In a copper plating experiment in which copper metal is deposited from a copper(II) ion solution the system is run for 3.3 hours at a current of 17.8 A. What mass of copper is deposited? Mass
Q: 5) A certain electrochemical cell has a cell potential of +0.12 V. Which of the following is a true…
A: Electrochemical cell or galvanic cell converts chemical energy into electrical energy. In galvanic…
Q: A galvanic (voltaic) cell contains a copper cathode immersed in a copper(II) chloride solution and a…
A: At cathode reduction takes place while at anode oxidation takes place. Current (I) = 1.55 A Time…
Q: Is there a minimum standard reduction potential that the half-reaction used at the anode of this…
A: Eocathode = -1.17 V Eocell = 1.00 V
Q: Three electrochemical cells were connected in series so that the same quantity of electrical current…
A: Concept introduction: Faradays second law of electrolysis is explained as when the same quantity of…
Q: A certain half-reaction has a standard reduction potential Ed=+0.73 V. An engineer proposes using…
A: Given,The standard reduction potential: , this is the reduction potential of the anode.Also, (at…
Q: A certain half-reaction has a standard reduction potential Ered = +0.50 V. An engineer proposes…
A: The EMF of an electrochemical cell is given by: where E˚cathode is the standard reduction potential…
Q: Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive)…
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Q: what is the combination of electrodes that would generate the greatest voltage in a galvanic cell?
A: Answer: The greatest voltage occurs when the difference in the reactivity of the two metals is the…
Q: Three electrolytic cells are connected in a series. The electrolytesin the cells are aqueous…
A: The given data contains, current = 2.33 A. Mass of Cu = 1.74 g.
Q: Suppose 0.280 mol of electrons must be transported from one side of an electrochemical cell to…
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Q: A certain metal M forms a soluble nitrate salt MNO3. Suppose the left half cell of a galvanic cell…
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Q: Jsing the provided standard reduction potentials, which of the following cells is an example of a…
A: Interpretation: We have to tell which of the following is galvanic cell.
Q: A certain half-reaction has a standard reduction potential Ered =-0.96 V. An engineer proposes using…
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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: Differentiate between a galvanic cell and an electrolytic cell.
A: Galvanic Cell It converts chemical energy into electrical energy. Spontaneous redox reaction…
Q: A laboratory was assigned the job of determining the copper(II) ion concentration in thousands of…
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Q: A total of 1.638 F of electricity (1 F = 1 mol e) was required to electrodeposit all of the Zn and…
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Q: Is there a minimum standard reduction potential that the half-reaction used at the anode of this…
A: Well, we will use the given condition to calculate the reduction potential of anode. And we know…
Q: Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive)…
A: Mole is the amount of the substance that contains the same number of particles or atoms or…
Q: A certain half-reaction has a standard reduction potential Ered -0.01 V. An engineer proposes using…
A: Step 1:Galvanic cell is a type of electrochemical cell that converts chemical energy into electrical…
Q: A certain half-reaction has a standard reduction potential E=-0.44 V. An engineer proposes using thH…
A: GivenEred0(anode) = -0.44 VEcell0 ≥ 1.20 V
Q: the electromotive force of a galvanic cell constructed of a standard hydrogen electrode and a lead…
A: The electrode potential when the concentration of all the half cells involved is unity is called the…
Q: How long will an electrolytic cell containing a solution of cadmium(II) iodide need to run at a…
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Q: How long would it take
A: Farrady law of electrolysis m=Z I t
Q: A solution containing vanadium (chemical symbol V) in an unknown oxidation state was electrolyzed…
A: Given: Current = 2.96 A Time = 33.4 min Mass of V deposited at cathode = 0.784 g Molar mass of V =…
Q: an irregularly shaped metal part was made from a particular alloy was galvanized with zinc using a…
A: Given The amount of current (I) is 2.15 A The time is 2.2 hours The density of zinc is 7.410 g/cm3…
Q: [Ret A particular voltaic cell operates on the reaction Zn(s) + Cl2 (g) → Zn²+ (aq) + 2CI (ag)…
A: From the balanced reaction it is clear that, Charge transferred = 2 mol of e- Cell potential, V =…
Q: A steady current of 10 A maintained for 1 hr deposits 12.2 g of zinc at the cathode. What is the…
A: Given, I = 10 A. t = 1 hr. m = 12.2 gm.
