the lead acid battey : Pb + SO42- —> PbSO4 + 2e- PbO2 + SO42- + 4H+ + 2e- —>…

Q: Molten RbCl can be electrolyzed to form metallic Rb. For what duration should an electrolysis be…

A:

Q: Aluminum is produced commercially by the electrolysis of Al2O3 in the presence of a molten salt. If…

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Q: A battery can provide a current of 3.80 A at 3.60 V for 8.00 hr. How much energy (in kJ) is…

A: Given that a current of 3.80 A was provided by battery at 3.60 V. The power can be calculated as…

Q: How long would it take to deposit 9.38 g of copper (molar mass 63.55 g/mol) at the cathode of an…

A: Given, m = 9.38g I= 23.2A

Q: A Ni Ni 2+Ag Ag + galvanic cell is constructed in which the standard cell potential is 1.03 V.…

A: cell potential = 1.03 V wt of silver deposited= 1g  Free energy :  The maximum work a system can…

Q: Determine the overall reaction and its standard cell potential at 25 °C for the reaction involving…

A: Aluminum nitrate = Al(NO3)3

Q: Molten CaCl2 can be electrolyzed to form metallic Ca. For what duration should an electrolysis be…

A:

Q: Calculate the standard free-energy change of a voltaic cell with a potential of 0.35 V under…

A: Given data: E0cell = 0.35V no of moles(n) = 2moles of electron formula used: ∆G0 = -nFE0cell  Where…