at the cathode during discharge?

Q: An iron object is plated with a coating of cobalt to protectagainst corrosion. Does the cobalt…

A: No the cobalt cannot protect iron by cathodic protection.

Q: In the process of electroplating, anions are reduced at the anode, and deposited on the cathode as a…

A: Given statement is in the process of electroplating, anions are reduced at the anode, and deposited…

Q: pestion 18 of 18 A current of 4.12 A is passed through a Ni(NO,), solution. How long, in hours,…

A:

Q: Write a balanced equation for the half-reaction that takes place at the cathade. Write a balanced…

A: The expression of E0cell is shown below: E0cell = E0cathode – E0anode

Q: What half-reaction occurs at the cathode during the electrolysis of molten potassium bromide?

A: During the electrolysis process molten potassium bromide KBr broken into K+ and Br- ion.  K+ ion…

Q: Show the typical electrochemical cell in the shorthand schematics used to measure the activity of H*…

A: Electrochemistry is the branch of chemistry which studies the change of chemical energy into…

Q: - All of the following factors affecting on the type and mass of formed Substances from electrolysis…

A:

Q: Write the balanced overall cell reaction. Is the reaction spontaneous or not?

A:

Q: During the curing of a battery plate, which of the following takes place? A. The active material…

A:

Q: what electrochemical reaction uses in Remote Battery carbon battery and why the electrochemical…

A: Given in following question write the electrochemical reaction use in remote battery carbon battery…

Q: molten KBr is electrolyzed, K is produced at the is produced at the anode. e

A: In electrolysis,  Oxidation takes place at anode and reduction takes place at cathode.

Q: How many Faraday is needed to deposit 1.6 g of Calcium (Ca) from CaCl2 solution using electrolysis…

A:

Q: A voltaic cell is constructed in which the  anode is a H2|H+ half cell and the cathodeis a Hg|Hg2+…

A: Standard electrode potential for the following reactions:                                     2H+…

Q: electrode will be oxidized?.

A: According to the question an Mg/Mg2+ concentration cell is constructed in which both electrodes are…

Q: How many Faraday is needed to deposit 1.9 g of Aluminium (Al) from AICI3 solution using electrolysis…

A: We have , AlCl3------>Al3+ +3Cl- And, Al3+ + 3e------> Al  which means that 3 mole e- is…

Q: Write a balanced equation for the half-reaction that takes place at the cathode. Write a balanced…

A:

Q: Water is electrolysed at a current of 3 amps for 4 hours. He and O gases are liberated at the…

A: Given:  Electrolysis of H2O, H2 and O2 gases liberated at cathode and anode. Current I = 3amp Time =…

Q: How many Faraday is needed to deposit 2.1 g of Calcium (Ca) from CaCl, solution using electrolysis…

A:

Q: How many Faraday is needed to deposit 5 moles of Aluminium (Al) from AICI3 solution using…

A: Given that, Moles of Al = 5 mol No. Of Faraday = ?

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: Which of the information given about factors affecting electrode reaction rate and current is…

A:

Q: A 1 M solution of Cu1NO322 is placed in a beaker with astrip of Cu metal. A 1 M solution of SnSO4 is…

A: (a) E°red of the reaction: - Cu2+ (aq) + 2e- → Cu(s)     E0red = 0.337V Sn2+ (aq) +2e- → Sn(s)…

Q: In the everyday batteries used for flashlights, toys, etc., nosalt bridge is evident. What is used…

A: The alkaline battery is used for toys and flashlight. In this batter, metal zinc is used as anode…

Q: What is the oxidation state of lead in the cathode of this battery?

A: Lead storage battery: It is used in invertors and automobiles. The battery is designed as it consist…

Q: What happens to the mass of deposited Cu when the electrolysis time is increased?

A: Electrochemistry is the branch of chemistry that deals with the movement of the electrons. It is…

Q: How many Faraday is needed to deposit 1.5 g of Calcium (Ca) from CaCl2 solution using electrolysis…

A: Recall the data, Mass of Ca=1.5 g molar mass of Ca=40 g mol-1 number of Faraday=?

Q: In the electrolysis of molten KCl, which product forms at the cathode?

A: On electrolysis of molten KCl  KCl dissociates into K+ and Cl- ions  we know anode is connected to…

Q: During the redox balancing process, what step is taken to en-sure that e⁻ loss equals e⁻ gain?

A: Redox reactions are those in which both oxidation and reduction take place simultaneously.

Q: 3. 4. 6. 8. 6. 10 11 12 13 Write a balanced half-reaction for the reduction of gaseous oxygen (O,)…

A: Reduction involves gain of electrons. When oxygen gas is reduced in acidic conditions, it does so by…

Q: How many Faraday is needed to deposit 0.7 g of Calcium (Ca) from CaCl2 solution using electrolysis…

A:

Q: What is sacrificial anode and mention it role in the prevention of corrosion

A: Interpretation: What is sacrificial anode is to be determined and its role in the prevention of…

Q: In the electrolytic refining of a metal M, what would you take as the anode, thecathode and the…

A:

Q: A gas is observed at the cathode and the pH also went up when a solution of KBr is electrolyzed.…

A: Given: At the cathode, gas is being formed. And the pH of the solution increased when a solution of…

Q: Could sodium be used as a sacrificial anode to protect theiron hull of a ship?

A:

Q: In the electrolysis of molten NaBr,(a) What product forms at the anode?(b) What product forms at the…

A: Introduction- Electrolysis is a process in which the electric current is used to split the…

Q: Anode is the electrode connected to the negative terminal of the current/voltage source and cathode…

A: The cathode is connected to the negative terminal of the voltage source and anode to the positive…

Q: What reaction takes place in (a) an electrode made of zinc and (b) an electrode made of copper?…

A: Answer:- This question is answered by using the simple concept of electrochemical cell in which…

Q: A glass electrode is universally used because it is simple to operate and it is not easily poisoned.

A: Glass electrode is a type of electrode, i.e. made up off dopped glass membrane and coated the silver…

Q: Which of the following statements describe the reference electrode? O electrode allows for the…

A: Reference electrode is the electrode which is used to measure the potential of other half cell…

Q: electrode where oxidation occurs anode cathode salt bridge species undergoing oxidation oxidizing…

A:

Q: How many Faraday is needed to deposit 5 moles of Magnesium (Mg) from MgF2 solution using…

A:

Q: What is the general layout/structures of the anode and cathode?

A: Given,  the general layout/structures of the anode and cathode

Q: Determine the products in the electrolysis of molten Nil2(ac) and how much voltage is required

A: To write the electrolysis reaction of NiI2(s) and to calculate the voltage required.

Q: a. Describe how the following fuel cell works. b. Write the redox reactions at the anode and…

A:

Q: 2 a) Briefly explain the galvanizing process with a neat diagram. b) Write the applications of…

A: Galvanization is the process of applying a protective layer of the zinc metal. It is very common…

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.