Compute the equilibrium constant at 25 ∘C for the reaction between Sn2+(aq) and Cd(s), which form Sn(s) and Cd2+(aq).

Q: The dichromate ion, Cr2O72-, in acidic solution is a common oxidizing agent for organic compounds.…

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Q: Calculate the standard emf for the following reaction at 298 K. Cd(s) + 2 Co3+(aq) - Cd2+(aq) + 2…

A: From the value of standard reduction potential we can identify which species will oxidise and which…

Q: Define Galvanic Series.

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

Q: 1. Use the calculation of E° to determine which of the following reaction is spontaneous under…

A: Electrode potential values linked with every half reaction are useful in calculation of cell…

Q: Give an interpretation of a cell potential with a non-spontaneous reaction and a positive ΔG value

A: The relation between Gibbs free energy and Cell potential is as follows, ∆G°=-nFEcell° where, n is…

Q: Calculate: (a) the pH of the saturated solution of magnesium  hydroxide:   Mg(OH)2(s) →← Mg2+(aq) +…

A: Mg(OH)2 ⇌ Mg2+ + 2 OH¯ Ksp = [Mg2+] [OH¯]2 Ksp =1.2 x 10¯11 = (s) (2s)2 ksp = 4s3 After dividing by…

Q: Why is equilibrium constant K related to only E° cell and not Ecell ?

A: The reason for, equilibrium constant K related to only E0cell and not Ecell has to be given.

Q: For each reaction listed, determine its standard cell potential at 25 °C and whether the reaction is…

A: The standard cell potential of a cell can be determined by the oxidation and reduction potential of…

Q: Consider the following reaction at 298K. 2 Cu* (aq) + Co () 2 Cu* (aq) + Co²* (aq) Which of the…

A: We can determine the standard cell potential of a redox reaction , by knowing the standard reduction…

Q: How is equilibrium constant of a reaction related to standard cell potential?

A: How is equilibrium constant of a reaction related to standard cell potential?

Q: If E° for X + e– → Y is larger than E° for A + 2e– → B, then in a spontaneous process under…

A: The substance which has tendency to oxidize others and reduce itself is known as oxidizing agent.…

Q: Consider the following reaction at 298K. Hg2+ (aq) + Co(s)→→→ Hg(t) + Co²+ (aq) The standard Gibbs…

A: Given-> ∆G° = -219.06 KJ = -219.06 × 1000 J = -219060 J

Q: how much does the cell potential change when Q is decreased by a factor of 10 for a reaction in…

A: Given , valence factro(v) = 2 T = 298 K Q is decreased by 10 Using Nernst's equation,  E1 = E° -…

Q: What is the definition of the standard cell potential ? What does a large positive standard cell…

A: The potential of an electrode to get reduced at standard conditions of temperature and…

Q: Consider the following reaction at 298 K. 2Cr*+ (aq) + Hg(1) → 2C1²+ (aq) + Hg²+ (aq) Which of the…

A:

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 DG° f( in kJ) or the reaction of iron(II) ions with permanganate ions. (F =96500 C)…

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Q: For the cell represented as Al(s)∣Al3+ (aq)∥Sn2+ (aq), Sn4+ (aq)∣Pt(s), how many electrons are…

A: We would first write reduction half reaction and oxidation half reaction.  From this we can check…

Q: Explain the following relationships: Delta G and w, cell potential and w, cell potential and Delta…

A: The equations for the relationship between Delta G and w, cell potential and w, cell potential and…

Q: Consider the following galvanic cell. (Hint: Write the balanced reaction.) Cr(s)ICr+(aq, 1.0 M) ||…

A: The cell given is, => Cr (s) | Cr3+ (aq, 1.0 M) || Ag+ (aq, 1.0 M) | Ag (s)

Q: The standard voltage, Eº, for the reaction of Zn(s) and Cl₂(g) is 2.12 V. What is the standard Gibbs…

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Q: What does a negative standard cell potential imply about the reaction?

A: The potential difference between the cathode and anode half cell under the standard conditions of…

Q: half-reaction potentials to predict whether the following reactions are spontaneous or…

A: According to half reduction potential,  element which have higher oxidation potential is oxidized…

Q: Calculate the standard emf for the following reaction at 298 K. Cd(s) + 2 Co3+(aq) -- Cd2+(aq) + 2…

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Q: Calculate AG and K for the following reactions at 25°C. Determine if the reaction will proceed…

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Q: Gibbs energy change, A:G®, is related to cell potential, E, by the equation Calculate the standard…

A: For the given cell, change in enthalpy and entropy at 25oC is as follows: ∆rHo = -729 kJ mol-1∆rSo =…

Q: Fe (s) → Fe2+*(aq) + 2e¯, then Fe2*(aq) → Fe3*(aq) + e¯ (at anode) O2 (g) + 4H*(aq) + 4e → 2H2O(1)…

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Q: Calculate the equilibrium constant at 25 C for the Daniell cell.

