Initial mass of copper electrode (g) 1.201g Final mass of copper electrode (g) 1.163g Initial mass of key (g) 8.464g Final mass of key (g) 8.525g Average current (A) 0.015 A Time of current application (s) 30 min Electroplating. Write the oxidation and reduction half-reactions for this process.

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A: this problem is based on faraday 1at  law  According to this law amount of substance deposited at…

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Q: Determine the molar mass (amu) of Metal (M) if it took 2.91 minutes for a current of 1.2 A to plate…

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Q: A zinc bar (atomic mass = 65.38 g/mol; ion charge = 2) is weighing 2.08 kg is attached to a buried…

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Q: Enter electrons as e. Use smallest possible integer coefficients for ALL rea If a box is not needed,…

A: Cu+2(aq) +Mn (s)----> Mn+2(aq) + Cu (s)

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A: The Faraday’s first law of electrolysis state that the mass of the substance  deposited at any…

Q: A     constant current     of     0.800     A     is     used to deposit copper     at    the…

A: I = 0.8A t = 15.2min F = 96485 C Cu deposited at cathode. O2 deposited at anode. Mol. mass of Cu =…

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A: The reaction at Cathode is Lead sulphate is reduced to Lead. PbSO4 + 2e- ---> Pb + SO4 2-

Q: 1.90 cm in diameter. How many days will it take to produce a layer of gold 0.250 mm thick (on both…

A: Given data are as follows: Diameter of coin = 1.90 cm  Thickness of coin = 0.250 mm = 0.025 cm…

Q: E The saturated calomel electrode, abbreviated SCE, is often used as a reference electrode in making…

A: Given the standard potential of the saturated calomel electrode(SCE), Eo = 0.242 V

Q: 16. An electrochemical cell containing zinc sulfate with a Zn electrode is connected in a series…

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Q: Silver can be electroplated at the cathode of an electrolysis cell by the half-reaction. Ag+ (aq) +…

A: The metal deposited on cathode is directly dependent to the amount of charge passed.

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A: Given: Both electrodes of the voltaic set there is an acid solution that produces hydrogen gas at…

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Q: When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic…

A: Given data,Current=29.0ATime=69.0sReaction at cathode;Pb2++2e-→Pb(s)

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A: Given,  Time(t)  = 2.0 hrs = 7200 seconds  Current(i) = 2.80 amp Faraday's constant(F)  = 96, 485…

Q: Initial mass of copper electrode (g) 1.201g Final mass of copper electrode (g) 1.163g Initial…

A: We first need to calculate the theoretical mass of copper that should have been deposited, using…

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A: Given data, Molarity of H+=1.0MPressure of O2=1.0atmEocathode=1.23VEcell=1.62V

Q: You would like to produce a gold-plated coin by plating gold onto a penny 1.90 cm in diameter. How…

A: Given : diameter of coin = 1.9 cm => radius of coin, r = 1.9 / 2 = 0.95 cm and thickness of gold…

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Q: Initial mass of copper electrode (g) 1.201g Final mass of copper electrode (g) 1.163g Initial…

A: Given information: Initial mass of copper electrode (g) = 1.201g Final mass of copper electrode (g)…

Q: When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic…

A:

Q: Copper metal can be produced from a solution containing copper sulphate by passing the solution ver…

A: Answer: As we know that,                           In first case copper sulphate (CuSO4) solution,…

Q: how many electrons were transferred? (Solve all three question mentioned in the attachment)

A: (a)   Balance cell reaction is: 3Cd(s)   + 2MnO4-(aq)  + 4H2O(l)    → 3Cd(OH)2(s)   + 2MnO2(s) +…

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Q: You would like to produce a gold-plated coin by plating gold onto a penny 1.90 cm in diameter. How…

A: Given : Diameter of coin = 1.9 cm => radius of coin = 1.9 / 2 = 0.95 cm = r And thickness of gold…

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A: The equation for the standard cell potential of a Galvanic cell is: Eocell = Eocathode - Eoanode…

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Q: A current of 200 A flows for 22.0 hours at an anode where the reaction occurring is Mn2*(aq) +…

A: Interpretation- To determine the mass(in Kg) of MnO2  is deposited on this anode when a current of…

Q: A magnesium bar with a mass of 6.0 kg is attached to a buried iron pipe to serve as a sacrificial…

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Q: A magnesium bar with a mass of 5.9 kg is attached to a buried iron pipe to serve as a sacrificial…

A: We will consider the reduction potential of Iron and magnesium to proceed with the problem.

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A: Current I = 12 A Time t = 1.5 hours Ag+   +  1e  --> Ag We need to find Ag deposited on…

Q: In each voltaic cell, one half-cell contains a 1.0 M Fe1NO3221aq2 solution with a Fe electrode. The…

A: The reduction potential of each half cell is shown here-ECu+2/Cu°=+0.34 VEFe+2/Fe°=-0.44…

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Q: A magnesium bar with a mass of 5.9 kg is attached to a buried iron pipe to serve as a sacrificial…

A: (a) Answer - surface of magnesium --> Mg(s) = Mg2+ + 2e- this is the half equation of oxidation…

Q: You would like to produce a gold-plated coin by plating gold onto a penny 1.90 cm in diameter. How…

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Q: mass of an rolysis product from the applied... When a lead acid car battery is recharged by the…

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Q: 2 H2(g) + O2(g) → 2 H,0(1) ran = -474 kJ/mol AG Electrode Half-Reaction Standard Reduction Potentlal…

A: Given: The reaction is : 2H2 (g) + O2 (g) ---> 2 H2O (l) Gorxn = -474 kJ/mol          =-474000…

Q: It is known that at both electrodes of the voltaic cell there is an acid solution that produces…

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