Which form of energy production is more efficient? ○ Dry cell alkaline battery ◇ fuel cell O Nickel-cadmium battery 13

Q: 2Cu²+ (aq) + Mg (s) →→→ 2Cu+ (aq) + Mg²+ (aq) Determine the equilibrium constant (K) of this…

A: The question is based on electrochemistry . we need to calculate equilibrium  constant for the given…

Q: For the hypothetical reaction:A+ + B → A + B+ What is the cell potential given the following…

A: The given hypothetical reaction is

Q: An electrochemical cell has a positive standard cell potential buta negative cell potential. Which…

A: Formula: ∆G =∆G°+2.303RT log Q  Ecell=Ecell°-0.0591nlog Q  For negative value of cell potential, Q…

Q: Copper metal (63.546 g/mol) is purified by electrolysis. How much copper metal (in grams) could be…

A: Molar mass of copper = 63.5 gm  N-factor (valancy) = 2

Q: sof s of a That is

A: We will identify the alkaline earth metal

Q: Given the following electrochemical cell, calculate the potential for the cell in which the…

A: First we need to write the balanced half cell reaction.

Q: Suppose that you want to construct a voltaic cell from nickel and cadmium for a chemistry project.…

A: Given data,Molarity of Cd2+=0.01ME=0.17V

Q: 8. Which of the following is false? In a galvanic electrochemical cell the cathode is the place…

A: At equilibrium, the potential of cell reaches to zero. The reactions proceeds in forward and…

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 laboratory was assigned the job of determining the copper(II) ion concentration in thousands of…

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Q: Find the emf of the concentration cell at 25.0 ºC in which the concentration of Ag+ ions in the…

A: At 25°C, emf of the concentration cell is calculated as…

Q: One-half cell in a voltaic cell is constructed from a silver wire dipped into a AgNO3 solution of…

A:

Q: The rusting of the sheet metal of a car is an example of:   uniform corrosion   galvanic corrosion…

A: Corrosion  means  oxidation of metal in presence  of moisture.

Q: A galvanic cell is made using 0.25M of Zinc Sulfate and an unknown amount of copper (II) sulfate.…

A: The reaction for the Zn-Cu galvanic cell is given as:Zn (s) + Cu2+ (aq) → Zn2+ (aq) + Cu (s)The cell…

Q: 1. A voltaic cell consists of two half-cells. One of the half-cells contains a platinum electrode…

A: We'll answer the first question since the exact one wasn't specified. Please submit question…

Q: A solution containing vanadium (chemical symbol V) in an unknown oxidation state was electrolyzed…

A: Given: Current = 2.96 A Time = 33.4 min Mass of V deposited at cathode = 0.784 g Molar mass of V =…

Q: A proposed battery involves the reaction of Zn(s) and Cl2(g) to give ZnCl2. If you want such a…

A: The Faraday’s first law of electrolysis state that the mass of the substance  deposited at any…

Q: A student wishes to set up a voltaic cell that is a concentration cell made using two solutions of…

A: Concentration cell and cell potential calculation :

Q: Silver can be electroplated at the cathode of an electrolysis cell by the half-reaction. Ag+ (aq) +…

A: The metal deposited on cathode is directly dependent to the amount of charge passed.

Q: What material is used as the positive electrode in an Alkaline Cell

A: alkaline battery  is a type of primary cell.In which energy is obtained from the reaction between Zn…

Q: Calculate Ecell (volts) for the galvanic cell containing the reaction shown below where the…

A: Ecell can be calculated using nernest equation.  For this first we write reduction and oxidation…

Q: 11. Consider an electrochemical cell constructed from the following half cells, linked by a KCl salt…

A: Answer:- this question is answered by using the simple concept of electrochemical cell in which…

Q: In one process used for electroplating silver, a current of 10.23 A was passed through an…

A: Dear student, this question is related to electroplating process.

Q: A solution of Mno is electrolytically reduced to Mn3+. A current of 7.79 A is passed through the…

A:

Q: Write the reactions that occur in the following cells for charge/discharge cases: Alkaline Dry Cell…

A: Charge and discharge are fundamental processes that occur in batteries, which are devices that…

Q: Consider the following cell: Mn(s) | MnBr2(0.046 M) || CuBr(0.024 M) | Cu(s) a) Using the standard…

A: In this question, we have to identify the cell  1-oxidation half cell 2-reduction half cell…

Q: A solution containing vanadium (chemical symbol V) in an unknown oxcidation state was electrolyzed…

A:

Q: 1. A voltaic cell consists of two half-cells. One of the half-cells contains a platinum electrode…

A:

Q: A galvanic cell is an electrochemical cell in which a spontaneous chemical reaction can be used to…

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Q: Calculate the potential for the electrochemical cell made from zinc and magnesium and their…

A: To find electrode potential.

Q: Why EMF of the cell increases when the concentration of the solution at the anode decreases? Why EMF…

A:

Q: The following electrochemical data may be helpful in answering the question below. Use the table of…

A: The balanced reaction : Fe(s) + Fe2(SO3)3(aq) → 3FeSO3(aq)

Q: 12. Which of the following terms can be used to describe an electrochemical cell in which a…

A: 12) Answer :- Option 2 is correct. A galvanic cell (Energy released by spontaneous redox reaction is…

Q: What process occurs at the cathode in a galvanic cell?    oxidation    galvanization…

A: A galvanic cell is a setup in where there are two electrodes, anode and cathode, where oxidation and…

Q: Describe the working principle of Alkaline fuel cell (AFC). What is the “poisoned state” of an AFC?…

A: Answer: An alkaline fuel cell (AFC) is an electrochemical device that converts chemical energy from…

Q: anode half-reaction: cathode half-reaction:

A:

Q: The main difference among the various types of fuel cells is the electrolyte. True False

A: The fuel cell are differentiated by the type of electrochemical reaction taking place in it.

Q: A voltaic cell is constructed at 25 °C from a half-cell in which a nickel rod is dipped into a…

A: The electrochemical cell that utilized energy released from spontaneous chemical reaction to produce…

Q: A1.0-L sample of 1.0 M HCI solution has a 13.5 A current applied for 41 minutes. What is the pH of…

A: Since HCl is a strong acid. Hence it will dissociate completely into ions Hence moles of HCl = moles…

Q: 8. An electrochemical cell is constructed with a zinc electrode immersed in a 1.0 M ZnCl₂ solution…

A: Determination of standard electrode potential for the given electrochemical cell: Zn2++ 2e-→Zn…

Q: current of 3.55 A is passed through a Cu(NO3)2 solution for 1.90 h. How much copper is plated out of…

A:

Q: Which is a type of secondary battery that can store large amounts of charge and produce large…

A: Batteries are generally of two types, primary and secondary. Primary batteries are those in which…

Q: electrochemical cell consists of a standard hydrogen electrode and a copper metal electrode. a. What…

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

A:

Q: O ELECTROCHEMISTRY = Understanding concentration cells 13/5 A certain metal M forms a soluble…

A: This question is solved by using the simple concept of electrochemistry which involves oxidation at…