Suppose somebody in the laboratory doesn’t quite turn off the current in an electrolysis cell so that 4.2 mA of current continues to flow. If the cell then is left untouched for exactly three weeks, How many moles of electrons have flowed through the cell in that time?

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

A: According to the first law of Faraday, the mass of a metal deposited on the anode during…

Q: A constant current of 1.6 A is used to precipitate copper at the cathode and oxygen at the anode of…

A: value of constant current = 1.6 A Time = 30.4 minutes cathode - copper Anode - oxygen

Q: What is the purpose of the salt bridge in an electrochemical cell? To maintain electroneutrality To…

A: Given : We have to tell the purpose of salt bridge in an electrochemical cell.

Q: Consider the following electrochemical cell notation with a cell potential of 1.22 V. Pt(s) ∣ H2(g,…

A: The cell notation given is,  Pt(s) ∣ H2(g, 1.0 atm) ∣ H+(aq,1.0M) ∣∣  Au3+(aq,? M) ∣ Au (s)

Q: Calculate the standard cell potential for the following electrochemical reaction. Use the values…

A:

Q: A voltaic cell is based on the reaction Sn1s2 + I21s2 ¡ Sn2+1aq2 + 2 I -1aq2 Under standard…

A: The overall cell reaction given and the half reactions are

Q: A metal anode has a standard reduction potential of minus 1.56 V and the cathode has a reduction…

A: Given :-  E°anode = -1.56 V  E°cathode  = -1.16 V  To calculate :-  E°cell

Q: Chrome is plated from solutions of chromium (III) chloride. If a current of 4.57 A is passed through…

A: Given that: Mass of chromium deposited = 14.5 g Amount of current passed through solution = 4.57 A…

Q: A battery can provide a current of 4.00 A at 1.60 V for 1.00 hr. How much energy (in kJ) is…

A: Given that a current of 4.00 A was provided by battery at 1.60 V. The power can be calculated as…

Q: Relate amount of product(s) generated in an electrolytic cell to the stoichiometry of the reduction…

A: An electrolytic cell is the type of cell which converts chemical energy to electrical energy.

Q: Use a table of Standard Reduction Potentials to predict if a reaction will occur between Hg metal…

A: We will write reaction first , then using standard reduction potentials, we will predict whether…

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

A:

Q: Calculate the standard emf of a cell that uses the Mg/Mg2+ and  Cu/Cu2+ half-cell reaction at 25°C.…

A: From Electrochemical series- we have standard reduction potential of Mg2+/Mg and Cu2+/Cu are -2.52V…

Q: Why an electrochemical cell stop working after some time? The reduction potential of an electrode…

A: Electrochemical cell is used for conversion of electrical energy into chemical energy.

Q: A battery can provide a current of 2.20 A at 1.00 V for 8.00 hr. How much energy (in kJ) is…

A: Given information,Battery provides a current 2.20 A at 1.00 V for 8.00 hr.Calculate the power,

Q: Consider a galvanic cell based on the reaction Zn + MnO4→ Zn²* + Mn²+ in acidic solution. Calculate…

A:

Q: Explain the effect of changes in concentration of the solutions in the anode and cathode…

A: Electrochemical cell: Cell which produce electricity by help of chemical reaction occurring in it.…

Q: Why is zero potential possible in electrolysis but not in galvanic cell?

A: In an electrolytic cell, the external electric source is applied for the chemical reaction to occur.…

Q: Calculate the standard cell potential, ?∘cell, for the equation   Zn(s)+F2(g)⟶Zn2+(aq)+2F−(aq) Use…

A:

Q: How is the cell potential of an electrochemical cell (E°cell) related to the potentials of the…

A: The cell potential, Ecell is the measure of the potential difference between two half cells in an…

Q: What is a cell diagram? Write the cell diagram for a galvanic cell consisting of an Al electrode…

A: For cell diagram representation, there is the need of cathode , anode and salt bridge.

Q: Calculate the standard cell potential, Ee, for the equation Sn(s) + F,(g) → Sn²+(aq) + 2F¯(aq) Use…

A: Standard reduction potential can be obtained using its respective table.   We know more negative…

Q: What reaction (oxidation or reduction) occurs at the anode of a voltaic cell? What is the sign of…

A: In a voltaic cell, the electrode where oxidation occurs is called anode.

