Example 2 Iron is corroding in seawater at a current density of 1.69 x 10* A/cm?. Determine corrosion rate in (a) mdd (milligrams per decimeter day) (b) ipy (inches per year) mdd

Q: (a) What is salt-bridge? Why is it used? Explain its working principle giving an example. (b) Define…

A: A salt bridge is a laboratory device used to complete circuitry of electrochemical cell by providing…

Q: what are methods for prevention from corrosion ?

A: Deterioration of materials in form of losing its lustre or formation of a blackish brown layer on…

Q: :Requirements for electrochemical cells are .A Inert electrodes .B graphite electrodes .C Both .D

A: An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit .…

Q: For the following pairs of alloys that are coupled in seawater, predict the possibility of…

A: Dear student I have given answer to your question in the image format.

Q: Four different bridges use steel as the principal load-bearing component. With all other things…

A: Metals corroded at much faster rate in winter season when pollution levels are at their highest.…

Q: 5. An analyst at Procter & Gamble quality control department received a sample of toothpaste to…

A: a) To determine the linear range in the graph.

Q: Write equation that can be used to calculate the standard potential for a Redox couple from the…

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Q: Corrosion of metals is not always harmful. Illustrate.

A: Corrosion is the slow eating up of a metal. it is a harmful process.

Q: 3 Briefly explain why, for a small anode-to cathode area ratic the corrosion rate will be higher…

A: Explain why, for a small anode to cathode area ratio ,the corrosion rate will be higher than for a…

Q: What is the main differences between the corrosion types

A: Corrosion is a natural process that converts a refined metal into a more chemically stable form such…

Q: a) Electrolytes are basically +. During electrolysis, move to the cathode and to the anode.When…

A: (a) Electrolytes are basically conductors of electricity. During electrolysis, cations move to the…

Q: Nilufar’s grandmother gifted her Gold Necklace to her in her wedding. The gold necklace was 40 years…

A: Corrosion: It is the phenomenon in which the metal reacts with atmospheric air to form metal oxide.…

Q: Ques – 2 From given four test tubes a. b. c and d, nail manufacturing company is testing the…

A: Corrosion is a chemical process in which a metal reacts with the atmospheric oxygen to give the…

Q: Q4: For a metallic coating of type 430 stainless steel on mild steel, what happens if an…

A: The metallic coating on the steel will prevent the corrosion of the metal. The water will not be…

Q: Write a brief summary on "Green Inhibitors for corrosion of metals"

A: A brief summary on "Green Inhibitors for corrosion of metals", it is to be written. The corrosion is…

Q: Which of the following is wrong for erosive corrosion? A: Occurs when corrosive solutions flow…

A:

Q: a solution containing a metal ion is electrocyzed by a current of 5 A. after 10 minutes, 1.19g of…

A: According to the first law of electrolysis mass of an element liberated during electrolysis is…

Q: What is the Corrosion of Iron?

A: To explain the corrosion of Iron.

Q: Example 3 A sample of zinc anode corrodes uniformly with a current density of 4.27 x 107 A/cm² in an…

A:

Q: Which of the corrosion types given belowis different from the other corrosion mechanism? a)Pitting…

A: Cavitation corrosion is different from other corrosions. This is because cavitation corrosion…

Q: Dry corrosion is very common in metals. Stainless steel has very high resistance to the dry…

A: Corrosion is a process in which a metal changes to oxides,  hydroxide and sulphide when come in…

Q: Bars of iron are put into each of the three beakers as shown here. In which beaker—A, B, or C—would…

A: pH is the power of hydronium ion. It lies in the range of 0-14. pH is used to identify the nature of…

Q: (b) Figure 1 shows four metal plates placed in contact with one another in order. Two metal plates…

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Q: Corrosion rate = 38.6 10 -6 A/cm 2, of oxygen Conv. The result to mm/year

A: Corrosion rate is defined as the speed by which any metal deteriorates in a specific environment. Or…

Q: Which is correct for a redox reaction where the standard electrode potential is negative? AGe=-nFEe…

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Q: 4) When coupling copper with Zink in natural water, the corrosion rate of Zinc increases. Why?

A: Oxidative destruction of metal is called corrosion.

Q: Four different bridges use steel as the principal load-bearing component. With all other things…

A: Given: Four different bridges use steel as the principal load-bearing component. With all other…

Q: If the concentration of Na+ inside of a cell increases, the Nernst potential for Na+ will do what?

A:

Q: Briefly define steel corrosion. What are the four elements necessary for corro-sion to occur?

A: Corrosion : Corrosion is a natural process in which a metal is deteriorated or decayed by a chemical…

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: Trains powered by electricity, including subways, use direct current. One conductor is the overhead…

A: Corrosion is the process in which a metal is degraded in the presence of oxygen. The process of…

Q: Example 9. In an electrolysis experiment, a current was passed for 5 hours through two cells…

A: Given: Time=5 hoursmass of gold=9.85 goxidation number of gold=+3 To find: Amount of copper…

Q: Four different bridges use steel as the principal load-bearing component. With all other things…

A: Which bridge will steel undergo the fastest corrosion is given below.

Q: Example 9. In an electrolysis experiment, a current was passed for 5 hours through two cells…

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

Q: corrosion rate

A:

Q: Example 8 Calculate the corrosion rate in mpy of Al specimen (5 cm) immersion in aqueous solution…

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Q: 3.) Discuss how impressed current can prevent the corrosion of metals.

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

Q: rate

A: The relationship between types of metals, the electrolyte and corrosion rate has to be given.

Q: Which of the following are not factors of corrosion? A.Impurities B. Moisture C. Electrolyte D.…

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Q: Calculate Ecell for the redox reaction. (round to 2 decimal places) What is [Ni²+] when Ecell when…

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Q: Example 8. A 100 watt, 110 volt incandescent lamp is con- nected in series with an electrolytic cell…

A: Given: power=100 wattvoltage=110 volttime=10 hours To find: Mass of cadmium

Q: What are the two types of corrosion and briefly explain them

A: Corrosion is the process in which metal come in contact with oxygen, water and other impurities and…

Q: A company provides chrome plating for several auto manufacturers. They calculate they need to plate…

A:

Q: 11. What are the factors on which corrosion depends? b. Name three processes used to prevent…

A: Factors on which corrosion depends includes, Exposure to moisture Increase in temperature pH of the…

Q: The corrosion process proceeds at the same rate throughout the area exposed to the corrosive…

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Q: Explain what is considered corrosion?

A: We need to explain the corrosion process.  We will explain it with an example.

Q: Metal ENGGMATH GMATH ENGGCHEM GRVA FIT HW What metal is used as the cathode in the experiment? O FIT…

A: As we know that which  is having high standard electrode potential that is act as cathode. Because…

Q: How many grams of nickel remains in a 100 ml of 1.50 M NiCl4 solution if 3.0 ampere current is…

A: The amount of Nickel deposited has to be calculated.

Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.