ELECTROCHEMISTRY: Determine the molar mass (amu) of Metal (M) if it took 2.91 minutes for a current of 1.2 A to plate 0.063 g of metal from a solution containing M2(SO4)3. (Round off the final answer to TWO decimal places. Do not include the unit.)

Q: Determine the molar mass (amu) of Metal (M) if it took 1.68 minutes for a current of 1.08 A to plate…

A: The metal will come out as M3++3e-= M . We can conclude from here that 3 moles of electrons are…

Q: Consider the corrosion of Fe in aqueous solutions under standard conditions. According to the…

A: When electrons get accepted by any particular species then that species gets reduced. The species…

Q: A)Give the reason why it is necessary to use hydrogen as a standard to define the standard potential…

A: The solutions are given below -

Q: Why is equilibrium constant K related to only E° cell and not Ecell ?

A: The reason for, equilibrium constant K related to only E0cell and not Ecell has to be given.

Q: Consider the galvanic cell constructed with the following materials Zn electrode Zn(NO3)2(aq), Fe…

A: An electrochemical cell that converts the energy of spontaneous redox chemical reactions to…

Q: Use the tabulated electrode potentials to calculate K for the oxidation of zinc by H+ (at 25 ∘C):…

A: The Nernst equation at 298 K is as follows,                                     E = Eo - 0.0592n…

Q: How long must a constant current of 50.0 A be passed through an electrolytic cell containing aqueous…

A: The balanced chemical equation for the reduction of copper is: Thus, for the production of 1 mole…

Q: Which of the following expressions is correct for the maximum mass of copper, in grams, that could…

A: Given values -> Time = 16hour = 16 × 60×60 seconds                             =16×3600 seconds…

Q: How long (in hours) must a current of 4.61 amps be passed to produce 79.5 g of copper metal from a…

A: Given:: Current i= 4.61 A  Mass of Cu = 79.5 g  Molar mass of Cu= 63.55 g mol-1 Time t= ?

Q: A constant current of 0.712 A is passed through an electrolytic cell containing molten BaCl2 for…

A:

Q: A constant current of 0.445 A is passed through an electrolytic cell containing molten BaCl2 for…

A: The reaction is, Ba2+ + 2e- ---> Ba(s) From this reaction, we can conclude that 2 mol of…

Q: A galvanic (voltaic) cell consists of an inert platinum electrode in a solution containing 1.0 M…

A: The cell is having solutions containing 1.0 M titanium(III) ion and 1.0 M titanium(II) ion, and…

Q: How long would it take to deposit 3.75 g of iron from an aqueous solution of iron (III) sulfate by…

A: According to Faraday's First Law of Electrolysis, the chemical deposition due to flow of current…

Q: Given the reaction    4 Al(s) + 3O2(g) ===>  2Al2O3(s), write the half reactions and calculate…

A: The reaction given is, => 4 Al (s) + 3 O2 (g) --------> 2 Al2O3 (s)

Q: A galvanic (voltaic) cell consists of an electrode composed of magnesium in a 1.0 M magnesium ion…

A:

Q: 1.90 cm in diameter. How many days will it take to produce a layer of gold 0.250 mm thick (on both…

A: Given data are as follows: Diameter of coin = 1.90 cm  Thickness of coin = 0.250 mm = 0.025 cm…

Q: How much time (in hr) must a constant current of 50.0 A be passed through an electrolytic cell…

A: Given : Current = 50.0 A Moles of Cu formed = 5.00 mol And the ions of Cu present in the solution is…

Q: (a) The discharge reaction for a zinc-manganese dioxide battery can be represented as: Zn(s) +…

A:

Q: Calculate AG° for the following cell: Pt|I (aq) | 12 (s) || Sn+ (aq), Sn²* (aq)| Pt Report your…

A: Change in standard gibbs free energy calculation for a redox reaction occurring in a electrochemical…

Q: Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive)…

A: We have given that Current (I) = 240 mA = 0.24 A Time (t) = 55 sec Equivalent weight of silver =…

Q: A solution of NaCl is neutral, with an expected PH of 7. If electrolysis was carried out on 500 mL…

A:

Q: Consider the following galvanic cell. (Hint: Write the balanced reaction.) Cr(s)ICr+(aq, 1.0 M) ||…

A: The cell given is, => Cr (s) | Cr3+ (aq, 1.0 M) || Ag+ (aq, 1.0 M) | Ag (s)

Q: What mass of platinum could be plated on an electrode from the electrolysis of a Pt4+ (aq) solution…

A: The given data contains, Current =0.500 ATime =55 smolar mass ofPt=55 g/mol Charge =+4

