Estimate the mean ionic activity for a 0.0155 molal solution of H3PO4 at 298 K. Assume complete dissociation. (Given A=0.0509) Is hydrogen a better reducing agent in acid or basic solution? Explain your answer.

Q: ELECTROCHEMISTRY: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited…

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Q: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited from an aqueous…

A: Given: Current = 7.33 A Time passed = 10 hour Power = 0.2229 KWh. Current efficiency = 81 %

Q: What is the potential of a tin-tin ion electrode measured against a normal calomel electrode at…

A: In an electrochemical cell, cations will approach the negatively charged cathode to accept electrons…

Q: Calculate the theoretical tendency of zinc to corrode (in volts) with evolution of hydrogen when…

A: Solution In the most typical use of the word, this suggests chemical science oxidisation of metal in…

Q: n a electrochemical cell are the molarity of the electrolyte CdCl2=0.10 kg/mole.   Calculate the…

A: Given data: Molality = 0.1 mol/kg Temperature T = 25o C Activity coefficient = 0.228 Eocell = 0.624…

Q: ELECTROCHEMISTRY: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited…

A: Given: Current = 5.72 A Time passed = 8 hour Power = 0.2293 KWh. Current efficiency = 91 %

Q: An aqueous solution of a platinum salt is electrolyzed for 2.00 hours using a current of 2.50 A. At…

A: According to Faraday's second law  W = ZIt  Where, W = weight deposited = 9.09 I = Current = 2.50 A…

Q: Molten ScCl3 can be electrolyzed to form metallic Sc. For what duration should an electrolysis be…

A: We have to calculate the time taken.

Q: Using information from the table above, write a net-ionic equation for the reaction between the Sn…

A: Those processes are thermodynamically favourable, which negative gibbs free energy change.

Q: (a) Calculate the half-cell potential for the reaction O2(g) + 4 H3O* (aq) + 4 e¯ → 6 H;0(€) at pH 7…

A: Standard electrode potential is the “potential that is measured by taking SHE on the other side”.…

Q: a. Write an overall reaction for the corrosion of solid iron in acidic media, and calculate the…

A: For the acidic medium, we use H+(aq) to write the overall reaction for the corrosion of iron. #(a):…

Q: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited from an aqueous…

A: Electrical energy = 0.1826 kWh

Q: Calculate the activity coefficient of hydrogen in a 6M solution of a strong acid, given that…

A: We can use the following equations to calculate the activity coefficient of H+. pH = - log10 aH+…

Q: ELECTROCHEMISTRY: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited…

A: Let voltage required is V volt . And we are given 91%effeicient current = 6.82 ,so nett effective…

Q: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited from an aqueous…

A: Formula of energy=Vit

Q: The Zn-Cl battery has been suggested as an energy generator in transportation. The reaction is as…

A:

Q: Ozone (O3) and chlorine dioxide (ClO2) are both strong oxidizing agents. Given the half reactions…

A: Given half cell reactions are : O3 + 2H+ + 2e- = O2 + H2O, E0 = 2.07 V vs. SHE ClO2 + e- = ClO2-, E0…

Q: (iv) If E°cell > 0, then what the value is of change in Gibbs free energy AG and the process is…

A: Given:: E°cell > 0 ∆G° = ?

Q: ELECTROCHEMISTRY: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited…

A:

Q: Molten ScCl3 can be electrolyzed to form metallic Sc. For what duration should an electrolysis be…

A:

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 required voltage (V) if an unknown metal (M) was electrodeposited from an aqueous…

A:

Q: Show that the oxidation of CI to Cl2(g) by Cr2072- in acidic solution will NOT occur with reactants…

A: For the production of Cl- to Cl2 by Cr2O72-, Oxidation Half reaction is, 2Cl-→Cl2+2e-...(i)…

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: Read the following sentences carefully and briefly justify the answer: (i) Combustion of Benzene…

A: Incomplete combustion result in production of sooty flame. In an open system, matter is allowed to…

Q: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited from an aqueous…

A: Given: Current = 6.2 A Time passed = 11 hour Power = 0.2406 KWh. Current efficiency = 96 %

Q: 5.16 Estimate through use of reaction energetics the yield coefficient Y in grams cells

