Use half-reaction potentials to predict whether the following reaction are spontaneous or non-spontaneous in aqueous solutions. 2 H₂S (g) + O2(g) 2 H2O) +2 S(s)
Q: A certain metal M forms a soluble nitrate salt M(NO. t M(NO3)2. Suppose the left half cell of a…
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Q: A certain metal M forms a soluble nitrate salt M (NO3)2 Suppose the left half cell of a galvanic…
A: The electrode and the electrolytes are the same on both compartments of the cell. They differ only…
Q: The free energy change for the following reaction at 25 °C, when [Cu2+] = 1.11 M and [Cr3+] =…
A: The considered reaction is, 3 Cu2++ 2 Cr(s) →3 Cu (s) + 2 Cr3+
Q: How many hours would it take to electroplate 16.0 grams of magnesium if a constant current of 8.2…
A: For the first question, we have to find the time in hours that are required to electroplate 16.0…
Q: For the galvanic (voltaic) cell Fe(s) + Mn²+ (aq) → Fe²+ (aq) + Mn(s) (E° = 0.77 V at 25 °C), what…
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Q: Calculate ΔG˚, in kJ, for the following reaction at 25˚C. 3 Cu(s) 2 NO3-(aq) + 8 H+(aq) → 3…
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Q: calculate the equilibrium constant, K, at 298 K for the reaction. Co (s) + 2 H* (aq) → H2 (g) + Co2+…
A: The reaction taking place is as follows: ‘Co’ is undergoing oxidation from 0 to +2 oxidation state…
Q: The free energy change for the following reaction at 25 °C, when [H+] = 1.15 M and [Co²+] = 0.00897…
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Q: me standard The equilibrium constant K at 25.0 °C. • The cell potential under standard conditions E…
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Q: In the electrolysis of a 200 mL metal experiment, 0.0434 grams of cathode is applied when a current…
A: Given: weight of metal(w) = 0.0434 Current(I) = 0.50 A Time(t) = 5 min = 300 sec Valency factor =…
Q: From the thermodynamic data, ΔSsys for the given fuel cell reaction is negative but the reaction is…
A: The reason the negative entropy of the system can be justified as spontaneous has to be explained.…
Q: A certain metal M forms a soluble nitrate salt M M(NO3)₂. Suppose the left half cell of a galvanic…
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Q: A voltaic cell was build upon the following redox reaction: 4 Ag (s) + O2 (g) + 4 H+ (aq) →4 Ag (s)…
A: if ∆G° is negative the reaction is spontaneous. if ∆G° is positive the reaction is non spontaneous.
Q: t M₂(SO4)3. Suppose the left half cell of a galvanic cell apparatus is filled with a 50.0 mM…
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Q: Determine the equilibrium constant, Keq, at 25oC for the reaction: Au3+(aq) + Li(s) → Au(s) +…
A: The reaction given is Au3+(aq) + Li(s) → Au(s) + Li+(aq)
Q: A certain metal M forms a soluble nitrate salt M(NO3)3. Suppose the left half cell of a galvanic…
A: A question based on electrochemical cell. A concentration cell with different concentrated M(NO3)3…
Q: Consider the hydrolysis of pure water (an electrolytic cell): Anode: 2 H2O(l ) → O2(g ) + 4…
A: Answer: For the reaction to be spontaneous, cell potential must be greater than zero because when…
Q: Zn(s) + Cu²+ (aq) → Zn²+ (aq) + Cu(s) the ion concentrations are [Cu²+] = 0.0389 M and [Zn²+] = 1.7…
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Q: A certain metal M forms a soluble nitrate salt t M(NO3)². Suppose the left half cell of a galvanic…
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Q: A student made measurements on some electrochemical cells and calculated three quantities: • The…
A: It is an example of electrochemical reaction Here we are required to find which of 3 quantities are…
Q: A certain metal M forms a soluble sulfate salt M₂(SO4)3. Suppose the left half cell of a galvanic…
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Q: Calculate the equilibrium constant at 25 °C for the following reaction from the value of AG given.…
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Q: nitrate, Ni(NO3)2 undergoes electrolysis in order to plate on a sink faucet requiring 2.00 hours…
A: Given, Time(t) = 2.0 hrs = 7200 seconds Current(i) = 2.80 amp Faraday's constant(F) = 96, 485…
Q: A certain metal M forms a soluble nitrate salt MNO3. Suppose the left half cell of a galvanic cell…
A: Electrochemical cells that have same electrolyte in two half-cells but with difference in their…
Q: Calculate the equilibrium constant at 25°C for the following reaction from the value of AG° given.…
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Q: A student made measurements on some electrochemical cells and calculated three quantities: • The…
A: The objective of the question is to check for the incorrect values in the given table.Standard EMF…
Q: A certain metal M forms a soluble nitrate salt M(NO3)2. Suppose the left half cell of a galvanic…
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Q: Consider the given reaction of mercury (II) oxide being reduced to liquid mercury. If 0.3 amperes…
A: We can calculate weight by using Farady's law of electrolysis W = EIT÷ F Where E = equilivalent…
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: Chromium can be electroplated from aqueous potassium dichromate, with the reduction shown below. If…
A: Given: Voltage = 11.6 V Current = 6.0 A mass of chromium (Cr) = 3.91 g molar mass of chromium =…
Q: The free energy change for the following reaction at 25 °C, when [Pb2+] = 1.17 M and [Ni2+] =…
A: The energy which are used in reaction to do work is known as Gibbs free energy.
Q: 2 Magnesium and lead have similar first and second ionization energies, yet their reactivity with…
A: Only part (a) is mentioned to be solve. For the other parts to be solved available data is not…
Q: The free energy change for the following reaction at 25 °C, when [Sn2+] = 1.13 M and [Ni2+] =…
A: The Gibb's free energy is given as, ∆G=-nFEcell0 where n is the number of electrons and Ecell0 is…
Q: Calculate ΔG˚, in kJ, for the following reaction at 25˚C. 3 Cu(s) 2 NO3-(aq) + 8 H+(aq) → 3…
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Q: In a certain zinc–copper cell, Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s) the ion concentrations are [Cu2+]…
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Q: certain metal M forms a soluble nitrate salt M(NO3)₂. Suppose the left half cell of a galvanic cell…
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Q: A certain metal M forms a soluble nitrate salt MNO3. Suppose the left half cell of a galvanic cell…
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Q: Calculate the standard free-energy change at 25 ∘C for the following reaction:…
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Q: A certain metal M forms a soluble sulfate salt MSO4. Suppose the left half cell of a galvanic cell…
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Q: calculate the standard reaction free energy ΔG0 for the following redox reaction. 3Zn(s) +…
A: The electrode which is having a higher reduction potential gets reduced at the cathode while the…
Q: alculate the standard potential, ?∘, for this reaction from its ΔG° value.…
A: Standard Reduction Potential - It is the difference between the reduction potential of cathode and…
Q: A certain metal M forms a soluble nitrate salt M(NO3)₂. Suppose the left half cell of a galvanic…
A: In the given Galvanic cell, the electrode is the same in both the half-cells which is the metal, M.…
Q: A certain metal M forms a soluble sulfate salt M,SO4. Suppose the left half cell of a galvanic cell…
A: When same electrodes of same material used with different concentration then the Galvanic cell is…
Q: A student made measurements on some electrochemical cells and calculated three quantities: • The…
A: For cell A, it is considered that the value for K is correct, now the values for Eo and ΔGo are…
Q: Determine the equilibrium constant at 25 ºC for the dissolution of magnesium hydroxide in acidic…
A: From given datas
Q: A certain metal M forms a soluble nitrate salt M (NO3)2. Suppose the left half cell of a galvanic…
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Q: A certain metal M forms a soluble nitrate salt M(NO3)₂. Suppose the left half cell of a galvanic…
A: In the given Galvanic cell, the electrode is the same in both the half-cells which is the metal, M.…
Q: The standard reduction potentials of lithium metal and chlorine gas are as follows: Reaction…
A: Given half cell reactions are : Li+ (aq) + 1e- ------> Li (s), E0 = -3.04 V Cl2 + 2e-…
Q: A certain metal M forms a soluble sulfate salt M₂SO4. Suppose the left half cell of a galvanic cell…
A: Given:Concentration of left galvanic cell = 4.00 M Concentration of right galvanic cell = 400 mM…
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- Calculate ΔG° for the following balanced redox reaction and determine if the reaction is spontaneous. (values are made-up) 2 Na+(aq) + 2 Cl-(aq) → 2 Na(s) + Cl2(s) Na+(aq) + e⁻ → Na(s) E° = +0.362 V Cl2(s) + 2 e⁻ → 2 Cl-(aq) E° = +0.789 V use this equation: Δ G ° = − n F E cell °A certain metal M forms a soluble sulfate salt M₂SO4. Suppose the left half cell of a galvanic cell apparatus is filled with a 2.00 M solution of M₂ SO4 and the right half cell with a 10.0 mM solution of the same substance. Electrodes made of M are dipped into both solutions and a voltmeter is connected between them. The temperature of the apparatus is held constant at 25.0 °C. left Which electrode will be positive? x10 right X Ś ? What voltage will the voltmeter show? Assume its positive lead is connected to the positive electrode. 0 Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits.The chemical reaction that causes iron to corrode in air is given by: 4Fe+3O2→2Fe2O3 in which at 298 K, ΔHorxn = −1684 kJ and ΔSorxn = −543.7 J/K At what temperature Teq do the forward and reverse corrosion reactions occur in equilibrium?