Q: Zinc metal is deposited onto a cathode surface by passing a current of 1.87 amps through a solution…

A:

Q: For the voltaic cell indicated by: Sn (s)|Sn²+ (aq)||Fe3+ (aq), Fe2* (aq)|Pt (8) Sketch the cell,…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: A battery can provide a current of 2.20 A at 1.40 V for 10.0 hr. How much energy (in kJ) is…

A: GIVEN: Current = 2.20 A Voltage = 1.40 V Time= 10.0 hr To CALCULATE: Energy (kJ)

Q: In an electrolytic cell, silver is deposited at the cathode when a current of 2.75 A is passed for…

A:

Q: Explain how it is possible to make a galvanic cell with a non-zero voltage using the same material…

A: A galvanic cell with a non-zero voltage and that has same material as cathode and anode is termed as…

Q: How does lowering the concentration of the solution in the anode affect the cell potential? How does…

A: A galvanic cell is a electrochemical cell. It supply electric through a redox reaction. It  is…

Q: In an electrolytic cell, does the reaction of electrolysis of water take place in a standard state?

A: Here we to explain whether the reaction of elctrolysis of water takes place in standard state or…

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: What aspects of an electrochemical cell can be manipulated to obtain the highest cell potential for…

A: A question based on the performance of electrochemical cell, which is to be accomplished.

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 certain half-reaction has a standard reduction potential E=+0.45 V. An engineer proposes using…

A: Here we have to determine E°red minimum or any  E°red maximum at cathode of galvanic cell. Given…

Q: Calculate the number of moles of electrons driven through an electrolytic cell with 3444 A of…

A: Consider the given information is as follows; Current (I) = 3444 A Time (t) = 4.6 min = 4.6 min × 60…

Q: A galvanic cell runs for 1 minute with a current of 0.20 A. How much charge passed through the cell…

A: Given : Current passed = 0.20 A And time = 1 min

Q: For the ΔG° values given here, determine the standard cell potential for the cell.(a) 12 kJ/mol, n =…

A: The standard cell potential(E0cell)is the potential difference between cathode and anode measured at…

Q: In a hydrogen fuel cell, the steps of the chemical reaction are at -electrode: H2 + 20H-→2H20 + 2e-;…

A: The reaction at each electrode is: Anode                H2 + 2OH-→2H2O + 2e-…

Q: Will the potential of the galvanic cell change if we add the same amount of water to the electrolyte…

A: Cell potential is given by Nernst equation , which is as: Ecell = Eocell - RTnFlnQ  Cell potential…

Q: The following redox reaction takes place at 25.0℃  2Au(s) + 3F2(g) → 6F-(aq) + 2Au3+(aq) a.…

A: Thequestion deals with the concept of electrochemistry. redox reaction is the  Reaction in which…

Q: The potential of a voltaic cell is 0.698 V in which the following reaction takes place: 2NO, (aq) +…

A: Given data, EMF = 0.698V [NO3-] = 0.0315M PNO = 0.922atm PH2 = 0.437atm

Q: Will the cell reaction proceed spontaneously as written for the following cell?    Sn (s)  |  Sn2+…

A:

Q: (c) For the electrochemical cell: Cd (s) / Cd Cl2 (aq, 0.0538 M) // Ag NO, (aq, 0.0320M) / Ag (s) i)…

A:

Q: A galvanic cell runs for 1 minute with a current of 0.25 A. How much charge passed through the cell…

A: Given : Current passed = 0.25 A And time = 1 min F=96500 C/mol

Q: A factory wants to produce 1.0 x 10³ kg Barium from the electrolysis of molten barium chloride. What…

A:

Q: A factory wants to produce 1.00 x 10 kg barium from the electrolysis of molten barium chloride. What…

A:

Q: Determine the overall reaction and its standard cell potential at 25 °C for these reactions. Is the…

A: 2H+aq+2e-→H2g E°=0.00 VoltBr2l+2e-→2Br-aqE°=1.07 voltCell RepresentationAnode II…

Q: If a current of 15 A is run through an electrolysis cell for 2.0 hours, how many moles of electrons…

A: First find number coulombs (C) charge  i.e  Q = i x t  Where  Q= charge in coulombs  i = current  in…

Q: Calculate the number of moles of electrons driven through an electrolytic cell with 3503 A of…

A:

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.