In electrochemistry, spontaneous redox reactions are used for what purpose?

Q: Discuss how the electrochemical series can be used to determine if a redox reaction is spontaneous.

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

Q: >Why do some electrochemical cells employ inert electrodes such as platinum?

A: In some redox reactions, may be one of the reactant or product and sometimes both reactant and…

Q: Define electrode potential. How is it different from liquid junction potential? How and why is the…

A: A question based on electrochemistry, which is to be accomplished.

Q: The following half-reactions were combined to construct a new galvanic cell. What is the standard…

A: Given-> [AuBr4]-(aq) + 3e- --------> Au(s) + 4Br-(aq).   E°=0.854 V Au3+(aq) + 3e- ------->…

Q: The table below gives the standard electrode potential values of some electrode. What standard…

A: The potential of all electrodes are measured by comparing their potential to that of standard…

Q: Explain the significance of the standard hydrogen electrode (SHE) in the tabulation of standard…

A: The standard hydrogen electrode  (SHE) in the tabulation of standard reduction potentials refers to…

Q: One method to prepare F2 is by the spontaneous reaction of Cl2 in an aqueous NaF solution?

A: One method to prepare F2 is by the spontaneous reaction of Cl2 in an aqueous NaF solution

Q: In a galvanic cell: • at an electrode made of metal A, A is forming A2+ ions • at an electrode made…

A: In a Galvanic cell, 1) The left side of the cell is anode and oxidation takes place. 2) The right…

Q: What is galvanization? How doesgalvanizing iron protect it from corrosion?

A: Corrosion is a natural process that deteriorate the quality of metal by forming an oxide layer over…

Q: From the thermodynamic data, ΔSsys for the given fuel cell reaction is negative but the reaction is…

A: The reason the negative entropy of the system can be justified as spontaneous has to be explained.…

Q: What flows in the internal circuit of a galvanic cell.

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Q: the terms cell potential and electromotive force mean the same thing in electrochemical cells?

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Q: What is the definition of the standard cell potential ? What does a large positive standard cell…

A: The potential of an electrode to get reduced at standard conditions of temperature and…

Q: A student was asked to set-up a galvanic cell in the laboratory. He used two copper electrodes, one…

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Q: A student made measurements on some electrochemical cells and calculated three quantities: • The…

A: It is an example of electrochemical reaction  Here we are required to find which of 3 quantities are…

Q: Consider a redox reaction for which E° is a negative number. Can an electrochemical cell based on…

A: For a reaction to be spontaneous, ∆G is negative.

Q: What is the standard cell potential of an electrochemical cell with the overall reaction below? Is…

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Q: What is the significance of using inert material electrodes?

A: Write the significance of using inert material electrodes.

Q: a. What is the cell notation of the set-up? b. What is the standard cell potential?

A: Here we have to write the cell notation and to calculate standard cell potential of the following…

Q: why are Electrochemistry and Electrochemical Cells important

A: Both Electrochemistry and Electrochemical cells plays an important role in the era of this emerging…

Q: Describe how to predict the spontaneity of redox reactions, based on overall cell potential as…

A: A question to describe about determining spontaneity, which is to be accomplished.

Q: Inert metal electrodes, such as platinum and gold, generate an electrode potential that responds to…

A: Electrodes :-        Electrodes are the good conductor of electricity and these are mainly two type…

Q: Write cell schematics for the following cell reactions, using platinum as an inert electrode as…

A: This question is from chapter Electrochemistry where we are given redox reactions and we have to…

Q: I- All anodic reactions on the metal surface being protected completely stop. Il- The direction of…

A: An anodic reaction is a type of reaction that occurs in an electrochemical cell. It is half…

Q: What is understood by a normal hydrogen electrode? Give its significance.

A: Normal hydrogen electrode is the electrode that is used as reference to determine the potential of…

Q: The standard hydrogen electrode (SHE) is used to produce a standard cell potential of exactly 1 V.…

A: The standard hydrogen electrode, is a oxidation - reduction electrode which is the base line of the…

Q: Consider the reaction  MnO2 + 4H+ + 2Br = Mn2+ + Br +2H2O At what pH is the voltage zero if all…

A: Given redox reaction is : MnO2 + 4H+ + 2Br- -----------> Mn2+ + Br2 + 2H2O At what pH is the…

Q: What is the standard cell potential for the reaction below?

A: In the given reaction: Lead (Pb) is getting oxidized. Bromine (Br) is getting reduced. So, the…

Q: Determine the overall reaction and its standard cell potential at 25 °C for the reaction involving…

A: The galvanic cell involves the conversion of the energy associated with the redox chemical reaction…

Q: How is the cell potential of an electrochemical cell related to the potentials of the half-cells?

A: An electrochemical cell or a galvanic cell is a device that can generate electricity due to the…

Q: a) The more (positive or negative) the value of the standard reduction electrode potential, the…

A: Two half-reactions are involved in the net cell reaction. They occur in separate containers or…

Q: Which electrode functions as the cathode?

A: Electrode having less value of standard reduction potential ( standard electrode potential)…

Q: = standard potential of the cell, E°cell?

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Q: b) determine the standard cell potential and if the cell is more or less spontaneous at the non…

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Q: What is the decomposition potential and how it can be measured?

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Q: The relationship between the change in Gibbs free energy and the emf of an electrochemical cell is…

A: Electric work is product of charge passed through electric cell and cell potential. So, electrical…

Q: Will metallic corrosion proceed when there is no applied potential at neutral aqueous environment?…

A: Yes metallic corrosion will occur but will slow in process because corrosion of metal is formation…

Q: concepts and principles in Electrochemistry

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Q: Inert metal electrodes, such as platinum and gold, generate an electrode potential that responds to…

A: Inert metal electrodes, such as platinum and gold, generate an electrode potential that responds to…

Q: Define electrode reactions during electrolysis and identify which of the part/structure are the half…

A: Electrode reactions: The oxidation or reduction reactions that are taking place at respective…

Q: explain why SHE considered the standard electrode. When does a SHE act as a cathode? An anode?  Is…

A: Answer: Galvanic cell is the type of cell that converts chemical energy into electrical energy via…

Q: What is the value of the standard copper potential in half-cell reactions?

A: Solution-  standards copper potential in half-cell -  Ca2++2e−   ⟶   Ca            −2.868

Q: The standard cell potential is a thermodynamic state func-tion. How are E° values treated similarly…

A: The standard cell potential is a thermodynamic state function. Hence similar to other state…

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.