Calculate K for this reaction.  How long in hours would you have to let it go until you lower the voltage by 5 percent of the E from the Nernst equation at 7.2 amps?

Q: At 25 oC a zinc-copper battery is constructed as follows:  Zn|Zn2+(0.1000 M)||Cu2+(2.500 M)|Cu…

A: Using Nerst equation  Ecell  = Eocell - (0.0591/n ) log [ Zn2+ ]/[ Cu2+ ]

Q: 19.77 The cell reaction NiO2 (s) + 4H* (ag) + 2Ag (s) → Ni²+ (ag) + 2H2O+2Ag* (aq) has E = 2.48 V.…

A: The cell potential, Ecell, is a calculation of the potential difference between two-half cells in an…

Q: A student does an experiment to determine the molar solubility of lead(II) chloride. She constructs…

A: Since lead has been used in both anode and cathode compartments in the same electrolytic solution,…

Q: (a) Write the anode and cathode reactions and the overall reaction occurring in a lead storage…

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Q: the cell notation for galvanic cell S. late the concentration of chromium ion, Cr in the solution…

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Q: Chromium is electroplated from CrPO4 solution. A constant current of 13.5A is applied by an external…

A: According to the first law of Faraday, the mass of metal deposited at the anode is given by: m = E I…

Q: Suppose a metal electrode is being coated with silver according to the half-reaction, Ag+(aq) + e-…

A: Current = 0.850 A Time = 20.0 min  ....Or = 20.0 min × (60 sec / 1 min )   ...(because, 1 min = 60…

Q: An electrochemical cell is constructed such that on one side a pure cadmium electrode is in contact…

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Q: A voltaic cell consists of a Zn/Zn half-cell and a Ni/Ni* half-cell at 25 °C. The initial…

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Q: A cell is prepared by dipping a copper rod in 0.01 M CuSO4 solution and zinc rod in 0.02 M of ZnSO4…

A: Given :  E°Zn+2/Zn  = -0.76 V  E°Cu+2/Cu = 0.34 V  [CuSO4] = 0.01 M  [ZnSO4] = 0.02 M

Q: Calculate the emf of a cell made up of iron and lead electrodes in a solution of Fe and Pb of equal…

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Q: Fe2+ (0.2 M) | Pt (s) A)  At 25 ºC, when the reaction quotient, Q, is equal to the equilibrium…

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Q: 3- Calculate the exact half-cell potential of Co in 0.01 M CoCl2.

A: Given, The concentration of CoCl2 = 0.01 M The half cell reaction Co→Co2+ +2e-

Q: The cell notation for the Galvanic cell is              A(s)/A2+//B2(s)/B- The Standard Reduction…

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Q: X(s)|X1+ (0.99 M) || Mn O4 1 minus (0.18 M)|Mn2+ (1.90 M)|H+ (2.64 M) The reduction potential for…

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Q: O ELECTROCHEMISTRY Understanding concentration cells 1/5 A certain metal M forms a soluble sulfate…

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Q: How long will it take to plate out 1.9 g Ni from aqueous Ni2+ with a current of 114.4 A? HOW DO WE…

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Q: A solution containing vanadium (chemical symbol V) in an unknown oxcidation state was electrolyzed…

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Q: X(s)|X4+ (0.87 M) || Mn O4 1 minus (1.61 M)|Mn2+ (2.98 M)|H+ (1.49 M) The reduction potential for…

A: Given information: Reduction potential for X4+ = 2.22 V Reduction potential for MnO4- = 1.51 V

Q: Consider the following half-cell reactions and associated standard half-cell potentials  Ag+ + e- ?…

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Q: Use the standard cell potential to calculate the value of the equilibrium constant, K, at 25°C for…

A: The electrochemical cell that utilized energy released from spontaneous chemical reaction to produce…

Q: Calculate the theoretical potential of the following cells. Indicate whether the reaction will occur…

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Q: Calculate the pressure of H2 required to stop corrosion of iron immersed in 0.1 M FeCl2, pH=4. Efe…

A: Given that The corrosion of iron immersed in 0.1 M FeCI2 and PH=4 The cell notation is  Fe → Fe3+ +…

Q: 28). What statement about a galvanic cell constructed with Cu*/Cu and Fe2+/Fe is correct? Standard…

A: Given : reduction potential of Cu+/Cu reaction = 0.52 V and reduction potential of Fe2+/Fe reaction…

Q: Find the following using a galvanic cell containing Cr(s)/Cr3+(aq) along with Co(s)/Co2+(aq) a.…

A: The basic components of a galvanic cell where two different electrodes are used are: Anode: It is…

Q: 40.00 mL of 0.300 M Fe3+ solution is titrated with 0.150 M Sn2+ solution.   a) Calculate the…

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Q: . What mass of lead is deposited on the cathode during the electrolysis of lead (II) sulphate…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Consider the following cell reaction: Fe(s) + 2 H*(? M) –Fe²*(1.00 M) + H>(g)(1.00 atm) If the cell…

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Q: A galvanic (voltaic) cell consists of an electrode composed of magnesium in a 1.0 M magnesium ion…

A: In an electrochemical cell, the chemical energy due to the chemical reactions is converted into…

Q: A cell constructed in which one half-cell consists of a Zn wire dipped in a solution of Zn(NO3)2.…

A: The electrode reactions will be as follows:

Q: 1. Consider the reaction: MnO2(s) + 4H*(aq)+ 2B1¯(aq) → Mn2+(aq) + Br,(l)+2H,O(1) At what pH will…

A: The electrochemical cell is the one that generates electrical energy from chemical energy. It is…