Provide at least two reasons as to why steel alone in water with no other metal present will corrode.

Q: a) If Mg(OH)2 and H2 are in water in a covered container and a voltage is applied to produce…

A: When an electric current is passed through a solution containing Magnesium Hydroxide (Mg(OH)2) and…

Q: An electrolysis cell is set up with the cathode producing H₂ gas and with an unknown metal at the…

A: Electrolysis Electrolysis involves passing an electric current through either a molten salt or an…

Q: A constant current is passed through a solution containing Cu2+(aq) resulting in the deposition of…

A: Amount of Cu deposited at the cathode when constant current is passed through a solution containing…

Q: Write a balanced half-reaction describing the reduction of aqueous zinc cations to solid zinc.

A: A question based on stoichiometry. A half reaction is given that is to be written after balancing…

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: Why is it necessary to keep the chlorine and sodium, resulting from the electrolysis of sodium…

A:

Q: Write a balanced equation to represent the overall reaction you would expect to occur in the…

A: In the molten KCl water vapour is not present. So it have only K+ and Cl- ion.

Q: provide the correct balanced equation to represent the reaction described. Aluminium bromide…

A: Given -> Reagents are -> Aluminium bromide= AlBr3 Chlorine gas = Cl2

Q: What specific features qualify hypochlorite as a "Green" oxidant?

A: Green oxidation: The oxidation process in which O is added or H is removed from substrate leading to…

Q: A total of 1.638 F of electricity (1 F = 1 mol e) was required to electrodeposit all of the Zn and…

A:

Q: The mass of the magnesium that is plated through electrolysis is 2.7 g in 2.5 hours. What current is…

A: Given -> Weight = 2.7 gm Time (t) = 2.5 hour = 2.5 × 3600 seconds = 9000 s

Q: How many mol oxygen will be produced? Electrolysis of water with 2.0 A for 5hours

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

A: difference between ionization and electrolysis.

Q: Why is rusting occurs rapidly in moist conditions as compared to a dry environment.

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: Using the following Latimer diagram and a standard reduction potential table to answer the following…

A: Whether a reaction will take place spontaneously or not, is decide the conversion of one species 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: From each of the following pairs of substances, use data in Appendix E in the textbook to choose the…

A: A question based on electrode potential. 4 pairs of species are given that are to be distinguished…

Q: What is the process of Electrorefining and the process of Electroplating

A: The process of electrolysis is used to reduce the metals from minerals. The process is known as…

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: The following electrochemical data may be helpful in answering the question below. Use the table of…

A: Current (i) = 2.1 Ampere Weight of Cr = 0.8 gm

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

A: All metals are arranged in the metal activity series according to their reactivity. The more…

Q: Calculate the number of kilowatt-hours of electricity required to produce 1.0 x 103 kg of aluminum…

A:

Q: Commercial aluminum production is done by the electrol-ysis of a bath containing Al₂O₃ dissolved in…

A: The commercial production of aluminum is achieved by electrolysis of bath that contains Al₂O₃…

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: Define electrochemical series.

A: Electrochemical series :  Depending upon the redox potential , a series of reduction reactions are…

Q: Write the anode and cathode reactions occurring in a commonly used mercury cell. How is the overall…

A: The anode and cathode reactions occurring in a commonly used mercury cell and the overall reaction…

Q: Determine the oxidation number of O in H2O2 :

A: Oxidation Number :- Total number of electrons that an atom loose or get to form a chemical bond is…

Q: What is one species that could spontaneously reduce elemental bromine to bromide ions? Write the…

A: The species which can spontaneously reduce elemental bromine to bromide ions is the one which has…

Q: How many amps are required to produce 59.6 g of aluminum metal from a sample of molten aluminum…

A: AlF3 ----> Al3+ + 3F- Al3+ + 3e- ----> Al(s) Therefore, It requires 3 moles of electrons to…

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.