To relate current, time, charge, and mass for electroplating calculations.
Electroplating is a form of electrolysis in which a metal is deposited on the surface of another metal. To quantify electrolysis, use the following relationships.
Electric current is measured in amperes (A ), which expresses the amount of charge, in coulombs (C ), that flows per second (s ):
1 A=1 C/s
Another unit of charge is the faraday (F ), which is equal to a mole of electrons and is related to charge in coulombs as follows:
1 F=1 mol e−=96,500 C
Galvanized nails are iron nails that have been plated with zinc to prevent rusting. The relevant reaction is
Zn2+(aq)+2e−→Zn(s)
For a large batch of nails, a manufacturer needs to plate a total zinc mass of 2.30 kg on the surface to get adequate coverage.
How many coulombs of charge are needed to produce 35.2 mol of solid zinc?
Express your answer to three significant figures and include the appropriate units.
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To relate current, time, charge, and mass for electroplating calculations. Electroplating is a form of electrolysis...
Part B and D Please show all of the steps. Learning Goal: To relate current, time, charge, and mass for electroplating calculations. Electroplating is a form of electrolysis in which a metal is deposited on the surface of another metal. To quantify electrolysis, use the following relationships. Electric current is measured in amperes (A), which expresses the amount of charge, in coulombs (C), that flows per second (s): 1 A 1 C/s Another unit of charge is the faraday (F),...
Galvanized nails are iron nails that have been plated with zinc to prevent rusting. The relevant reaction is Zn2+(aq)+2e−→Zn(s) For a large batch of nails, a manufacturer needs to plate a total zinc mass of 3.20 kg on the surface to get adequate coverage. Part B: How many coulombs of charge are needed to produce 48.9 mol of solid zinc? Express your answer numerically in coulombs.
Galvanized nails are iron nails that have been plated with zinc to prevent rusting. The relevant reaction is Zn2+(aq)+2e−→Zn(s) For a large batch of nails, a manufacturer needs to plate a total zinc mass of 3.20 kg on the surface to get adequate coverage. Part C: With a power supply able to produce 125 A of current, how long must the nails stay in the electrolysis chamber to receive 9.44×106 C of charge? Express your answer in hours.
Part C Please show all of the steps Previous Answers Review I Constants 1 Periodic Correct Part with a power supply able to produce 125 A of current, how long must the nails stay in the electrolysis chamber to receive 3.25x10° C of charge Express your answer to three significant figures and include the appropriate units. View Available Hint(s) WAO ? Value Submit Part D Identify the anode and cathode when plating an ironnal with inc View Available Hints) in...
2. 6.4 KB) ELECTROLYSIS PROBLEMS 1. How many faradays are transferred in an electrolytic cell when a current of 2.0 A flows for 12 hours? (1 faraday - 96,500 C) 2. A metal object is to be gold-plated by an electrolytic procedure using aqueous AuCl; electrolyte. How much gold may be deposited in 30 min by a constant current of 10.0 A? 3. What mass of nickel may be electropiated by passing a constant current of 7.2 A through a...
Please use railroad tracks for work, thank you. 1. How many faradays are transferred in an electrolytic cell when a current of 2.0 A flows for 12 hours? (1 faraday = 96,500 C) 2. A metal object is to be gold-plated by an electrolytic procedure using aqueous AuCl3 electrolyte. How much gold may be deposited in 3.0 min by a constant current of 10.0 A? 3. What mass of nickel may be electroplated by passing a constant current of 7.2...
Need help filling in my data sheet from a lab. My professor said the pressure was 24.6 inches of Hg and that we needed to convert that to moles. Im not sure i put that in the correct spot. I included the lab protocol. Plz plz plz help me fill in the blanks and let me know if i did something wrong Im very confused haha. THANKS!! Equivalent Mass by Electrolysis If the two terminals on any source of DC...