Purification of chromium can be achieved by electrorefining chromium from an impure chromium anode onto a pure chromium cathode in an electrolytic cell. How many hours will it take to plate 10.0 kg of chromium onto the cathode if the current passed through the cell is held constant at 45.0 A? Assume the chromium in the electrolytic solution is present as Cr3 +.

Q: Purification of copper can be achieved by electrorefining copper from an impure copper anode onto a…

A:

Q: Purification of copper can be achieved by electrorefining copper from an impure copper anode onto a…

A: Current passed = 40 amp Mass of Copper to be deposited = 18.5 g Number of moles of Cu deposited =…

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

A:

Q: hours will it take to plate

A:

Q: How many hours does it take to form 15.0 L of O, measured at 750 torr and 30°C from water by passing…

A:

Q: NO3 + H* + Zn → Zn²+ + NO2 + H2O

A: Given skeletal equation is: NO3-+H+ +Zn →Zn2++NO2 +H2O Calculate its standard cell potential(Eo) and…

Q: In the commercial production of sodium metal by electrolysis, the cell operates at 7.0 V and a…

A: Given: Potential=7.0V current=25×103A Time=1h=3600s To find: The mass of metallic sodium produced in…

Q: Purification of copper can be achieved by electrorefining copper from an impure copper anode onto a…

A: Answer :- 337.7 h The time take to plate 14.0 kg of Cu onto the cathode when 35.0 A current passed…

Q: Manganese metal can be produced industrially by electrolysis of MnO2. How many hours would it take…

A: The compound of manganese electrolysed is MnO2 having Mn4+ ion. Hence the electrolysis reaction to…

Q: What mass of chromium could be deposited by electrolysis of an aqueous solution of Cr2(SO4)3 for 143…

A:

Q: Purification of chromium can be achieved by electrorefining chromium from an impure chromium anode…

A:

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: Copper can be electroplated at the cathode of an electrolysis cell by the half-reaction:…

A:

Q: Copper is plated onto the cathode of an electrolytic cell containing CuCl2(aq). How long does it…

A:

Q: Balance the following reactions.  Calculate the cell potential and the Gibbs free energy of these…

A: 1. Cl2  +  Br- -> Cl-   +    Br2 For the above reaction, At anode :      2Br-→Br2  +  2e-…

Q: impure

A: According to this law,  mass diposite on cathode is direactly proportion to the current.  So,…

Q: Given an electrochemical cell containing Mg(s) and 0.10 M Mg2+ in one cell compartment and Fe(s) and…

A: All the necessary calculations have been done in the following step.

Q: Purification of chromium can be achieved by electrorefining chromium from an impure chromium anode…

A: Given: mass of chromium=10.5 kg, current= 39. amp. To find: Required time for electrolysis of…

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

A:

Q: An aqueous solution of a platinum salt is electrolyzed for 1.00 hour using a current of 1.50 A to…

A: According to Faraday's law when a solution of an element is electrolysed then it will deposited.…

Q: Purification of nickel can be achieved by electrorefining nickel from an impure nickel anode onto a…

A: Electrorefining is a process in which materials, usually metals, are purified by means of an…

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: Purification of nickel can be achieved by electrorefining nickel from an impure nickel anode onto a…

A: This is a problem of electrochemistry.It is basically a study of the chemical processes that cause…

Q: Chlorine, Cl2, is produced commercially by the electrolysis of aqueous sodium chloride. The anode…

A: Since in the above reaction we can see that 1 mole of Cl2 is produced with 2 moles of electrons…

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

A: The mass of zinc can be calculated by using Faraday's law of electrolysis.

Q: Electrolysis of a solution of Zn(NO3)2 (aq) to give zinc metal is carried out using a current of…

A: The expression for the mass of metal deposited is given as:

Q: The electrolysis of magnesium chloride can be used to produce elemental magnesium. MgCl2(1) → Mg(1)…

A: Current Strength = 4.50 A time = 7 min = 7 × 60 sec                               (As, 1 min = 60…

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: Purification of chromium can be achieved by electrorefining chromium from an impure chromium anode…

A: In the process, the Cr3+ is converting to Cr. Hence the reaction taking place can be written as Cr3+…

Q: Write the cell notation for an electrochemical cell consisting of an anode where Fe2+ (aq) is…

A:

Q: Identify the reaction at the anode, reaction at the cathode, the overall reaction, and the…

A:

Q: Calculate the cell potential for the galvanic cell in which the reaction Al(s) + Au+(aq) = Al³*(aq)…

A: In this question firs determine standard cell potential then apply Nerst equation.

Q: How many hours does it take to form 15.0 L of O, measured at 750 torr and 30°C from water by passing…

A: For this problem we can incorporate Faraday's Laws of Electrolysis with the Ideal Gas Law to have…

Q: Enter your answer in the provided box. The MnO, used in alkaline batteries can be produced by an…

A: Please find the answer attached here as handwritten note.

Q: Calculate the time required to precipitate 200 milligrams of copper by electrolysis of an acidic…

A: By 1F of charge 1 equivalent of metal can be deposited .

Q: Purification of chromium can be achieved by electrorefining chromium from an impure chromium anode…

A: It will take approximately 737.43 hours

Q: Calculate the standard cell potential produced by a galvanic cell consisting of a nickel electrode…

A:

Q: Write the cell notation for an electrochemical cell consisting of an anode where Cr (s) is oxidized…

A: In an electrochemical sell there is cathode and anode and the reaction takes place simultaneously .

Q: For the reduction of MnO4− to Mn2+ in aqueous acid, ε⁰ = 1.51 v.For the reduction of I2 to 2I− in…

A: The question is based on the concept of electrochemistry. it involves the formation of a galvanic…

Q: Balance the following reaction. Calculate the cell potential and Gibbs free energy of this reaction…

A: We have given that    the balanced chemical equation                    Cl2  + 2Br-  → Br2  + 2Cl-…

Q: The electrolysis of an aqueous solution of potassium iodide, KI, results in the formation of…

A: Electrolysis: It is a chemical reaction that occurs when an electric current is conducted through a…

Q: What is the electrical current, in Amperes, that must be applied if 6.50 g Ag is deposited at the…

A: Answer:- This question is answered by using the simple concept of electrolysis which involves the…

Q: In the electrolysis of molten MgCl 2, what mass of Mg metal is deposited by a current of 16 amperes…

A: Electrolysis is the process of conversion of electrical energy to chemical energy. This reaction…

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

A:

Q: Write the cell notation for an electrochemical cell consisting of an anode where Cr (s) is oxidized…

A: Cell notation is a way to represent an electrochemical cell with anode and cathodes.

Q: How many hours does it take to form 15.0 L of O, measured at 750 torr and 30°C from water 2 by…

A:

Q: Using Faraday constant, how many grams of copper will attach to the cathode of an electrolysis cell…

A: Faraday first law states that the amount of material deposited at cathode from electrolytic solution…

Q: What mass of Molybdenum (Mo) could be deposited by electrolysis of an aqueous solution of Mo2(SO4)3…

A: Molar mass of Mo=95.95g/mol Provided current (i)=12.0A Provided time=125minutes Or,…

Q: Purification of nickel can be achieved by electrorefining nickel from an impure nickel anode onto a…

A: GIVEN:  Mass of nickel=12.5KgCurrent passed through the cell=32.5 A. To Solve: calculate time in…

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

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.