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: Is there a minimum standard reduction potential that the half-reaction used at the anode of this…
A: An electrochemical cell that converts the chemical energy of spontaneous redox reactions into…
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A: Given data,Current=29.0ATime=69.0sReaction at cathode;Pb2++2e-→Pb(s)
Q: An electroplating solution contains vanadium (50.9415 g/mol), which is a metallic element that can…
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Q: A galvanic (voltaic) cell consists of an inert platinum electrode in a solution containing 1.0 M…
A: A galvanic (voltaic) cell consists of an inert platinum electrode in a solution containing 1.0 M…
Q: An electrochemical reaction has a standard cell potential of 1.23 V. If 1 mole of electrons are…
A: standard cell potential is E°cell= 1.23 V The value of the Faraday Constant F is 96,485 C/mol Using…
Q: A certain half-reaction has a standard reduction potential E -0.37 v. An engineer proposes using…
A: At the anode, oxidation takes place and at the cathode, reduction takes place in a galvanic cell. In…
Q: PART 2: Answer what is asked for each problem and show your soluflon. Round your answers to four…
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Q: A galvanic cell consists of an Ag(s)lAg^+(aq) half-cell and a Cu(s)lCu^2+(aq) half-cell conncected…
A: Here we are required to represent the electrochemical cell reaction in standard notation.
Q: A salt bridge between half-reactions maintains the electrical balance of a galvanic cell. This…
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Q: A piece of nickel measuring 6" x 4" is immersed in deaerated water having a pH of 8.0. The…
A: Given: Nickel measuring 6"×4" immersed in water of pH of 8.0 solubility product of Ni(OH)2 is…
Q: A galvanic cell is an electrochemical cell in which a spontaneous chemical reaction can be used to…
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Q: 2. How much time in minutes is required to plate out 21.5 g of Ag from a solution of AgNO3 with a…
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Q: The surface area of an object to be gold plated is 49.8 cm?, and the density of gold is 19.3 g/cm?.…
A: Given: Surface area of gold (A) = 49.8 cm2 Density of gold = 19.3 g/cm3…
Q: A solution containing vanadium (chemical symbol V) in an unknown oxidation state was electrolyzed…
A: According to the first law of Faraday, the mass of a metal deposited on the cathode during…
Q: An electrochemical cell is constructed by dipping a zinc rod in a solution of Zn(NO3)2(aq), dipping…
A: The equilibrium constant can be written as the ratio of concentration of products to the…
Q: An unknown metal M is electrolyzed. It took 95.5 seconds for a current of 1.60 amp (A) to plate out…
A: Time taken t = 95.5 s Current I = 1.60 A Mass of metal deposited m = 0.175 g We need to find molar…
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- Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. In essence the metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution. Suppose a current of 0.540 A is passed through an electroplating cell with an aqueous solution of AgNO3 in the cathode compartment for 56.0 seconds. Calculate the mass of pure silver deposited on a metal object made into the cathode of the cell. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. 0 10 0.0 X 3 μ 010 :5Q. A current 6.0 amperes is passed for 10 hours between copper electrodes in 800 ml of copper nitrate solution (4M). Calculate the molarity of the solution at the end of electrolysis.A certain half-reaction has a standard reduction potential E=-0.22 V. An engineer proposes using this half-reaction at the cathode of a red galvanic cell that must provide at least 0.90 V of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half-reaction to happen at the cathode of the cell. O-0 Is there a minimum standard reduction potential that the half-reaction used at O yes, there is a minimum. Ov %3D red the anode of this cell can have? If so, check the "yes" box and calculate the minimum. Round your answer to 2 decimal places. If there is no lower Iimit, check the "no" box. no minimum ? Is there a maximum standard reduction O yes, there is a maximum. = Dv potential that the half-reaction used at red the anode of this cell can have? If so, check the "yes" box and calculate the maximum. Round your answer to 2 decimal places. If there is no upper limit, check the "no" box. no maximum By using the…