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Q: • The siandard reaction free energy AG". • The equilibrium constant K at 25.0 °C. • The cell…

A: Gibbs free energy of a reaction is related with its equilibrium constant K  by the equation, ∆G =…

Q: How many liters of O2 at 298 K and 1.00 bar are produced in 2.50 hr in an electrolytic cell…

A: According to Faraday’s first law, the chemical deposition which takes place during electrolysis is…

Q: Molten CaCl, can be electrolyzed to form metallic Ca. For what duration should an electrolysis be…

A: Given-> Current (I) = 2.99 ampere Weight of Ca= 23.5 gm

Q: ELECTROCHEMISTRY: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited…

A:

Q: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited from an aqueous…

A: Given: Current = 4.1 A Time passed = 9 hour Power = 0.2027 KWh. Current efficiency = 93 %

Q: Show mathematically whether changes in Q have a large effect on Ecell (standard electrode cell )at…

A: Relation of Gibb's free energy with Q: ∆G=∆G∘+RTlnQ This is under non standard conditions. Relation…

Q: How many moles of aluminum metal would be formed by the electrolysis of Al3+ ions when a current of…

A: Given current = 8.31 Amp       Time = 1.7 hour     Faraday's law  w =zit  Where = Z = M/nF

Q: a) Chlorine is disproportionate in basic medium. And in an acid medium? Write both reactions and…

A: Since you have posted 2 questions, we will solve first question for you. Please repost other…

Q: What is K for the following reaction at 298K? O2(g) + 4H*(aq) + 2Fe(s) → 2FE2+(aq) + 2H2O(1) E°cell…

A: Since the E0cell is given as 1.57 V And from the reaction we can see that 2 Fe is converting to 2…

Q: (a) Predict the products of electrolysis in each of the following:(i) An aqueous solution of AgNO3…

A: A voltaic cell is an example of electrochemical cell. It uses a chemical reaction to produce…

Q: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited from an aqueous…

A: Voltage calculated is voltage supplied and energy is assumed to be input energy or total energy…

Q: What mass of Ni²* is produced in solution by passing a current of 67.0 A for a period of 14.0h,…

A: In the given question we have to calculate the mass of Ni2+ ion.  the given data are, Time = 14.0…

Q: The relationship between the change in Gibbs free energy and the emf of an electrochemical cell is…

A: Electric work is product of charge passed through electric cell and cell potential. So, electrical…

Q: Calculate AH", AS and AG" for this reaction at 303 K, stating any assumptions that you make.

A: Equilibrium constant is temperature dependent and is expressed as ln K =- ∆H0RT+∆S0R Assuming ∆H0…

Q: ELECTROCHEMISTRY: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited…

A: Given the electrical energy supplied or electrical work done, W = 0.188 kWh  time, t = 10 h Current,…

Q: ELECTROCHEMISTRY: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited…

A: Given: Current = 5.05 A Time passed = 12 hour Power = 0.1734 KWh. Current efficiency = 86 %

Q: ELECTROCHEMISTRY: Calculate the required voltage (V) if an unknown metal (M) was electrodeposited…

A: Given current = 6.46 A  Time = 11h  Energy = 0.2025 KWh  Efficiency = 90%  We have to find Voltage

Q: the overall reaction and standard cell potential at 25 degress celsius for the rechargeable Ni-Cd…

A: At anode- OXIDATION HALF REACTION Cd(s) + 2OH-(aq) --------> Cd(OH)2(s) + 2e-…

Q: Molten ScCl3 can be electrolyzed to form metallic Sc. For what duration should an electrolysis be…

A:

Q: How many liters of O2 at 298 K and 1.00 bar are produced in 1.25 hr in an electrolytic cell…

A: According to Faraday’s first law, the mass of the substance (m) deposited or liberated at any…

Q: Molten SCCI3 can be electrolyzed to form metallic Sc. For what duration should an electrolysis be…

A: We have to calculate the time needed for deposit of the metal.

Q: (a) Predict the products of electrolysis in each of the following:(i) An aqueous solution of AgNO3…

A: A voltaic cell is an example of electrochemical cell. It uses a chemical reaction to produce…

Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.