8. What mass of silver can be plated onto an object in 33.5 minutes at 8.70 A of current?        (Molar Mass for Ag = 107.87 g/mol)             Ag⁺(aq) + e⁻ → Ag(s)   Group of answer choices 19.6 g 0.326 g 9.78 g 3.07 g 0.102

Q: calculate the standard potential, E, determine the number of electrons transferred, n, and calculate…

A: To solve above question standard reduction potential value is used which is :  E°Al+3/Al = -1.66 V…

Q: Suppose the current flowing from a battery is used to electroplate an object with silver. Calculate…

A: Faraday's first law of electrolysis states that the mass of substance deposited is directly…

Q: A current of 3.12 A3.12 A is passed through a Sn(NO3)2Sn(NO3)2 solution for 1.20 h1.20 h. How much…

A:

Q: A digital watch battery draws 0.35 milliamperes of current, which is provided by a mercury battery…

A: The approach to this problem is to find the limiting reagent and then calculating the charge.

Q: solution of metal ions increases in direct proportion to which property? I. Electrolysis time II.…

A: According to Faraday's law of electrolysis,  Mass deposited at electrodes is directly proportional…

Q: Calculate the mass in grams of Zn deposited at the cathode in 42.5 minutes when 1.87A of current is…

A:

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

A:

Q: Let’s say that you want to plate gold metal on the outside of some heart pendants (to give to all of…

A:

Q: How many grams of silver can be plated onto an object in 9.87 minutes at 4.74 A of current ?…

A:

Q: A digital watch battery draws 0.40 milliamperes of current, which is provided by a mercury battery…

A: Faraday electricity: A movement of electrons is what electricity is. Relation between a number of…

Q: In an electrolysis of a solution containing Ni2+ (aq), metallic Ni(s) deposits on the cathode. Using…

A: (a) Current is the amount of charge flowing per unit time. If I is the current(in A) andt is the…

Q: how many hours will the watch continue to run?

A: A device that is used to store the chemical energy and also there conversion takes place to…

Q: For the reaction, 8H+ +5 Fe2+ +MnO, → Mn2+ + 5 Fe3+ + 4H2O what will have the biggest effect on the…

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Q: What mass of gold can be plated onto an object in 9.18 minutes at 4.91 A of current ? Au^3^+…

A:

Q: Define what is meant by standard cell.

A: Given term,     Standard cell

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: Convert 61840 Coulombs to Faradays.

A:

Q: Which of the following factors does not affect the electrode potential of an electrode? Size of the…

A: Temperature ,metal and molarity of solution affect the electrode potential .

Q: Consider the following equation, if the cell potential is 1.136 V at 25∘ C, determine the standard…

A:

Q: A digital watch battery draws 0.35 milliamperes of current, which is provided by a mercury battery…

A: Moles of HgO and Zn is calculated as shown,

Q: Use the Nernst equation to calculate the cell potential, Ecell, for a galvanic cell consisting of…

A: Electrons flow from anode to cathode in a galvanic cell.  In order to prevent the build-up of…

Q: Calculate DG° f( in kJ) or the reaction of iron(II) ions with permanganate ions. (F =96500 C)…

A:

Q: For the cell represented as Al(s)∣Al3+ (aq)∥Sn2+ (aq), Sn4+ (aq)∣Pt(s), how many electrons are…

A: We would first write reduction half reaction and oxidation half reaction.  From this we can check…

Q: Electrolysis of an aqueous solution of sodium chloride produces chlorine, Cl2 (9). The reaction that…

A:

Q: A digital watch battery draws 0.20 milliamperes of current, which is provided by a mercury battery…

A: Number of moles = given mass / molar mass

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: Consider the voltaic cell illustrated in Figure 20.5, which is based on the cell reaction Zn1s2 +…

A: The given reaction:Zn(s)+Cu2+(aq)→Zn2+(aq)+Cu(s)The half reaction areAnode⇒…

Q: What is the cell potential for the following reaction at room temperature?                Al(s) │…

A: At anode half cell.Al(s)→Al3++3e-..........1At cathode half cell.Cu2++2e-→Cu(s)........2multiplying…

Q: A digital watch battery draws 0.10 milliamperes of current, which is provided by a mercury battery…

A: When a current gets passed in any electrolytic solution, it causes the deposition of chemical at the…

Q: 4.) What mass of silver can be plated onto an object in 45 minutes at 9.0 A of current?

