Calculate the pH of cathode half-cell solution if the cell emf at 298 K is measured to be +0.684 V when [Zn2+]=0.30 M and Ph2=0.90 atm

Q: Calculate the mass of Li formed by electrolysis of molten LiCl by a current of 7.5 * 104 A flowing…

A: the problem is related to Faraday`s 1st Law of Electrolysis, states that " mass of the substance…

Q: A galvanic cell is constructed in which the overall reactionis Cr,0; (aq) + 14 H2O* (aq) + 6I¯ (aq)…

A: Answer:- This question is answered by using the simple concept of calculation standard cell…

Q: If the potential of a cell is 0.51 V at 25°C when [Zn2+(aq)]=0.111M and the pressure of the hydrogen…

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Q: In the electrolysis of water, how long will it take to produce 95.00 L of H2 at 1.0 atm and 273 K…

A: Given Current = 249 mA Volume = 95 L Pressure = 1 atm Temperature = 273 K

Q: In the electrolysis of water, how long will it take to produce 155.0Lof H2 at 1.0 atm and 273 K…

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Q: What is the pH of the solution in the cathode half-cell when PH2 = 1.0 atm, 3Zn2+4 in the anode…

A: The anodic half-reaction and cathodic half-reaction that occurred in the electrochemical cell are as…

Q: For a hydrogen/oxygen fuel cell, with an overall fourelectron cell reaction        2 H2(g) + O2(g) →…

A: The question can be solved on the prior knowledge of Electrochemistry and relation with the…

Q: A voltaic cell is constructed in which the cathode is a standard hydrogen electrode and the anode is…

A: The call reaction at anode is, H2(g) ------> 2H+(aq) + 2e- Standerd cell potential of the cell =…

Q: Calculate the cell potential for the galvanic cell in which the reaction Ti(s) + Co2+(aq) = Ti²+(aq)…

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Q: The standard reduction potential of a chromium electrode is -0.74 volts when chromium is reduced…

A: +1.59

Q: How much Ca will be produced in an electrolytic cell of molten CaCl2 if a current of 0.452 A is…

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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: Calculate the cell potential for the galvanic cell in which the reaction   Ti(s)+Co2+(aq)↽−−⇀…

A:

Q: The standard reduction potentials for Mg2+/Mg (E'= -2.37 V) and Fe2*/Fe (E'= -0.44 V). When a piece…

A: Concept- By the help of nernst equation, this problem can be solved. Ecell=Eocell− 0.0592/n log10Q…

Q: A. Given that the electrochemical cell L gives a potential of 0.0570 V, determine the concentration…

A: A. Given a concentration cell L, in which the concentration of bromide ion in the anode is given to…

Q: A galvanic cell at a temperature of 25.0 °C is powered by the following redox reaction: 2vo (aq) +…

A:

Q: Elemental calcium is produced by the electrolysis of molten CaCl2. (a) What mass of calcium can be…

A: Given: Current applied  = 7.5 x 103 A Time of supply   = 48 h Efficiency of cell = 68%

Q: Calculate the cell potential for the reaction: 2Fe3+ + 2I− → 2Fe2+ + I2 from the reduction…

A: In a Galvanic cell , oxidation takes place at anode and reduction takes place at cathode  If…

Q: What is the pH of the solution in the cathode half-cell inFigure when PH2 = 1.0 atm, [Zn2+] in the…

A: SOLUTION: Step 1: The anodic half-reaction and cathodic half-reaction that occurred in the…

Q: The corrosion of iron is an electrochemical process that involves the standard reduction potentials…

A: given data are-  Fe(s) ⟶ Fe2+(aq) + 2e-Eo = -0.44 V  O2(g) + 4H+(aq) + 4e- ⟶  2H2O(l)  Eo = 1.23 V…

Q: Calculate the cell potential for the galvanic cell in which the reaction Fe(s) + Au*(aq) =…

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

Q: What is the cell potential for a cell with a 2.789 M solution of Zn2+ (aq) and 0.1408 M solution of…

A: We have to find cell potential for a cell with a 2.789 M solution of Zn2+ (aq) and 0.1408 M solution…

Q: Calculate the mass of Li formed by electrolysis of molten LiCl by a current 6525 A flowing for a…

A: Given, Current = 6525 A or 6525 C/sTime = 50h = 50×3600 s = 180000seconds

Q: The following reaction has an E value of -0.76 V: H2(g) + Zn2+(aq) -> Zn(s) + 2H+(aq) a. Calculate…

A: The reaction in the question is given as- H2 (g) + Zn2+(aq)  →  Zn (s) + 2H+(aq) The cell potential…

Q: Calculate the minimum voltage in volts required to drive the electrolysis reaction of molten LiCl by…

A: The half-cell reactions are: Anode: Li(s) -----> Li+ + e- Eº = -3.03V Cathode: Cl2 + 2e-…

Q: Calculate the time required to precipitate 200 milligrams of copper by electrolysis of an acidic…

A: By 1F of charge 1 equivalent of metal can be deposited .

