A solution of LiCl was electrolyzed in a Hittorf cell. After a current of 0.79 A had been passed for 2 h, the mass of LiCl in the anode compartment had decreased by 0.793 g. (a) Calculate the transport numbers of Li+ and Cl- ions. [0.317; 0.683] (b) If the limiting molar conductivity of LiCl is 115.0 S cm2 mol-1, what are the molar ionic conductivities and ionic mobilities? [36.4; 78.6; 3.77 x 10-4; 8.14 X 10-4] The answers are written inside the bracket. I would like to

Q: A metallic object to be plated with copper is placed in a solution of CuSO.. What mass of copper…

A: Given,  Current, I = 0.22 amp  Time, t = 1.5 hours               = 5400 sec  Molar mass of Cu =…

Q: If the potential of a cell is 0.51 V at 25°C when [Zn2+(aq)]=0.111M and the pressure of the hydrogen…

A:

Q: In the electrolysis of water, how long will it take to produce 155.0Lof H2 at 1.0 atm and 273 K…

A:

Q: How many grams of magnesium metal will be deposited from a solution that contains Mg2+ ions if a…

A:

Q: How long will it take to plate out 3.0 g Ni from aqueous Ni2+ with a current of 113.1 A? HOW DO WE…

A:

Q: The passage of a current of 0.750 A for 25.0min deposited 0.369 g of copper from a CuSO4 solution.…

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

A:

Q: Molten ScCl3 can be electrolyzed to form metallic Sc. For what duration should an electrolysis be…

A:

Q: Molten ScCl3 can be electrolyzed to form metallic Sc. For what duration should an electrolysis be…

A: We have to calculate the time taken.

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

A:

Q: A constant current of 0.445 A is passed through an electrolytic cell containing molten BaCl2 for…

A: The reaction is, Ba2+ + 2e- ---> Ba(s) From this reaction, we can conclude that 2 mol of…

Q: Magnesium is obtained by electrolysis of molten MgCl2. Several cells are connected in parallel by…

A: In aqueous solution, H+, H2O, Mg2+, and Cl- ions are available and on electrolysis, hydrogen gas…

Q: How long will it take to plate out 1.0 g Ni from aqueous Ni2+ with a current of 105.9 A? HOW DO WE…

A: Given: Mass of Ni to be plated out = 1.0 g. Current pass = 105.9 A.

Q: How much time (in hours) is required to plate out 25.0 g of gold metal from a solution of Au(NO3)3…

A:

Q: How long would it take to deposit 9.38 g of copper (molar mass 63.55 g/mol) at the cathode of an…

A: Faraday's law states that the amount of chemical change that is produced by passing a current to an…

Q: The element hafnium, Hf, is used in control rods for nuclear reactors and as an insulator for…

A:

Q: Brass, an alloy of copper and zinc, can be produced by si-multaneously electroplating the two metals…

A:

Q: Molten RbCI can be electrolyzed to form metallic Rb. For what duration should an electrolysis be…

A:

Q: Molten CaCl, can be electrolyzed to form metallic Ca. For what duration should an electrolysis be…

A:

Q: 4. Calculate the quantity indicated for each of the following electrolysis. a. The mass of Žn…

A: Electrolysis is the process of using electric current to carry out a chemical reaction. This…

Q: What volume of chlorine gas at standard temperature and pressure is evolved when a solution of MgCl2…

A: Provided time=1hour Molar mass of Cl2=70.906g/mol Let w gram Cl2 evolve So provided time…

Q: Molten ScCl3 can be electrolyzed to form metallic Sc. For what duration should an electrolysis be…

A:

Q: How much time would it take for 325 mg of copper solid (atomic molar mass = 63.546 g/mol) to be…

A: Two moles of electrons give one mole of copper atom. Number of electrons required is determined as…

Q: he table below gives the standard electrode potential values of some electrodes. A salt bridge is…

A: The electrochemical cells are made by connecting two electrodes of different potential. These cells…

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

A:

Q: Molten ScCl3 can be electrolyzed to form metallic Sc. For what duration should an electrolysis be…

A:

Q: How many liters of O2 at 298 K and 1.00 bar are produced in 2.75 hr in an electrolytic cell…

A: given: Pressure (P) = 1.00 bar temperature (T) = 298 K Time (t) = 2.75 hour x 3600 = 9900 sec…

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 steady current of 3 A is maintained for 10 mins in AgNO3 solution. How much Ag is deposited at the…

A: Given: Current is 3 A. Time is 10 minutes. To find: Mass of Ag on cathode

Q: An antique automobile bumper is to be chrome plated. The bumper, which is dipped into a dichromate…

A: Current passed = 21.4 A Mass of chromium to be deposited = 1.72 x 102 g Time required is to be…

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: a.) How many coulombs are required to plate a layer of chromium metal 0.25 mm thick on an auto…

A: Given: Area is 0.32 m2 Thickness is 0.25 mm Density is 7.20 g/cm3 Atomic weight of Cr is 52 g/mol.

Q: Molten ScCl3 can be electrolyzed to form metallic Sc. For what duration should an electrolysis be…

A:

Q: 18. When pH = 7, p(O,) = 100 kPa, O, + 4H" + 4e calculate the electrode potential in according to…

A: 1 bar = 100 kPa [H+] = 10-pH = 10-7 M Nernst equation: EO2/H2O = EO2/H2O° -0.05914log1PO2×H+4…

Q: Molten RbCl can be electrolyzed to form metallic Rb. For what duration should an electrolysis be…

A:

Q: How much Beryllium metal can be deposited from a solution of BeCl2 by a current of 5.0 Amperes that…

A:

Q: what mass, in g, of copper will be deposited from a solution of Cu^2+ by a current of 2.43 A in 7.52…

A:

Q: How long would it take to deposit 9.38 g of copper (molar mass 63.55 g/mol) at the cathode of an…

A: Given, m = 9.38g I= 23.2A

Q: The equilibrium constant K for the overall reaction that takes place in the cell Pt|Sn2+,…

A:

Q: How many liters of O2 at 298 K and 1.00 bar are produced in 1.25 hr in an electrolytic cell…

A: According to Faraday’s first law, the mass of the substance (m) deposited or liberated at any…

Q: Molten SCCI3 can be electrolyzed to form metallic Sc. For what duration should an electrolysis be…

A: We have to calculate the time needed for deposit of the metal.

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

A: Given: Time =25.1 min Current passed = 1.23 A Mass of V deposited on cathode = 0.326 g Molar mass of…

Q: Molten ScCl, can be electrolyzed to form metallic Sc. For what duration should an electrolysis be…

A:

Q: Molten CaCl2 can be electrolyzed to form metallic Ca. For what duration should an electrolysis be…

A:

Q: Consider a cell buffered at pH 2.00 and consists of Fe2+(aq) (0.004 M), Fe3(aq) (0.070 M) and…

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

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.