- 6. Zinc (Zn) can be purified by the electrolysis of aqueous zinc sulfate. Suppose an electrolytic cell is constructed with a zinc anode and a platinum cathode, and contains 0.050 M solution of ZNSO4 solution. How long will it take to produce 4.0 g of zinc, if a constant current of 1.85 A is passed through the electrolytic cell? The cathode reaction is: Zn2 (aq) + 2e- → Zn(s)A certain half-reaction has a standard reduction potential Eed=+0.45 V. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least 1.40 V of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half-reaction to happen at the anode of the cell. olo Is there a minimum standard reduction potential that the half-reaction used at the cathode of this cell can have? yes, there is a minimum. E red Ov Ar If so, check the "yes" box and calculate the minimum. Round your answer to 2 decimal places. If there is no lower limit, check the "no" box. no minimum Is there a maximum standard reduction potential that the half-reaction used at the cathode of this cell can have? E = Ov yes, there is a maximum. red If so, check the "yes" box and calculate the maximum. Round your answer to 2 decimal places. If there is no upper limit, check the "no" box. no maximumElectroplating is a way to coat a complex metal object with a very thin (and hence inexpensive) layer of a precious metal, such as silver or gold. In essence the metal object is made the cathode of an electrolytic cell in which the precious metal cations are dissolved in aqueous solution. Suppose a current of 0.320 A is passed through an electroplating cell with an aqueous solution of AgNO3 in the cathode compartment for 10.0 seconds. Calculate the mass of pure silver deposited on a metal object made into the cathode of the cell. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. ロ・ロ X μ olo S
- A solution containing vanadium (chemical symbol V) in an unknown oxidation state was electrolyzed with a current of 1.46 A for 23.1 min. It was found that 0.534 g of V was deposited on the cathode. What was the original oxidation state of the vanadium ion? The original oxidation state of the vanadium ion =A galvanic (voltaic) cell consists of an inert platinum clectrode in a solution containing 1.0 M tin(IV) ion and 1.0M tin(II) ion, and another inert platinum clectrode in a solution containing 1.0 M iron(III) ion and 1.0M iron(II) ion, connected by a salt bridge. Calculate the standard potential for this cell at 25 °C. Standard reduction potentials can be found in the standard reduction potentials table. E: cell VA certain half-reaction has a standard reduction potential --0.64 v. An engineer proposes using this half-reaction at the anode of a galvanic cell that must provide at least o.90 v of electrical power. The cell will operate under standard conditions. Note for advanced students: assume the engineer requires this half- reaction to happen at the anode of the cell. D-0 Is there a minimum standard reduction potential that the half-reaction used at the cathode of this cell can have? E- Ov yes, there is a minimum. If so, check the "yes" box and calculate the minimum. Round your answer to 2 decimal places. If there is no lower limit, check the "no" box. no minimum Is there a maximum standard reduction potential that the half-reaction used at the cathode of this cell can have? O yes, there is a maximum. E- Ov If so, check the "yes" box and calculate the maximum. Round your answer to 2 decimal places. If there is no upper limit, check the "no" box. O no maximum By using the information in the…
- A certain metal M forms a soluble nitrate salt MNO33 . Suppose the left half cell of a galvanic cell apparatus is filled with a 5.00M solution of MNO33 and the right half cell with a 25.0mM solution of the same substance. Electrodes made of M are dipped into both solutions and a voltmeter is connected between them. The temperature of the apparatus is held constant at 35.0°C. What voltage will the voltmeter show? Assume its positive lead is connected to the positive electrode.Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits.Explain how a salt bridge can maintain electrical neutrality within the internal circuit of the galvanic cell.The standard reduction potentials in volts for Pb2+ and Ag+ are -0.13 V and +0.80V respectively. Calculate the EMF in volts for a cell in which the overall reaction is: Pb(s) + 2Ag+(aq) → Pb2+(aq) + 2Ag(s). a. 1.73 V b. 0.67 V c. 0.93 V d. 1.47 V