A:

Q: A current of 4.63 A4.63 A is passed through a Pb(NO3)2Pb(NO3)2 solution for 1.30 h1.30 h. How much…

A: Amount of substance deposited at electrode during electrolysis can be calculated as follows

Q: Explain Standard Electrode Potentials?

A: If the temperature is 298 K and the pressure is 1 atm,then these are known to be the standard…

Q: How are standard electrode potentials measured?

A: Standard electrode potential is referred to Eo of a cell and is in an electrochemical cell at a…

Q: The free energy change for the following reaction at 25 °C, when [H+] = 1.14 M and [Cr3+] =…

A: We know from the relation that ∆G=-nFEcell where ∆G=Free energy change F=Faraday constant Ecell=Cell…

Q: How many grams of chromium metal are plated out when a constant current of 8.00 A is passed through…

A: We have, Cr3+ needs 3 Faradays to plate 1 mole This means that for every 3 moles of electron…

Q: John set up a galvanic cell. The balanced redox reaction equation is Mg(s) + 2 Ag+ (aq) →Mg2+(aq) +…

A: emf of cell can be calculate by Nernst equation  Ecell = Eocell  - (0.0591/n ) log Q   ----(1)…

Q: Suppose the current flowing from a battery is used to electroplate an object with silver. Calculate…

A: The electrochemical reaction of silver is –

Q: How many hours are required to produce 795 grams of lead from molten lead(II) chloride (PbCl2, 278.1…

A:

Q: What mass of aluminum can be plated onto an object in 378 minutes at 5.80 A of current?…

A: A numerical problem based on Faraday's law, which is to be accomplished.

Q: Given the following cell notation for a galvanic cell, calculate the cell potential. Mg(s)|Mg²+ (aq)…

A:

Q: The particle diagrams above represent NaCl(1) and its decomposition into Na(l) and Cl2(g) in an…

A: Electrolysis is the process in which a chemical reaction occurs with the help of electric voltage.

Q: 3.Why are standard electrode potentials affected by the nature of the electrode?     A.Different…

A: The potential developed when the electrode is in contact with its own solution is called the…

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

A: In this question we need to illustrate the fact that cell potential for an electroplating cell can…

Q: How many coulombs of charge pass through a cell if 3.0 amperes of current are passed through the…

A:

Q: How many minutes would be required to electroplate 20 g of chromium (52.00 g/mol) by passing a…

A: Let t be the time required in seconds than total charge passed in t seconds = current in ampere…

Q: An aqueous solution of gold nitrate, Au(NO3)3 undergoes electrolysis in order to plate on a…

A: Given-> Au3+(aq)  +  3e- --->. Au(s) Time = 0.50 hour = 0.50 × 3600 =1800 seconds Current (I)…

Q: A digital watch battery draws 0.10 milliamperes of current, which is provided by a mercury battery…

A: m=Mass of Hg=1.10g Equivalent wt of Hg =200.59/2 =100.295 Current = 0.10 mA or 0.10x10-3 F=96500C…

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

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

Q: A digital watch battery draws 0.35 milliamperes of current, which is provided by a mercury battery…

A: The moles of HgO and Zn can be calculated as -

Q: If 1.0 Amp of current is used to reduce the following metal ions to metal for a period of 25…

A: Interpretation - To tell about which one is produce largest mass of metal when 1.0 Amp of current is…