why the reference electrode can serve as a probe to measure relative reduction potentials or even detect a change in pH of solution

Q: Explain the principle behind the working of an ion selective electrode

A: Ion selective electrode are electrochemical ion sensors that convert the activity of the target ion…

Q: What current is required to oxidize water at an electrode to liberate 1.00 mol O2/day in the…

A: Faraday first law: Mass of  substance deposited on any electrode is directly proportional to the…

Q: Why

A: The standard hydrogen electrode is also known as a redox electrode and has a platinum electrode at…

Q: What is the half reaction for silver? (* Solve for the overall reaction of the galvanic cell If the…

A: According to IUPAC notation Galvanic cell is represented as  Anode // Cathode  // indicates salt…

Q: A cell consisting of a saturated calomel electrode and a lead ion electrode developed a potential of…

A:

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

A: Reduction half-reactions are those reactions in which any species undergoes reduction reaction.

Q: a. Write an overall reaction for the corrosion of solid iron in acidic media, and calculate the…

A: For the acidic medium, we use H+(aq) to write the overall reaction for the corrosion of iron. #(a):…

Q: Give the Nernst equation for the electrode potential of a redox electorode.

A: The nernst equation can be used to determine the cell potential of a cell in non-standard state.

Q: Why is it not possible to measure single electrode potential?

A: Potential difference in the electro-chemical cell is generated due to the redox  reaction occurring…

Q: What is the aim of submerging the electrode in a potassium chloride solution? Must this be stored in…

A: Potassium chloride (KCl) goes about as a wellspring of chloride particles for the anode. The upside…

Q: Explain the importance of the reference electrode to accompany a titration based on a…

A: Redox reactions are oxidation-reduction chemical reactions in which the reactants undergo a change…

Q: : Standard hydrogen electrode is considered as a reference electrode because .A Its high potential…

A: A Standard Hydrogen Electrode (SHE) is an electrode that scientists use for reference on all…

Q: A 0.153 M neutral aqueous SnCl, solution is electrolyzed under 1 atm pressure using platinum…

A:

Q: Calculate the emf of a cell made up of iron and lead electrodes in a solution of Fe and Pb of equal…

A:

Q: How the Half Cell Potential of an electrode is measured.

A: Half cell potential of cell is also called standard electrode potential.

Q: How does a compound electrode differ from a simple ion-selective electrode?

A: An electrode is a material that connects to the non-metallic part of a device such as semiconductors…

Q: Although the hydrogen electrode may be conceptually the simplest electrode and is the basis for the…

A: Dear student this question is related to electrochemistry.

Q: Answer the following questions; What is the main advantage of the use of mixed (ionic and…

A:

Q: What is the voltage associated with the 2-electron reduction of Cu2+ to Cu at the cathode and the…

A: This question is related to electrochemistry. Electrochemical series describes the arrangement of…

Q: What are the components of the fluoride ion selective electrode

A: Given: fluoride ion-selective electrode.

Q: For Zn-Ag cell at 25°C the activity of Zn+2 and Ag+l is 0.8 and 8 respectively. 1) Write half-cell…

A: For Zn-Ag cell, [Zn+2] = 0.8, [Ag+] = 8

Q: (iii) Standard Hydrogen Electrode (SHE) is used to measure standard potential of electrodes.

A: This is the concept of electrochemistry

Q: List the types of electrodes used for pH measurement. Explain the construction details of one of…

A: The different types of electrodes used for pH measurement are combination electrodes, calomel…

Q: For the electrolysis of a molten mixture of NaCl and KBr, which of the following are the correct…

A: At anode oxidation takes place while at cathode reduction takes place.

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: Discuss why it is impossible to measure the standard reduction potential of a single half-reaction.

A: A Redox reaction leads to oxidation and reduction processes simultaneously. Oxidation and reduction…

Q: The quinohydrone electrode can be used for solutions of pH more than 7. At pH >7, the [QH2] = [Q]

A: The quinhydrone electrode is used to measure the hydrogen ion concentration (pH) of a solution. In…

Q: (a) Write an overall reaction for the corrosion of solid iron in acidic media, and calculate the…

A: #(a): In the corrosion of iron, Fe(s), O2(g), and H+(acidic medium) are the reactants, whereas…

Q: (i) Combustion of Benzene produces carbon rich sooty flame. Standard Hydrogen Electrode (SHE) is…

A: Aromatic compounds are those compounds which have a cyclic conjugation, are planar and obey Huckel's…

Q: Which of the following is not a type of electrode? A-) Three phase electrode Four Phase electrode…

A: Electrode is any substance which is a good conductor of electricity and these substances usually…

Q: Why might experimentally measured reduction potentials not be equal to the theoretical reduction…

A: The potential difference among the electrodes (anode or cathode) is referred to as EMF. The value of…

Q: What are the main components of fluoride ion-selective electrode?

A: The three main components of making a measurement at an ISE are an inner reference, or standard,…

Q: a) Explain the working principle of a glass membrane electrode which can be used to measure H + or…

A: a) Glass electrode is a secondary standard electrode that is ; its emf is measured by coupling with…

Q: 5. Iron and Cadmium are coupled together in a poorly designed component. (a) What is the likely…

A: Given: Iron and cadmium couple.

Q: Calculate the potential of a platinum electrode in contact with a solution containing 0.1 M VO2* 0.1…

A:

Q: Potentiometric methods of analysis are based upon measurements of the potential of electrochemical…

A: The potentiometry technique involves the measurement of cell potentials under conditions of no…

Q: reference electrode

A: Individual half cell potential depends on temperature, pressure and concentration of solution. So…

Q: Define electrode potential. Why absolute value of reduction potential ofelectrode cannot be…

A: In an electrochemical cell the likelihood of an electrode to get reduced and oxidized is called…

Q: All of the following can be used as indicator electrodes, except A. Ag/AgCl electrode B. Hg/HgCl…

A: In this question, we will find out the electrode which not act as indicator electrode.  You can see…

Q: What are the electrochemical technique used in fluoride ion-selective electrode?

A: Ion selective electrode (ISE) is an analytical technique used to determine the activity of ions in…

Q: determine the potential of the hydrogen electrode immersed in an acidic solution with pH = 3.5

A: The reduction potential of a half cell electrode can be determined by using Nernst equation . E = E°…

Q: Explain in short about different types of potential develops in the glass electrode?

A: Interpretation -  To explain different types of potential develops in the glass electrode -…

Q: Why is it necessary for the glass in the membrane of a pH sensitive electrode to be appreciably…

A: Hygroscopic substances are those substances which can absorb moisture from the environment.…

Q: a) Using diagrams, explain the principle of operation behind any one of the following: (i) standard…

A: Hi, as you have asked multiple questions and have not mentioned which question you want us to solve…

Q: Explain the fundamental redox reactions that occur in this battery and calculate the theoretical…

A: In Zinc silver cell there is two half cell reactions occurs :

Q: use the shorthand notation to describe a cell consisting off a saturated calomel reference electrode…

A: ESCE = 0.244 V It is the saturated calomel reference electrode by convention

Q: Why is SHE considered as the standard electrode?

A: Standard hydrogen electrode abbreviated as SHE. It is used as a reference electrode on all half cell…

Q: Why is the reference electrode placed near the working electrode in a three electrode cell?

A: We know that the working electrode is the place where the reactants undergo  reaction like oxidation…

Q: What mass of platinum can be played onto an electrode dipped in Pt(NO3)2 solution if a 2.5 current…

A: The reaction taking place will be  Pt2+  + 2 e- ----> Pt  This is because we have Pt2+ in…

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.