A zinc bar weighing 3.0 kg is attached to a buried iron pipe to protect the pipe from corrosion. An average current of 0.020 A flows between the bar and the pipe. How many years will be required for the zinc bar to be entirely consumed?

Q: A constant current of 1.6 A is used to precipitate copper at the cathode and oxygen at the anode of…

A: value of constant current = 1.6 A Time = 30.4 minutes cathode - copper Anode - oxygen

Q: A constant current is passed through an electrolytic cell containing molten MgCl2 for 12 hours. If…

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Q: A current of 3.37 A is passed through a Cu(NO3)2Cu(NO3)2 solution for 1.30 h. How much copper is…

A: Given, the current = 3.37 A Time = 1.30 hour Now change the current (From A to C/s) and time (min…

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

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Q: one process used for electroplating silver, a current of 10.23 A was passed through an electrolytic…

A: Electroplating is a process in which a thin layer of one metal is deposited on another metal surface…

Q: Copperplating is a technique in which copper metal is deposited electrolytically on a surface to…

A: The objective of this question is to calculate the time required to plate 1.50 g of copper metal…

Q: A zinc bar weighing 3000g is attached to a buried iron pipe to protect the pipe from corrosion. An…

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Q: A certain half-reaction has a standard reduction potential Ed=+1.18 V. An engineer proposes using…

A: Standard reduction potential:

Q: The mass of three different metal electrodes, each from a different galvanic cell, were determined…

A: The active electrode which is found to lose mass during redox reaction in a cell is termed as anode…

Q: A 215-mL sample of a 0.500 M NaCl solution with an initial pH of 7.00 is subjected to electrolysis.…

A: Gien: Volume of a sample = 215 mL NaCl = 0.500M pH = 7 After 15 minutes, Volume removed = 10 mL HCl…

Q: Consider the electrolysis of tin (II) sulphate during which tin is deposited at one electrode and…

A: A numerical problem based on electrolysis, which is to be accomplished.

Q: A student uses a strip of metal in an electrolysis circuit in which the metal strip serves as the…

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Q: Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive)…

A: We have given that Current (I) = 240 mA = 0.24 A Time (t) = 55 sec Equivalent weight of silver =…

Q: A current of 2.90 A was applied to an electrolytic cell containing molten CdCl2 for 54 minutes.…

A: We have to calculate the mass of cadmium metal deposited when current passed is 2.90 A for 54…

Q: An electrochemical cell is constructed in which the silver ions in silver chloride are reduced to…

A: Given,  A current of 0.500 A is passed through the cell for 101 minutes. The mass of copper metal…

Q: Zinc metal is deposited onto a cathode surface by passing a current of 1.87 amps through a solution…

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Q: An aqueous solution of an unknown salt of molybdenum is electrolyzed by a current of 2.50 A passing…

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Q: A current of 4.05 A is passed through a Cu(NO3)2 solution for 1.70 h. How much copper is plated out…

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Q: A current of 0.80 A was applied to an electrolytic cell containing molten CdCl2 for 2.5 hours.…

A: An electrolytic cell uses electric energy to perform a redox reaction not spontaneous. A kind of…

Q: Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive)…

A:

Q: A current of 0.46 A was passed through a copper (II) sulfate solution using copper electrodes for 16…

A: According to faraday law of Electrolysis:

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

A: Given,Current = 59.0 ATime = 66 sec.Molar mass of lead 207.2 g/mol

Q: A constant current of 7.50 mA is allowed to flow through an electrochemical cell for 536 s as Zn2+…

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Q: A small part with a surface area of 2.62 cm2 is plated with a gold coating that is 5.00  10–4 mm…

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Q: Copper is electroplated from CuSO4 solution. A constant current of 5.79 A is applied by an external…

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Q: The electrolysis of CuCl2(aq) produces Cu(s) and Cl2(g). What is the minimum external emf needed to…

A: Electrolysis is a non spontaneous process and to drive this process external emf is required.

Q: In the Hall-Heroult process, a large electric current is passed through a solution of aluminum oxide…

A: Given; The reaction is as follows; Al3+aq+3e-→Als Charge on one mole of electrons=1Faraday 1 Faraday…

Q: A certain half-reaction has a standard reduction potential E=-0.80 V. An engineer proposes using…

A: Answer

Q: A certain half-reaction has a standard reduction potential =E0red−0.34V . An engineer proposes…

A: