A copper penny dropped into a solution of nitric acid produces a mixture of nitrogen oxides.The following reaction describes the formation of NO, one of the products. 3Cu(s)+8H+(aq)+2NO−3​(aq)2NO(g)+3Cu2+(aq)+4H2​O(l) E°cell for this reaction is 0.620 V. What is the value of E°rxn at 300 K when [H+] = 0.100 M, [NO3–] = 0.0350 M, [Cu2+] = 0.0200 M, and the partial pressure of NO is 0.00300 atm?

Q: 3. In each of the following cells write the cell reaction, and designate which reac- tions are…

A: Spontaneity  explains  on the basis  of the sign of Gibbs free energy  change which  depends  upon…

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Q: What is the standard free energy change and equilibrium constant for the following reaction at 25…

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Q: Consider the following reaction at 298K. Cu?* (aq) + 2 Fe2* (aq) →Cu (s) + 2 Fe* (aq) Which of the…

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Q: The following half-reaction AlF63-(aq) + 3e- -->Al(s) + 6F-(aq)         °E = -2,07 V. Calculate…

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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: Consider the following reaction at 298 K. I2(s) + H2(g) 2 I(aq) + 2 H*(aq) Which of the following…

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Q: Will the following reaction occur spontaneously under standard-state conditions?…

A: Given- 2Al(s)+3Co2+(aq) ->3Co(s)+2Al3+

Q: Mercury (II) oxide is a battery used in watches. As electric current flows, it is being reduced to…

A: The mass of liquid mercury produced every half-hour is calculated as shown below. Q=I×t×60 s/1…

Q: The following reaction has an E◦ value of -0.76 V.  Calculate the ∆G◦ and tell whether the reaction…

A: The reaction given is Zn2+ (aq)  +  H2 (g)  +  2 H2O (l)  →  Zn (s)  + 2 H3O+ (aq) Given : E0 =…

Q: Using standard molar for aynamic values, Is tHIS spontaneous at 1000.°C? 3. Balance the following…

A: We need to balance the reactions using half cell reaction method. In this method the given redox…

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

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Q: For each of the following reactions at standard conditions, decide whether it occurs spontaneously…

A: a) The reaction given is Zn(s)  +  Sn2+ (aq)  →  Sn(s)  +  Zn2+ (aq) In the above reaction, the…

Q: Calculate Δ Go for a redox reaction where two electrons are transferred in the balanced equation and…

A: Given,  Standard cell potential = Eo = -0.59 V  Number of electrons transferred = n = 2 Value of…

Q: Is the following reaction spontaneous when all of the solutes are in their standard states? 4Ag°(aq)…

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Q: 6.58 The common lead-acid car battery produces a large burst of current, even at low temperatures,…

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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: Consider the reaction of chlorine with manganese dioxide: 3 Cl2(s) + 2 MnO2(s) + 8 OH(aq) →6 Cr(aq)…

A: Given-> Equilibrium constant (Keq) = 6.63 × 1047

Q: Consider the following reaction at 298K. 2 H* (aq) + Zn (s) H2 (g) + Zn²* (aq) Which of the…

A: The given reaction is, 2H+ (aq) + Zn (s) ----->H2(g) + Zn2+ (aq) Two half reactions for the given…

Q: Use the data from the redox table (appendix L in the text) to calculate equilibrium constants for…

A: Given- Reaction Ag2S (s) <=> 2 Ag(s) + S2- (aq)    Temperature = 298.15 K To find- Equilibrium…

Q: Calculate the change in the Gibbs energy for the reaction below, at 25.0 °C 2 Ca(s) + O2(g) → 2…

A: The formula for Gibbs free energy change is written as - ∆G° = ∆H° - T∆S°   Where - ∆G° = Gibbs free…

Q: For the following reaction, all of the reactants and products are in their standard stat es/standard…

A: Given: E°cell = +0.60 V

Q: Describe the relationship between the values of AG, Ksp, and the direction that a reaction will…

A: A reversible reaction have a tendency to proceed in either of the direction . If a system is not in…

Q: What is the value of potential for the spontaneous reaction that occurs as the cell operates at…

A: Electrochemical cell is device which generate electrical energy by using the chemical reactions…

Q: Electroplating is a way to coat a complex metal object with a very thin (and hence inexpensive)…

A: We have given that Current (I) = 240 mA = 0.24 A Time (t) = 55 sec Equivalent weight of silver =…

Q: NH4

A: Dear student this question is related to equilibrium concept.

Q: What is the equilibrium constant for a reaction at 25 °C. The value of AG° is -68.5 kJ/mol. O more…

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Q: Balance each reaction, calculate the net E°, and declare each reaction as being spontaneous or non-…

A: The reactions given are, a) Sn2+ (aq) + Cr (s) → Cr2+ (aq) + Sn (s)  b) Ag+ (aq) + Mn (s) → Ag (s) +…

Q: For the reaction: 2 Al(s) + 3 Pb2 (aq) 2 Al3*(aq) + 3 Pb(s) answer both questions. Pb2*(aq) + 2 e-…

A: in electrochemical cell reaction,  if standard cell  potential is positive then reaction is said to…

Q: Calculate the standard free-energy change for the reaction at 25 ∘C.. Refer to the list of standard…

A: Standard reduction potential:  E°Au+3/Au = 1.52 V  E°Zn+2/Zn = 0.76 V  Determine E° of the above…

Q: What is the equilibrium constant (K) at 25°C for the following cell reaction? Co(s) +Ni2+→Ni(s)+…

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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: One kind of battery used in watches contains mercury(II) oxide. As current flows, the mercury(II)…

A: The reaction of mercuric oxide cell. Given data: Current: 2.3 x 10-5A. Time = 1200Days. Q is the…

Q: From a consideration of the following two half reactions at 298 K. Pb2+(aq) + 2e- → Pb(s) -0.126 V…

A: Third option. C. 7.2*1010

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

A: Given reactions: Co2+(aq) + 2Ag(s) → Co(s) + 2Ag+(aq) Hg2+(aq) + Cd(s) → Hg(l) + Cd2+(aq) We have to…

Q: Consider the following reaction at 298K. 2 Cu2+ (aq) + Cd (s) →2 Cu* (aq) + Cd²+ (aq) Which of the…

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Q: calculate equilibrium constants for the following reactions. Assume 298.15 K if no temperature is…

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Q: 1- Select ALL that are always TRUE for a spontaneous process. Group of answer choices ∆H > 0 and…

A: Since we only answer one question, we’ll answer the first question. Please resubmit the question and…

Q: Given the following reactions: Anode: NO3- + 2H+ + e- --> NO2 + H2O Cathode: 2H+ + 2e- --> H2…

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Q: Consider the following reaction at 298K. 2 Ag* (aq) + Zn (s) 2 Ag (s) + Zn²* (aq) Which of the…

A: We will choose all correct option.

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: 5. Calculate the E", AG and K at 25°C for the reaction, 2Mno, + 4H* + Cl2 2Mn2+ + 2C10,+ 2H20

A: During electrochemical reaction redox reaction occur in electrolytic cell  At two different…

Q: Consider the following reaction at 298K. Co2+ (aq) + 2 Cu* (aq) → Co (s) + 2 Cu²+ (aq) Which of the…

A: The half-cell reactions are as follows:

Q: Given the half-reactions: Pb** + 2e- → Pb2*g°d =+1.210v Fe3+ + e → Fe* = +0.771 v red = +0.771 V %3D…

A:

Q: Consider the following reaction at 298K. Cd2+ (aq) + 2 Fe2+ (aq) Cd (s) + 2 Fe3+ (aq) Which of the…

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Q: Cassandra builds a galvanic cell using a zinc electrode immersed in an aqueous Zn(NO3)2 solution and…

A: Given,  zinc electrode immersed in an aqueous Zn(NO3)2 solution and an copper electrode immersed in…

Q: The equilibrium constant of the reaction shown below is 2.41x10^8 at 25 degrees Celsius: 3Ag(s) +…

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Q: Determine Keg at 25°C for the following reaction: Pb2+(aq) + Cu(s) + Cu2+{aq) + Pb(s) The…

A: The half reactions given are Subtracting reaction 2 from reaction one gives the desired reaction as…

Q: å. Calculate A for the following reaction át 298 K. ClO; (aq) + 5 Cl¯ (aq) + 6 H† (aq) → 3 Cl2 (g) +…

A: Given :

Q: What is the AG for the following reaction from the equilibrium constant at the temperature given?…

A: R = 8.314 J/K.mol , T = 900°C = 1173 K