What reaction takes place in (a) an electrode made of zinc and (b) an electrode made of copper? Describe the reaction that occurs in each part.

Q: with which elements should the galvanic element be built in order for its electromotive force to be…

A: The electromotive force (emf) of any cell is defined as maximum potential difference between the two…

Q: Given the following standard reduction potentials:

A: To find the standard emf of a cell  Ecello  = ( Ered o)cathode  -( Eredo )anode    When two half…

Q: When a galvanic cell operates long enough, we notice as the electrodes undergo physical changes.…

A: Answer - galvanic cell  - A galvanic cell or voltaic cell, respectively, is an electrochemical cell…

Q: Give the condition for Daniell Cell in which there is no flow of electrons or current or we can…

A: To find: The condition for Daniel cell  in which there is no flow of electrons or current or we can…

Q: What is the use of Platinum foil in the hydrogen electrode?

A: It is a type of gas electrode which we use as a reference for every other electrode to calculate…

Q: Why are the atoms in the electrode represented by larger spheres than those in the solution?

A: When one or more electrons are removed from a neutral atom, cation (positive ion) is formed. When…

Q: (e) Which electrode is positively charged? (f) Which electrode increases in mass during cell…

A: The reduction takes place at cathode which means gain of electrons. The oxidation takes place at…

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: A current of 4.90 A is passed through a Cu(NO,), solution. How long, in hours, would this current…

A: The chemical deposition due to the flow of current through an electrolyte is directly proportional…

Q: Identify the components of a pH electrode and explain their functions. Explain throughly.

A: pH electrodes are analytical electrodes that are used to measure the pH of the solution depending on…

Q: How would decreasing temperature affect measuring a Standard Reduction Potential? O it would prevent…

A: Interpretation-  To tell about how would decreasing temperature affect measuring a standard…

Q: What unit is used to measure the magnitude of electrical current? What unit is used to measure the…

A: The unit used to measure the magnitude of electrical current is Amperes.The unit used to measure the…

Q: The reference electrode that is used to measure all other standard electrode potentials is called…

A: To fill the blanks

Q: The mass of the magnesium that is plated through electrolysis is 2.7 g in 2.5 hours. What current is…

A: Given -> Weight = 2.7 gm Time (t) = 2.5 hour = 2.5 × 3600 seconds = 9000 s

Q: Give three (3) examples in which scenario has electrode reactions during electrolysis. Identify…

A: i) Electrolysis of molten lead bromide. In molten state, PbBr2 exists as Pb2+ and Br- ions. On…

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: You are asked to report the positive voltage, what type of electrochemical cell did you expect to…

A: Interpretation - Given that we are asked to report the positive voltage, what type of…

Q: What happens if you interchanged the assigned anode as cathode and the cathode as anode In terms of…

A: In electrochemical cell the electrical energy  is form by doing anodic oxidation and cathodic…

Q: Boundary potential is the potential around electrodes of the fourth kind (redox electrodes).

A: Electrodes are commonly used in electrochemical cells. The electrode, is any substance that is a…

Q: What unit is used to measure the magnitude of electrical current?

A: Rate of flow of charge is known as current.

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

A: Write the significance of using inert material electrodes.

Q: How much current is required to electroplate a metal surface with 0.493 g nickel metal from a…

A:

Q: What's Faraday's law of electrolysis?

A: Amount of substance deposited is directly proportional to the amount of electricity passed.

Q: What is electrode potential?

A: Electrode potential is to be defined.

Q: Discuss in detail the future of lead-acid battery, considering the extensive development and use of…

A:

Q: When can a cell generate an electric current?

A:

Q: Which of the following cell reactions would require the use of an inert electrode?

A: We have to tell which option is correct

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

A:

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…

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: 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: HOw many electrodes does an electrochemical system normaly has

A:

Q: Using the provided standard reduction potentials, which of the following cells is an example of a…

A: One with smaller or negative value will be anode and one with positive will be cathode .

Q: The first element to be prepared by electrolysis was potassium. In 1807, Humphry Davy, then 29 years…

A: Electrolysis of molten potassium hydroxide results in formation of liquid potassium, water and…

Q: Conditions needed for galvanic cell to take place??

A: We have to give the conditions for the galvanic  cell to take place as follows in step 2:

Q: at the cathode during discharge?

A:

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: What electrode is X and Y?

A: charge flow from positive electrode to negative then electrons move from negative to positive…

Q: WHAT ARE THE EFFECTS OF EXTERNAL FACTORS ON CORROSION?

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Steel is often coated with a thin layer of zinc if it is to be used outside. What characteristics do…

A: Steel is an alloy of iron and carbon, so it is prone to rusting. Galvanizing is a process where iron…

Q: How does knowledge on spontaneous and nonspontaneous reactions, and electrochemistry benefit mankind…

A:

Q: Would you expect a mercury cell to give a constant voltage and why?

A: Yes, mercury cell provides a constant voltage throughout life. This is because there are no ions…