Q: Given the following reactions, find the standard cell potential. Anode: NO3- + 2H+ + e- --> NO2 +…

A:

Q: Consider the reaction given below at 25 degrees Celsius and answer the questions that follow. (A).…

A: An electrochemical cell undergo both oxidation and reduction process at the same time at respective…

Q: Oxygen Supply in Submarines Nuclear submarines can stay under water nearly indefinitely because they…

A:

Q: Consider the diagram of galvanic cell, which consists of Ag*(aq)/Ag(s) and Sn²+ (aq)/Sn(s)…

A:

Q: Fe (s) → Fe2+*(aq) + 2e¯, then Fe2*(aq) → Fe3*(aq) + e¯ (at anode) O2 (g) + 4H*(aq) + 4e → 2H2O(1)…

A:

Q: A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ∘C. The initial…

A: a)Reaction at cathode:Cu2+ + 2e- --> Cu(s)     Eocathode = 0.34 VReaction at anode:Pb (s) -->…

Q: determine the electric potential produced by the chromium electrode (and 1.0 M of its corresponding…

A: Since you have posted a question with multiple sub-parts,we will solve first three sub-parts for…

Q: The dilute sulfuric acid solution is electrolyzed with platinum electrodes with a current of 1.25 A…

A: Volume of gases evolved can be calculated from the moles of gases evolved..

Q: Oxygen Supply in Submarines Nuclear submarines can stay under water nearly indefinitely because they…

A: The electrolysis of water produces oxygen. Since the O is in 2- oxidation state in water initially…

Q: Suppose somebody in the laboratory doesn’t quite turn off the current in an electrolysis cell so…

A: The relation between charge and time is shown below: Q = It where; Q = charge I = current t = time

Q: Which of the following expressions is correct for the maximum mass of copper that could be plated…

A:

Q: Solid, metallic chromium can be electroplated from acidic aqueous solutions containing dichromate…

A: Metal electroplated than mass of metal depend current , equivalent weight of metal and time.

Q: An aqueous solution of an unknown salt of ruthenium Is electrolyzed by a current of 2.70A passion…

A: Given data contains, Current I = 2.70 A time t =20.0×60 s = 1200 s Mass of Ru deposited = 1.132 g…

Q: A galvanic (voltaic) cell consists of an electrode composed of iron in a 1.0 M iron(II) ion solution…

A: Answer: the standard potential for this cell at 25°C is 1.96 V.

Q: The reduction half-reaction in your car lead-acid battery is the reduction of lead (IV) oxide (MW =…

A: Given:  Mass of PbO2 = 221 g             Current supplied = 138 A

Q: What is K for the spontaneous reaction 3 Zn2+ + 2 Al (s) ↔ 2 Al3+ + 3 Zn(s) ?      What potential…

A: The ratio of concentration of products to the concentration of reactants raised to their…

Q: Gold is frequently purified by electroplating. Typically the gold is dissolved in a cyanide solution…

A: According to the laws of electrolysis, the weight that is deposited on the electrodes during the…

Q: what is the relation between standard electrode potential and standard Gibb's free energy ?

A: Gibbs free energy (ΔG) gives information about the direction of the reaction. If ΔG is negative, the…

Q: Molten CaCl₂ can be electrolyzed to form metallic Ca. For what duration should an electrolysis be…

A: Faraday's first law :-  It states that, the amount of the substance deposited at the electrode is…

Q: How long (hr) must a constant current of 50.0 A be passed through an electrolytic cell containing…

A: Answer: 5.36 hr

Q: A galvanic cell is made up of one electrode consisting of a copper metal immersed in 0.00500 M…

A: Given,  A galvanic cell is made up of one electrode consisting of a copper metal immersed in 0.00500…

Q: d) For a thermodynamic process, when ΔΗsys > 0, and ΔSsys7, pH<7, or pH-7)

A: d) For a thermodynamic process, the expression for change in Gibbs free energy is related to change…

Q: A galvanic (voltaic) cell consists of an inert platinum electrode in a solution containing 1.0 M…

A: Given : electrode 1 =&gt; 1.0 M titanium(III) ion and 1.0 M titanium(II) ion and electrode 2 =&gt;…

Q: You would like to produce a gold-plated coin by plating gold onto a penny 1.90 cm in diameter. How…

A:

Q: In electroplating operation, the cell potential is sometimes 0V. Why is zero potential possible in…

A: Electroplating is the process of coating metal using an electric current. This is mainly for the…

Q: Consider a simple galvanic cell consisting of two beakers connected by a salt bridge. One beaker…

A: Interpretation - To write the half cell reaction that occurs at each electrode To check here which…

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

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.