2+ If the anode of a galvanic cell is composed of Fe/Fc" (, which of the following should be used as the cathode to produce the smallest voltage? b) Cr" (q/Crp d) Mg (/Mg ro a) Cd aq) /Cd c) Cu" (a/Cu(m) (s)

Q: A solution containing vanadium (chemical symbol V) in an unknown oxidation state was electrolyzed…

A:

Q: A current of 10.0 amperes flows for 2.00 hours through an electrolytic cell containing a molten salt…

A: According to the reaction given, we have  Xn+ (aq) + ne-→X (s) t=2 hours=7200 sec (since 1 hr =3600…

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…

Q: 6. If the cell potential in the previous problem (5) is 0.485 V, what is the [CI] in the cathode…

A:

Q: A current of 3.7A is passed for 6h between nickel electrodes in 0.5L of a 2M solution of Ni(NO3)2.…

A: We have to find the molarity

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

A: The chemical reaction corresponding to electroplating of Chromium is given as:Cr2O72- (aq) + 14 H+…

Q: (b) A constant current was passed through a solution of AuCl; between gold (Au) electrodes. After a…

A: Given, Mass of gold deposited = 2.628g Time = 20min = 1200 second

Q: A galvanic cell is prepared according to the redox reaction shown below. A voltmeter connected to…

A: The question is based on the concept of electrochemistry.   the electrode which has higher reduction…

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

A: According to the Faraday's electrolysis law -  W = Zit  W is the weight in grams.  Z = E/96500 where…

Q: ate the cen of galvanic cell which consist of two half rea shown below

A:

Q: The free energy change for the following reaction at 25 °C, when [Cr³+] = 7.70x10-3 M and [Cu2+] =…

A:

Q: 6) Chromium can be electroplated from aqueous potassium dichromate, with the reduction shown below.…

A:

Q: A galvanic cell is at equilibrium when Ecell is within the range ±(0.05916/n) of E° Ecell is…

A: The correct option has to be chosen.

Q: 6) Chromium can be electroplated from aqueous potassium dichromate, with the reduction shown below.…

A: A redox reaction takes place in an electrolytic cell where the electrical energy is fed into the…

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

A:

Q: A galvanic cell was prepared by immersing an anode and a cathode of the same material (of A type) in…

A:

Q: A Cr3+1aq2 solution is electrolyzed, using a current of 7.60 A. What mass of Cr(s) is plated out…

A: Charge flowing per unit time is known as current which may be expressed mathematically as :…

Q: Identify the reaction that occurs at the anode and the cathode. anode: cathode: Determine the…

A: GivenElectrolysis of Molten CrBr3Ions Molten CrBr3 have 1. Cr3+2.  Br-

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: In galvanic cells, the following must be followed to have a spontaneous reaction between Mg and Fe,…

A:

Q: Crude copper containing Fe and Ag as contaminations was subjected toelectro refining by using a…

A: To find: the percentage of copper, iron and silver in crude copper.

Q: 2. Calculate the potential of the following two half-cells that are connected by a salt bridge:

A:

Q: A certain metal M forms a soluble nitrate salt MNO, Suppose the left half cell of a galvanic cell…

A:

Q: A galvanic cell consists of Mg anode in a 1.0 M Mg(NO,), and Al cathode in a 1.0 M AI(NO,), solution…

A: The electrical energy can be calculated by using Nerst Equation

Q: Two electrolytic cells are connected in series. The 1st cell contains copper sulfate solution while…

A: Given the current supplied to both the electrodes, I = 0.5 A Given the Ag electrode has 0.2 g lesser…

Q: 2) How long, in minutes, will it take to plate out 25.0g of Au from a AuCl3 solution if the current…

A:

Q: 8. A solution containing a metal ion (M2+ (aq)) is electrolyzed by a current of 7.8 A. After 15.5…

A: Given:Current (c)= 7.8 A time (t)= 15.5 min=15.5×60=930 s Mass of the metal-plated out =1.19 g To…

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

A: Current = 5 A Voltage = 4.5 V Time = ? Volume = 215 mL = 0.215 L Molarity = 1.19 M

Q: A cell is constructed by coupling a Zinc electrode dipped in0.5M ZnSO4 and a Nickel electrode dipped…

A: Given concentration of Zn2+ is 0.5M.          concentration of Ni+2 is 0.05M Standard reduction…

Q: If the Standard Potential cell for the following AgI/Ag and I/I was -0.152vand o. Suv Pespectively.…

A:

Q: A galvanic cell is made of Tin anode in 1.0 M SnCI, and Iron cathode in a 1.0 M FeCl, solution with…

A: We are given Sn-Fe galvanic cell and we have to calculate  a. Electrical energy b. Free-energy…

Q: A salt of each of the ions in Table is dissolvedin water. A Pt electrode is immersed in each…

A: Electrolysis is the process in which the decomposition of the metal occurs when the liquid solution…

Q: an acidic soltion containing BiO+ is electrolyzes using a current of 0.500A what weight of bi metal…

A: Current, I = Q/t Q = charge (in C) t = time (in seconds)

Q: HTERACTIVE EXAMPLE Electroplating How long will it take to plate out 1.0 g Ni from aqueous Ni2+ with…

A: Given :  Mass of Ni = 1.0 g  Current (I) = 119.9 A  Molar mass of Nickel = 58.7 gm/mol

Q: The button case is usually plated from the solution of AgNO3. If a current of 5.60 A is maintained…

A: The given data contains, Current  = 5.60 A Time = 1045 seconds

Q: (a) A Cr* (aq) solution is electrolyzed, using a current of 7.60 A. What mass of Cr(s) is plated out…

A:

Q: How long will it take in hours to create 1.026 grams of Cr at the cathode of an electrolytic cell if…

A:

Q: If the Standard Potential cell for the following AgI/Ag and I/I Was -0.152vand o, suv respectillery.…

A:

Q: A solution containing a metal ion (M2+ (aq)) is electrolyzed by a current of 7.8 A. After 15.5…

A: The amount of substance that undergoes a chemical reaction at any electrode during electrolysis is…

Q: A potential difference of 2.0 V is impressed across a pairof inert electrodes (e.g., platinum) that…

A: Electrolysis It is the process of decomposition of an electrolyte by passing electricity through…

Q: 6) Chromium can be electroplated from aqueous potassium dichromate, with the reduction shown below.…

A:

Q: To improve conductivity in the electroplating of automo-bile bumpers, a thin coating of copper…

A: a) The mass of copper has to be determined, The half-reaction can be written as, Cu2+(aq)+2e-→Cu(s)…

Q: A Galvanic cell is consisting of standard concentrations: Cu|Cu2+||Ag+ |Ag, is connected to a small…

A: From the Galvanic cell diagram, the Copper metal is being oxidised to Cu2+ ion Hence the oxidation…

Q: A cell is composed of a pure copper and pure lead electrode immersed in solution of their bivalent…

A: The question is based on the concept of electrochemistry. it talks of a galvanic cell in which…

Q: Indicate which of the following metals could provide cathodic protec- tion to iron, Al, Cu, Ni, Zn.…

A: Cathodic protection is a technique based on the reduction potential of the metals and used to…

Q: If the Standard Potential cell for the following AgI /Ag and I/I Was -0.152vand o, suv respectively.…

A:

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.