Q: A voltaic cell is constructed in which the cathode is a standard hydrogen electrode and the anode is…

A: Given: Concentration cell of hydrogen. Temperature = 298 K. Concentration of H+ in cathode = 1.00 M…

Q: What mass of Cu may be deposited from a Cu2+ solution during electrolysis by a current of 3.00 A for…

A: From the reaction it is clear that 1 mole Cu2+ requires 2 e-s fo the reduction of Cu2+ ions.…

Q: A voltaic cell is constructed in which the cathode is a standard hydrogen electrode and the anode is…

A:

Q: The standard electrode potentials for the reduction of N2 to N2H4 and of O2 to H2O at 298 K are…

A: The EMF of an electrochemical cell is calculated by the formula: Ecello = ECo - EAo......(1) Where,…

Q: b. Assuming the two half cells operate at standard conditions, calculate the standard reduction…

A: Recall the given half-cell reactions :                        HgO s  +  H2O l  +  2 e-  →  Hg l  +…

Q: Calculate the pH of the cathode half-cell solution if the cell emf at 298K is measured to be 0.684 V…

A: The overall reaction of the given voltaic cell is, The half reaction that occurs at anode is, The…

Q: The emf of a standard X-Y galvanic cell is -2.763V. If the standard half-cell emf for the oxidation…

A: The overall cell reaction is the sum of the two half-reactions, but the cell potential is the…

Q: What mass of Ni2+Ni2+ is produced in solution by passing a current of 67.0 AA for a period of 14.0…

A: Electrochemical cell

Q: The standard reduction potential (E°) for the conversion of Cr,0 to Cr* at 25°C in an aqueous…

A: Cr2O7 2- + 14H+ + 6e- ------------------> 2Cr3+  + 7H2O            E0(Cr6+/Cr3+)   = 1.33 V  +6…

Q: A student constructs an electrochemical cell with a half-cell composed of a nickel anode in a 0.10 M…

A: THE REPRESENTATION OF GALVANIC CELL IS Ni/Ni+2 // Ag+/Ag CELL DIADRAM

Q: At 298 K a cell reaction has a standard cell potential of +0.17 V. The equilibrium constant for the…

A: Given: T = Temperature in K = 298 K E = standard emf = 0.17 V K = equilibrium constant = 5.5 X 105…

Q: A galvanic cell is constructed in which the overall reactionis 2- Cr2 0; (aq) + 14 H2O† (aq) + 6 I…

A:

Q: Calculate cell potential at standard temperature if the concentration of [Cr3+] is o.25 M and [Sn2+]…

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Q: How much silver was there in the solution if all the silver was removed as Ag metal by electrolysis…

A: Given, Time (t) = 0.60 hr = 2160 s Current (I) = 1.00 mA = 1.00 × 10-3 A Amount (in grams) of silver…

Q: iWhat is the cell potential of reaction below at 298 K? AL9) + Cu aq) Al aq) + Cus) E cell =3.0v…

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Q: Compute the half-cell potential for reduction of aqueous hydronium ions to hydrogen gas at 1.3 bar…

A: The question is based on the concept of electrochemistry. we have been given hydrogen cell..we need…

Q: For the electrolysis of an aqueous solution of SnSO, with aluminum electrodes at standard state co…

A: Given data: Redox reaction with SnSO4 with aluminium electrode. Net redox reaction: ? voltage…

Q: At 298 K a cell reaction has a standard emf of +0.18 V. The equilibrium constant for the cell…

A: Since the relationship between equilibrium constant and cell emf is given by  nFE = RTln(k) where n…

Q: A galvanic cell is constructed in which the overall reac- tion is Cr,O} (aq) + 14 H¿O*(aq) + 6 I…

A: Reduction half reaction: Cr2O72- + 6e = Cr3+    [E0 (Cr2O72-/Cr3+) = 1.33 V] Oxidation half…

Q: In the electrolysis of water, how long will it take to produce 165.0 L of H2 at 1.0 atm and 273 K…

A:

Q: At 298 K a cell reaction has a standard cell potential of+0.17 V. The equilibrium constant for the…

A: At 298 K a cell reaction has a standard cell potential of +0.17 V. The equilibrium constant for the…

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

A: Given: Time =25.1 min Current passed = 1.23 A Mass of V deposited on cathode = 0.326 g Molar mass of…

Q: 3. At 298 K, the EMF of the cell shown below is +0.84 V. Pt(s) Fe"(aq, a = 1), Fe³*(aq, a = 1)||…

A:

Q: given the overall redox reaction of the electrochemical cell: 3Ag + + Cr = Cr3 + + 3Ag and the…

A: The balanced redox reaction taking place is given as, => 3 Ag+ + Cr --------> Cr3+ + 3 Ag…