4. A metallurgist wants to gold-plate a thin sheet with the following dimensions: 1.5 in x 8.5 in x 0.0012 in. The gold plating must be 0.0020 in thick. (a) How many grams of gold (d required? 19.3 g/cm') are (b) How long will it take to plate the sheet from AuCN using a current of 7.00 A? (Assume 100% efficiency.)

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A: According to Farady's law of electrolysis we can write m =I×t×MF×νwhereI = currentt = timeM = atomic…

Q: Chromium can be electroplated from aqueous potassium dichromate, with the reduction shown below. If…

A: Given data Current (i) = 6 A Voltage (v) = 4.5 V Volume of K2Cr2O7 = 215 mL Concentration of K2Cr2O7…

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A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: How many minutes would be required to deposit 0.375g of calcium using a current of 3.93A?

A: Given,  Mass of Ca = w = 0.375 g  Current = I = 3.93 A  Time required = t = ?

Q: If a constant current of 2.0 amperes is passed through a cell containing Cr3+ for 1.0 hour, how many…

A: Mass of Cr deposited can be calculated using Faraday's first law of electrolysis: Mass deposited=…

Q: A 5.77 g of zinc is deposited at the cathode when a current of 7.1 amperes passes through an…

A: Given : Current = 7.1 A And time = 40 min = 40 X 60 = 2400 s…

Q: How many grams of chromium metal are plated out when a constant current of 8.00 A is passed through…

A: Faraday's Law: It can be defined as by saying that the amount of substance produced at each…

Q: 4. A metallurgist wants to gold-plate a thin sheet with the following dimensions: 1.5 in x 8.5 in x…

A: Given current = 7 A standard value  density of gold = 19.3 g/cm3

Q: Determine the molar mass (amu) of Metal (M) if it took 2.05 minutes for a current of 1.91 A to plate…

A:

Q: How many seconds are required to deposit 0.268 grams of iron metal from a solution that contains…

A: Given  Mass deposited (m) = 0.268 g Current (i) = 1.22 A Time (t) = ? S The equation is Fe2+ + 2e-…

Q: In an electrolysis of a solution containing Ni2+ (aq), metallic Ni(s) deposits on the cathode. Using…

A: (a) Current is the amount of charge flowing per unit time. If I is the current(in A) andt is the…

Q: A metallurgist wants to gold-plate a thin sheet with the following dimensions: 1.5in x 8.5in x…

A: first we have to find the volume,volume=length ×width×heightthen we know,density=massvolumeby…

Q: Determine the molar mass (amu) of Metal (M) if it took 1.04 minutes for a current of 1.22 A to plate…

A:

Q: How long, in hours, must a current of 5.00 A be applied to a solution of Ag+ to produce 10.5 grams…

A: From the combination of Faraday's first and second law, we have : m = ItM/Fz  Or, t = mFz/IM ...(1)…

Q: A current of 5.99×104 A is passed through an electrolysis cell containing molten CaCl2 for 20.1…

A: Answers given as follows

Q: metallurgist wants to gold-plate a thin sheet with the following dimensions: 1.5 in x 8.5 in x…

A: Dimensions of the thin sheet is: 1.5 in x 8.5 in x 0.0012 inThickness of gold plating = 0.0020 in…

Q: Co 00 salts are often sparingly soluble, but Co () salts are very, very sparingly soluble. The K of…

A:

Q: 2+ A current of 3.40 A is passed through a solution containing Cu²+ (aq) for 30.0 minutes, with…

A:

Q: A 1.00 g of metal sample took 31.05 minutes to be consumed in the anode to recharge a battery using…

A: According to Faraday's first law of electrolysis, the mass of a substance deposited on the electrode…

Q: Giorno Giovanna likes golden stuff. However, since he is currently broke, he has to settle for…

A: Gold ion is triply charged Au3+ To get reduced to metal, ions gain electrons

Q: Chromium can be electroplated from aqueous potassium dichromate, with the reduction shown below. If…

A: a) 215 ml  ofb1.25  potassium  means (1.25/1000)×215 = 0.26 mol of potassium dichromate.   From the…

Q: 3. The passage of a current of 0.750 A for 25.0 min deposited 0.369 g of copper from a Cuso,…

A: The Faraday's laws are the main concepts of electrochemistry.  The first law shows  the connection…

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A: Molar mass can be calculated as:-

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A:

Q: Determine the molar mass (amu) of Metal (M) if it took 1.29 minutes for a current of 1.48 A to plate…

A:

Q: How many seconds are required to deposit 0.270 grams of copper metal from a solution that contains…

A: Given weight of deposited copper metal from a solution(w) = 0.270 g  Current applied (I)= 0.828 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…

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A:

Q: How many grams of iron metal are plated out when a constant current of 8.50 A is passed through…

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Q: 13.72 A metallurgist wants to gold-plate a thin sheet with the following dimensions: 1.5 in x 8.5 in…

A: We have find out the answer.

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A: The discharging reaction if lead storage battery is given as:Pb (s) + PbO2 (s) + 2SO42- (aq) + 4H+→…

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A:

Q: Over a period of time, the concentration of sulfuric acid in the lead storage battery of an…

A: Given data,Initial % by mass of H2SO4=38.0 %Final % by mass of H2SO4=26.0%Volume of H2SO4=734…

Q: A metallurgist wants to chromium plate his car’s hood ornament. The ornament has a surface area of…

A: Given : surface area = 13.64 in2  And thickness = 0.0040 in

Q: Suppose that a machine part requires 400 mg of copper to provide a coating that is thick enough for…

A: Given data,Current=0.5ATime=10min=10×60s=600s

Q: 7. A current of 1000. A flows for exactly 1 hour, through a cell in which the following reaction…

A:

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

A: Given,  A current passed through the silver  is 700. mA. for 30.0 seconds the mass of pure silver…

Q: A solution of a metal ion ÷({ ) Q˘ is electrolyzed by a current of 5.00 A. After 10.0 minutes, 1.19…

A: Solution        1.a. Given that current,I=5.00A           time, t=10 minutes =10×60s…

Q: If a constant current of 7.3 amperes is passed through a cell containing Cu²+ for 1.5 hours, how…

A:

Q: 19. (a) Write a balanced equation for the reaction that occurs in a car battery when the ignition…

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Q: A metallurgist want to gold-plate a thin sheet with the dimensions 1.5in, 8.5in, 0.0012 in. The gold…

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Q: A digital watch battery draws 0.10 milliamperes of current, which is provided by a mercury battery…

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Q: How many seconds are required to deposit 0.150 grams of tin metal from a solution that contains Sn2+…

A: Mass = 0.150 g Current (i) = 0.652 A = 0.652 C/s  Time (t) = ?

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A: Q3) Given that : Dimensions of thin sheet = 1.5 in×8.5 in×0.0012 Thickness = 0.0020 in a) Initial…

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.