What is the value of the equilibrium constant for the reaction between each pair at 25°C? (a) Al(s) and Cd2+(aq)(b) I2(s) and Br-(aq.Calculate ΔG° for each of the reactions.

Q: What is the electrical current, in Amperes, that must be applied if 6.50 g Ag is deposited at the…

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Q: Calculate the equilibrium constant (KP) for the following reaction at 25°C:

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Q: Chromium can be electroplated from aqueous potassium dichromate, with the reduction shown below. If…

A: Given data Current (i) = 6 A Voltage (v) = 4.5 V Volume of K2Cr2O7 = 215 mL Concentration of K2Cr2O7…

Q: During a period of discharge of a lead–acid battery, 402 gof Pb from the anode is converted into…

A: Overall cell reaction is Pb(s) + PbO2(s) + 2H+ (aq) + 2HSO4- → 2 PbSO4 + 2H2O Where, 1 mol of Pb is…

Q: Define Galvanic Series.

A: Galvanic series has to be defined. The galvanic series is predominant for selection of material to…

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: 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: 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: The passage of a current of 0.750 A for 25.0min deposited 0.369 g of copper from a CuSO4 solution.…

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Q: How many seconds are required to deposit 0.268 grams of iron metal from a solution that contains…

A: Given  Mass deposited (m) = 0.268 g Current (i) = 1.22 A Time (t) = ? S The equation is Fe2+ + 2e-…

Q: A solution of a metal ion M 3+(aq) is electrolyzed by a current of 5.00 A. After 10.0 minutes, 1.19…

A: The given data contains,       current =5 A      time =10 min60s1 min=600s

Q: 6) Chromium can be electroplated from aqueous potassium dichromate, with the reduction shown below.…

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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: How many seconds are required to produce 8.00g of aluminum metal from the electrolysis of molten…

A: Assume that the required seconds as x. 1 A = 1 C/s. Coulombs generated by 12.0 A in x seconds is 12…

Q: If a water electrolysis cell operates at a current of 7.8 A, how longwill it take to generate 25.0 L…

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Q: state and explain Faraday’s laws of electrolysis. What is Electrochemicalequivalent?

A: Faraday’s first law of electrolysis states that the mass of the substance accumulated or released at…

Q: How long, in hours, must a current of 5.00 A be applied to a solution of Ag+ to produce 10.5 grams…

A: From the combination of Faraday's first and second law, we have : m = ItM/Fz  Or, t = mFz/IM ...(1)…

Q: A lead storage battery delivers a current of 6 A for one hour and 22 minutes at a voltage of 12 V.…

A: The electrical energy which is generated in the lead storage battery will be equivalent to the…

Q: Predict whether the following reactions will be spontaneousin acidic solution under standard…

A: When Gibb's free energy of a reaction delta G is negative, then the reaction is spontaneous. When…

Q: A Cr3+1aq2 solution is electrolyzed, using a current of 7.60 A. What mass of Cr(s) is plated out…

A: Charge flowing per unit time is known as current which may be expressed mathematically as :…

Q: Chromium can be electroplated from aqueous potassium dichromate, with the reduction shown below. If…

A: a) 215 ml  ofb1.25  potassium  means (1.25/1000)×215 = 0.26 mol of potassium dichromate.   From the…

Q: 3. The passage of a current of 0.750 A for 25.0 min deposited 0.369 g of copper from a Cuso,…

A: The Faraday's laws are the main concepts of electrochemistry.  The first law shows  the connection…

Q: Calculate the standard Gibbs energy in kJ/mol change for the following voltaic cell A(s) | A3+(aq)…

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Q: In galvanic cells, the following must be followed to have a spontaneous reaction between Mg and Fe,…

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Q: Consider the following reaction at 298K. Ag" (aq) + Cu (aq) Ag (s) + Cu²+ (aq) - Which of the…