- Metallic nickel can be made by the electrolysis of molten NiCl₂. (a) What mass of Ni is formed by passing a current of 7.09 A through molten NiCl₂ for 4.70 days? The unbalanced chemical reaction representing this electrolysis is shown below. NiCl₂ → Ni + Cl₂ g of Ni is formed by this electrolysis. (b) How many minutes are needed to plate out 18.00 g of Ni from molten NiCl₂ using 6.93 A current? minutes are needed.2 A certain metal M forms a soluble nitrate salt M(NO3)₂. Suppose the left half cell of a galvanic cell apparatus is filled with a 1.00 M solution of M(NO3), and the right half cell with a 100. mM solution of the same substance. Electrodes made of M are dipped into both solutions and a voltmeter is connected between them. The temperature of the apparatus is held constant at 35.0 °C. left x10 Which electrode will be positive? right X ? What voltage will the voltmeter show? Assume its positive lead is connected to the positive electrode. 0 Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits.A certain metal M forms a soluble nitrate salt M (NO₂), Suppose the left half cell of a galvanic cell apparatus is filled with a 40.0 mM solution of M(NO), and the right half cell with a 4.00 M solution of the same substance. Electrodes made of M are dipped into both solutions and a voltmeter is connected between them. The temperature of the apparatus is held constant at 25.0 °C. Which electrode will be positive? What voltage will the voltmeter show? Assume its positive lead is connected to the positive electrode. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. O left O right 0 0.2 X Glo Ar
- A certain metal M forms a soluble nitrate salt M(NO3). Suppose the left half cell of a galvanic cell apparatus is filled with a 4.00 M solution of M(NO3), and the right half cell with a 200. mM solution of the same substance. Electrodes made of M are dipped into both solutions and a voltmeter is connected between them. The temperature of the apparatus is held constant at 30.0 °C. Which electrode will be positive? What voltage will the voltmeter show? Assume its positive lead is connected to the positive electrode. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. left ☐ x10 rightA certain metal M forms a soluble sulfate salt M, SO4. Suppose the left half cell of a galvanic cell apparatus is filled with a 250. mM solution of M,SO, and the right half cell with a 2.50 M solution of the same substance. Electrodes made of M are dipped into both solutions and a voltmeter is connected between them. The temperature of the apparatus is held constant at 35.0 °C. left Which electrode will be positive? Ox10 right ? What voltage will the voltmeter show? Assume its positive lead is connected to the positive electrode. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits.A certain metal M forms a soluble nitrate salt M(NO3)3. Suppose the left half cell of a galvanic cell apparatus is filled with a 2.00 M solution of M(NO3)3 and the right half cell with a 10.0 mM solution of the same substance. Electrodes made of M are dipped into both solutions and a voltmeter is connected between them. The temperature of the apparatus is held constant at 20.0 °C. Which electrode will be positive? What voltage will the voltmeter show? Assume its positive lead is connected to the positive electrode. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. 0 0 ○ left ☐ x10 O right ×
- Determine the equilibrium constant, Keq, at 25oC for the reaction: Au3+(aq) + Al(s) → Au(s) + Al3+(aq) Keq ← please insert your valueUsing the following standard (reduction) potential data: Br2(aq) + 2 e− → 2 Br−(aq), 1.087 V 2 I−(aq) → I2(s) + 2 e−, 0.535 VCalculate the standard free-energy change (ΔG°) for the following oxidation-reduction reaction. 2 I−(aq) + Br2(aq) → I2(s) + 2 Br−(aq) ?J(b) Calculate the equilibrium constant for this reaction at 298 K.Give Clear solution