Explain the working of the oxygen probe by referring to reactions that take place at the cathode and anode

Q: The chemistry of corrosion of iron is essentially an electrochemical phenomenon. Explain the…

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Q: if 9.8g water is used in electrolysis, what is the percent yield if 5.6g of oxygen was collected…

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Q: Explain why the electrolysis of brine is doneon a large scale at many sites around the world.

A: Explain why the electrolysis of brine is done on a large scale at many sites around the world.

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: What are the half-reactions that take place in the electrolysis of molten NaCl?   1) The…

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

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: Write the balanced equation for the reaction betweenhydrogen gas and oxygen gas in a fuel cell.

A: Write the balanced equation for the reaction between hydrogen gas and oxygen gas in a fuel cell.

Q: Explain why the products of the electrolysis of brine and the electrolysis ofmolten sodium chloride…

A: Electrolysis of Molten NaCl: The products formed by electrolysis of molten sodium chloride are…

Q: Name the elements contained in anode mud during refining of copper. Why does it contain such…

A: The name of  elements contained in anode mud during the refining of copper has to be given,

Q: A constant current of 9.25 amperes is passed through a cell containing iridium (III) nitrate,…

A: We have current as 9.250 A , time as 7.57 hrs, deposit of Ir is taking place, we have to calculate…

Q: Complete the table below: Galvanic Electrolytic positive electrode negative electrode flow of…

A: The electrode which has less negative reduction potential will act as a cathode and will undergo…

Q: the direction of electron flow in an electrochemical cell is: a) from the anode to the cathode via…

A: a option is correct.  On anode oxidation takes place . So flow of electrons takes place from anode…

Q: Based on the information in Table 10.2, which statement is false? Zinc ion is reduced to zinc metal.…

A: Standard reduction potential and standard oxidation potential data are used to predict the anode and…

Q: what types of difficulties are to be faced during electrolysis of NaCl ?

A: We acquire hydrogen and chlorine by the electrolysis of aqueous sodium chloride where aqueous sodium…

Q: Compare the reactions involvedin the electrolysis of molten sodiumchloride with those in the…

A: Electrolysis reactions used direct source of electricity to produce important species from the…

Q: Which electrode gives the electrons to oxygen gas? a. Anode b. Cathode с. КОН d. Terminal

A: The gain of the electron is defined as the reduction and it occurs at the cathode part of the…

Q: When coper and aluminum electrodes are connected in a battery made of stadard half cells...…

A: The anode is the electrode at which oxidation takes place. The cathode is the electrode at which…

Q: write the half-reaction of the decomposition of water that happens at the anode. Which product will…

A: oxidation (anode): 2H2O(l)→O2(g)+4H+(aq)+4e−  E0=−1.23V

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: Write the experimental protocol as well as the measures to be taken in the experiment to demonstrate…

A: Rusting is an oxidation process so it requires both water and air to cause rusting of irom…

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: Explain Anode, Cathode, and Salt Bridge?

A: An electrode is a conductor which helps in establishing electrical contact with a non-metallic part…

Q: Nova was passed on a silver locket from her grandmother. The locket had a lot of chip marks upon…

A: The question is based on the concept of electrochemistry.   the electrode which has higher reduction…

Q: Which statement BEST describes the function of the salt bridge in an electrochemical cell? The salt…

A: In an electrochemical cell oxidation takes place at anode so positively charge ions increases in…

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: Make a sketch of an electrolysis cell that electroplates nickel onto other metal surfaces. Label the…

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Q: Discuss how an electrochemical cell is constructed and show a diagram indicating all its components.

A: •ELECTROCHEMICAL CELL=> A cell which can produce electric current by chemical reaction.…

Q: which gas formed at each electrode in the electrolysis of water (the Petri dish where you did NOT…

A: The process by which compound breakdowns to different ions and molecules when electricity is applied…

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

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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: 8. Out of the following statements, which is incorrect? In a galvanic cell: a. The oxidation takes…

A: Statement of Galvanic cells.We need to select the incorrect statement of galvanic cell.

Q: An iron electrode in a solution of iron (II) nitrate  and a magnesium strip in a solution of…

A: Standard reduction potential of Fe = -0.44 V Standard reduction potential of Mg = -2.372 Since…

Q: In the electrolysis of water, what can you say about the volume of water displaced in each…

A: Electrolysis can be defined as a process  by which electric current is passed through a substance 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.