A: The Daniell cell is a galvanic cell which converts chemical energy into electrical energy. The…

Q: The standard voltage, E°, for the reaction of Zn(s) and Cl,(g) is 2.12 V. What is the standard Gibbs…

A: Standard gibb's free energy is directly related to Standard EMF of the cell.  Here ,Zn2++2e-→Zn and…

Q: For the below reaction, AGn at 298 K is -84.1 kJ. Calculate its equilibrium constant, K. 3. Fe2+…

A: The equilibrium constant for a given reaction is defined as the number which is used to express…

Q: Consider the following reaction at 298K. Pb2+ (aq) + 2 Cu+ (aq) → Pb (s) + 2 Cu²+ (aq) Which of the…

A: We have to predict the correct statement.

Q: Q.4. Calculate the standard Gibbs free energy change, AG°, at 250C for the following reaction.…

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Q: 33M.  I need to calculate Gibb's free energy and equilibrium constant, K.  Is the reaction…

A: In an electrochemical cell, two electrodes are used. One is an anode and the other is a cathode. The…

Q: 3. Assuming standard states for all reactants and products, determine the spontaneous direction of…

A: The reactions given are, 1) Cu + 2 HCl → CuCl2 + H2  2) Ag + FeCl3 → FeCl2 + AgCl

Q: Calculate E° for each of the following reactions, and tell which are spontaneous under…

A: Given Reaction; a) 2Fe2+(aq) + Pb2+(aq) →2Fe3+(aq) + Pb(s)       oxidation (anode) : Fe2+ →Fe3+ + e-…

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: what is the relation between standard electrode potential and standard Gibb's free energy ?

A: Gibbs free energy (ΔG) gives information about the direction of the reaction. If ΔG is negative, the…

Q: d) For a thermodynamic process, when ΔΗsys > 0, and ΔSsys7, pH<7, or pH-7)

A: d) For a thermodynamic process, the expression for change in Gibbs free energy is related to change…

Q: Give the reason why it is necessary to use hydrogen as a standard to define the standard potential…

A: A standard electrode is an electrode used as a reference in electrochemical reactions and this…

Q: 1. Calculate the change in the internal energy of the system for a process in which the system…

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Q: What is the standard Gibbs free energy change and equilibrium constant when Ag+ reacts with iron to…

A: Given: Ag+ reacts with iron to form iron(II) at 25oC. To answer: Writing a balanced chemical…

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: f the potential of a galvanic cell is +1.20 V, what is the Gibbs free-energy change when one mole of…

A: Given  potential of a galvanic cell is +1.20 V when one mole of electrons is transferred in the…

Q: Calculate the equilibrium constant, K for the reaction at 298 K,Zn (s) + Cu2+(aq) ——–&gt;  Zn2+(aq)…

A: Equilibrium constant may be defined as the ratio of the multiplication of the concentration of the…

Q: Consider the following reaction at 298K. Hg2+ (aq) + H2 (g) → Hg (1) + 2 H* (aq) Which of the…

A: We have to predict the correct statement

Q: Calculate AG°, in kJ, for the reaction: CIO, (aq) + 6 H*(aq) +3 Pb(s) → CI(aq) + 3 Pb2*(aq) + 3…

A: The change in standard Gibbs free energy (∆Go) for a cell reaction is expressed as: ∆Go=-nFEcello…

Q: Consider the following reaction at 298K. Hg2+ (aq) + Ni(s)→→→→→ Hg(l) + Ni²+ (aq) The standard Gibbs…

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Q: Observe this cell at room temperature: Co(s) + Fe2+(aq.) (1.94M) ⟶ Co2+(aq.) (0.15M) + Fe (s) Is…

A: The spontaneity of any reaction can be calculated by determining the value of the electrochemical…

Batteries

A battery is simply an electrochemical cell or group of cells that generate electric current. Batteries are the devices that generate current using redox reactions. These reactions proceed by the transfer of electrons. An ideal battery or cell should produce a constant voltage. A battery should actually be light in weight.