A: The half cell reactions are: Anode: Cu+(aq) →Cu2+(aq) + e-                            E° = 0.16…

Q: Calculate the equilibrium constant at 25 °C for the following reaction from the value of AG given.…

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Q: How many minutes will it take to electroplate 23.1 g of gold by running 5.00 A of current through a…

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Q: A lead storage battery delivers a current of 6 A for one hour and 22 minutes at a voltage of 12 V.…

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Q: In a galvanic cell, Q = 0.0050 and K = 1.2E4. Based on these values, Ecell is and E'cll is positive…

A: From the given data, we have to identify the signs of Ecell and E°cell

Q: If the potential of a Zn-H+cell is 0.45V at 25 degrees C when[Zn]-1.0M and PH2=1.0 atm, what is the…

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Q: 5. Followed from the previous question, it was determined that K for the reaction at 25°C between…

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Q: How long, in minutes, will it take to produce 370.0 g of pure lithium by running a current of 330 A…

A: Given, Current passing = 330 A Mass of Li = 370.0 g  Molar mass of Li = 6.94 g/mol

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

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Q: How long will it take to plate out 0.270 g of iron metal from a solution containing Fe3+(aq) in an…

A: Electrochemistry is branch of chemistry in which we deal with oxidation and reduction reaction…

Q: How many grams of iron metal are plated out when a constant current of 8.50 A is passed through…

A: We have 8.5 A of current, passed for 50 minutes, we have to calculate the mass of iron metal…

Q: If the standard voltage of the reaction of Cu(s) with Ag*(aq) is 0.46 V, what is the standard gibbs…

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Q: Calculate Δ G for the following reaction at 25 ° C:   Pb(s) + Ni2+(aq) ⇌ Pb2+(aq) + Ni(s)

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Q: A steady current of 3 A is maintained for 10 mins in AgNO3 solution. How much Ag is deposited at the…

A: Given: Current is 3 A. Time is 10 minutes. To find: Mass of Ag on cathode

Q: What is the standard Gibbs free energy change for the reaction between H2O2(aq) and Mn2+ in acidic…

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Q: Consider the following reaction at 298 K. Pb?+ (aq) + H2 (g) → Pb(s) + 2H* (aq) Which of the…

A: Recall the given equation      Pb2+aq + H2g → Pbs + 2H+aqWrite cell notation…

Q: In an electrolytic cell, how many grams of nickel (MM = 58.69 g/mol) will be deposited on a metal…

A: we have to calculate the mass of Ni deposited

Q: Give the equilibrium constant for the following reaction at 298 K.

A: In the given cell reaction, cupric ion is being reduced to copper and Sn+2 is being oxidized to…

Q: Tollowing uld resuit for any CE aised from 25 °C to 100 °C? . The cell potential would not change at…

A: To discuss the Effect of temperature on the cell potential

Q: Consider the following reaction and its AG° at 25.00 ° 2 Ag*(aq) + Cu(s) → 2 Ag(s) + Cu²+(aq) AG° =…

A: Given that: temperature, T = 25 oC ∆G°= -88.66 kJ/mol To find: standard cell potential, Eocell?…

Q: Answer the four questions below related to the spontaneous redox reaction that occurs whenCr(OH)3(s)…

A: The two half-reactions of the given redox reaction are as follows:

Q: The free energy change for the following reaction at 25 °C, when [Cr**]= 2.80×10-3 M and [H*]= 1.11…

A: The formula of calculation of Gibbs free energy is: ∆G=-nFE (a) The chemical reaction taking place…

Q: How much time is needed to deposit 1.0 g of chromium metal from an aqueous solution of CrCl3 using a…

A: Faraday's law of electrolysis draws a relationship between the amount of substance deposited by an…

Q: How many seconds are required to deposit 0.150 grams of tin metal from a solution that contains Sn2+…

A: Mass = 0.150 g Current (i) = 0.652 A = 0.652 C/s  Time (t) = ?