4. Compare the product formed at the cathode in the electrolysis of copper(II) bromide solution versus that obtained in the electrolysis of aqueous potassium iodide or sodium chloride. Explain, based on the reactivity of the metals.

Q: Is there a name for the electrolysis cell used to prepare aluminum? What chemical reactions are…

A: Aluminium is one of the most abundant metal found on earth. It is extracted from the ore called…

Q: What does the Ellingham diagram show? Name some metals that can and cannot be purified by reducing…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 1. In an electrolysis cell similar to the one employed in this experiment, a student observed that…

A: Given volume of hydrogen gas is 94.50 mL  Given barometric pressure is 740mmHg and vapour pressure…

Q: Although aluminium is above hydrogen in the electrochemical series, it is stable in air and water.…

A: The series in which elements are arranged in increasing order of reduction potential is known as…

Q: Magnesium metal can be produced by the electrolysis of molten magnesium chloride. What mass (in…

A: Current (I)= 9.8 A Time=3.7 h=3.7×60×60 s

Q: the half-reactions, overall reaction, and cell potential involved.

A: Redox reaction are those in which both oxidation and reduction reaction takes place simultaneously.

Q: which of the following is true? reduction occurs at the cathode and oxidation at the cathode,…

A: Statement- Reduction occurs at the cathode and oxidation at the cathode. False Statement- oxidation…

Q: What are the products obtained in the electrolysis of a molten mixture of KIKI and KBr

A:

Q: Aluminum metal can be made from aluminum ions by electrolysis. What is the half-reaction at the…

A:

Q: Aluminum is produced from the electrolysis of aluminum oxide dissolved in molten cryolite.…

A:

Q: Write a balanced equation for the decomposition of water by electrolysis.

A: Electrolysis is the process in which an electric current gets passed through a substance called an…

Q: A steady current was passed through molten CoSO. until 2.35 g of metallic cobalt was produced.…

A:

Q: 1.What is the difference between ionization and electrolysis? 2.Why is electrolytically refined…

A: difference between ionization and electrolysis.

Q: Electrolysis of molten NaCl; concentrated NaCl solution and aqueous NaCl solution was done at the…

A: 1 case: Molten sodium chloride on electrolysis gives sodium metal and chlorine gas. sodium ion takes…

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: Write the balanced chemical equation for the overall redox reaction in the electrolysis of aqueous…

A:

Q: When the cell reaction for the electrolysis of ScBr3 is balanced, with the smallest whole number…

A:

Q: In hydrometallurgical zinc production, refining processes are carried out in solution before…

A: Hydrometallurgy is carried out in solution. It is a process in which aqueous solutions are used to…

Q: Explain the process involve in Electrolysis.

A: There are some non-sponteneous redox reaction, that naturally does not occurr. To carry out those…

Q: mix 0.5 liters of 0.2 M Cu (OH) 2 solution with 0.625 liters of 0.4 M nitric acid solution. a)…

A: This can be solved by balancing that equation as well as applying stp conditions  which is explained…

Q: Label the anode and cathode, and describe the direction of the electron flow.

A: a) The given diagram is the galvanic cell diagram, which is a silver concentrated cell. The cell…

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: Sample Data Table (Student data will vary.) Observations Electrolyte (Salt Solution) Anode Cathode…

A: The standard reduction potential of Na+ , K+ , H+ and Cu2+ are -2.71 V, 2.93 V, 0 V and 0.34 V. This…

Q: A copper penny can be dissolved in nitric acid but not in hydrochloric acid. Using reduction…

A: We know that, Cu(s)→Cu+2(aq)+2e-                                                Eo=-0.34…

Q: Determining volume of a gas by electrolysis. What volume of chlorine gas at standard temperature and…

A: It is given that MgCl2 is electrolysed and a current of 12.4 A is passed for 1h.

Q: Macmillan Learning A current of 3.11 A is passed through a Sn(NO3)2 solution for 1.10 h. How much…

A:

Q: How long (in minutes) would it take to deposit 0.67 g of copper from a solution containing Cu? using…

A: Faraday law of electrolysis      M = AnF×I×T            where,        M = mass of metal deposited…

Q: 4.) What mass of silver can be plated onto an object in 45 minutes at 9.0 A of current?

A:

Q: 2) The alkali metals Li and Na are commercially produced by A) chemical reduction of their molten…

A: Answer:-This question is answered by using the simple concept of electrolysis.

Q: >Why does the electrolysis of an aqueous sodium chloride solution produce hydrogen gas at the…

A: In electrolysis of aqueous solution of NaCl, the solution would simply result in the electrolysis of…

Q: A major source of sodium metal is the electrolysis of molten sodium chloride. What magnitude of…

A: The  current is required to produce 1.0 kg of sodium metal in one hour is calculated as,

Q: Electrolysis of an alkaline earth metal chloride using a current of 5.00 A for 748 s deposits 0.471…

A: Given that , Current= 5A Time taken= 748 second Weight of metal diposited = 0.471 gram

Q: In the Downs process, molten sodium chloride is electrolyzed to produce sodium. A valuable byproduct…

A: Sodium metal can be extracted by Down’s process. In this process the sodium chloride is electrolyzed…

Q: When does a SHE function as a cathode? As an anode?

A: Every electrochemical cell has a cathode and an anode. Each electrochemical cell has an oxidation…

Q: A 9.00 x 10-2 mL sample of 0.200 M Mglz was electrolyzed. As a result, hydrogen gas was generated at…

A: Given pressure of Hydrogen = 779 mm Hg 1 Atm = 760 mm Hg Temperature = 26℃ = (273 + 26)K = 299K…

Q: The decomposition of NaCl(l) into Na(l) and Cl2(g) is thermodynamically unfavorable. The…

A: In this question, we will Identify which statement is flaw in electrolytic cell representation.  How…

Q: Identify those elements that can be prepared by electrolysisof their aqueous salts: strontium, gold,…

A: It is given that four elements strontium, gold, tin and chlorine are present, and which can be…

Q: The molar mass of a metal (M) is 50.9 g/mol; it forms a chlorideof unknown composition. Electrolysis…

A: Molar mass = 50.9 g/mol I = 6.42 A t = 23.6 mins = 1416 s Weight of the substance deposited = 1.20g…

Science behind corrosion-test

Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.

Corrosion

Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.