What is the concentration of Pb when the cell potential falls to 0.360 V ? 2+ Express your answers using three significant figures. ? [Pb*] = Submit Request Answer

Q: 8. What mass of silver can be plated onto an object in 33.5 minutes at 8.70 A of current?…

A: According to Faraday's 1st law, w = Z I T      where Z is chemical equivalence which is equals to…

Q: (c) SHE) E (V vs Consider the mixed potential diagram shown in Figure 1. Determine corrosion…

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Q: Solving time of electrolytic process. How long will it take for 1.25 L of a 1.0 M CuSO4 solution…

A: Given data contains, Volume of CuSO4 is 1.25L. Molarity of CuSO4 is 1.0M. Current passed is 3A.…

Q: A silver wire is dipped into a silver nitrate solution. A potential of 0.450 V was measured against…

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Q: 375.m2 Solution of Nace was electrolyzed for 3.10 min. if the PH the pH at the find Solution was…

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Q: 3. A pH electrode system is calibrated with standard buffer solutions, with the following voltages…

A: Solution- Data Given- pH 4.01=111 mV, pH= 7.00 = -55 mV, pH 10.01= -215 mV.

Q: Question one on the photo

A: Given information: Concentration of Cu2+ ions = 0.0010 M Temperature = 258 ℃

Q: 5. An analyst at Procter & Gamble quality control department received a sample of toothpaste to…

A: a) To determine the linear range in the graph.

Q: at a temperature of 25 ° C the galvanic element Pt | ClO3- 0,001M, Cl- 0,01M pH = 3 || Mn2 + 0.0001M…

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Q: Au3+(aq) + 3e- --> Au(s)

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Q: Calculate the unknown concentration of Ag+ if the potential of the following concentration cell is…

A: The unknown concentration is calculated below.  Given  Ecell = 300 mV = 300*10-3 V

Q: How many milligrams of primary cathodic material is produced if aqueous FeCl3 solution is…

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Q: What is the concentration of Pb²+ when the cell potential falls to 0.370 V ? Express your answers…

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Q: A pH meter is calibrated using a pH 4.00 buffer with 174.48 mV, pH 7.00 with 0 mV and pH 10.0 buffer…

A: Given data: pH  E (mV) 4 174.48 7 0 10 -174.48 To determine: The Molar concentration of…

Q: In an electrolytic cell for aqueous KI solution, what is the effect KI concentration?

A: As you prolong time of electrolysis, concentration of metal ion in the solution goes down (assuming…

Q: E° (V) Au+ + 3e - Au 1.50 Mg +2e Mg -2.37 Calculate the standard potential for this cell. V This…

A: Ans 12.02*10-2M

Q: The equilibrium constant, Kc, was found to be 4.1 x108 at 25°C for the following reaction, 2X(s) +…

A: At equilibrium Ecell = 0. And Q = Kc . We can calculate the E°cell  using the nearst equation.

Q: A 295-mL solution of NaCl was electrolyzed for 8.70 min. If the pH of the final solution was 12.05,…

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Q: The emf of the cell Pt | H2 (1 bar) | HCl (aq) | AgCl (s) | Ag was found to be 0.517 V at 25oC.…

A: Given data,Pressure of H2=1 barEmf=0.517V The EMF of a cell is given by Nernst equation,…

Q: Determine the current (amps) necessary to deposit 12 grams of a metal Tr during electrolysis of Tr2+…

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Q: What is the initial cell potential? Express your answer using two decimal places. HA ? Ecell =…

A: We have to find the E cell of given reaction

Q: Calculate the emf of the following concentration cell:   Mg(s) | Mg2+(0.38 M) || Mg2+(0.52 M) |…

A: The cell given is, => Mg(s) | Mg2+(0.38 M) || Mg2+(0.52 M) | Mg(s) In the above cell, the…

Q: A concentration cell consists of two Ni/Ni²+ electrodes. One electrode contains 0.15 M Ni²+ and the…

A: we have to write the overall redox reaction for the cell

Q: What current strength in ampere is required to deposit 500mg of Ni+2 from a Ni+2 playing cell of an…

A: Recall reaction for deposition of Ni from Ni+2         Ni+2+2e→Ni Recall Faraday's combined law…

Q: How many grams of X (MW 54.70 g/mol)(in g) will be deposited on a cathode in 4.53 h by a current of…

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Q: Ascorbic acid (vitamin C) in a 50.0-mL sample of orange juice was analyzed by an electrochemical…

A: Given: Initial Volume of juice(ascorbic acid) Vi = 50 mL Volume of Standard ascorbic acid solution…

Q: The electromotive force of the half cells at 25 čs Ag / A5 Ag / Ag Br 0-8 V -0.071V Solubility…

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Q: Calculate the standard cell potential produced by a galvanic cell consisting of a sodium electrode…

A: Oxidation is the process that involved the loss of electrons and oxidized to cation.  Hence when a…

Q: A current of 5.739 A is applied to an unknown metal nitrate solution, M(NO3)2, for 60.0 minutes. M2+…

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Q: Standard Potentials 3.) Example: Calculate E°, and AG° for the following reaction: 4C03+ + 2H2O…

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Q: Calculate the concentration of an unknown solution that produced a current of 4.78 microA. The…

A: As given that unknown solution produced a current of 4.78 micro A.Since there is a relationship…

Q: If you have the reaction Fe3+ + 3e- -> Fe, how many grams of Fe will result if you apply a current…

A: Faradays first  law of electrolysis , the amount of substance  deposited at cathode   is directly…

Q: The electromotive force f the half cells at 25 čs Ag / Ag Ag/ Ag Br 0-8V -0.071V calculate:…

A: Given: Ag/Ag+ = -0.8 V,   Ag/AgBr = -0.071 V Efficiency constant = 0.9 Two half reactions for the…

Q: 1. Given below are the standard electrode E+1.33V A: Cr0,+14H+6e 2Cr +7 H;Om: B: Cu"+ 2e Cu;…

A: Electrochemistry is the branch of chemistry which studies the change of chemical energy into…

Q: estion 8 Copper is electroplated from a CuSO4 solution. A constant current of 4.57 A is applied by…

A: Given:: Mass of Cu = 1.198 g molar mass of Cu = 63.546 g mol-1 Current = 4.57 A Time (t) in minute =…

Q: 4. The Na* concentration of a solution was determined by measurements with a sodium ion-selective…

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Q: Ascorbic acid (Vitamin C) in a 50.0mL sample of orange juice was analyzed by an electrochemical…

A: Given:Initial Volume of juice(ascorbic acid) Vi = 50 mLVolume of Standard ascorbic acid solution…

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: in this question, the amount of weight given is 0.369 g, and time is given 25.0 min  current is…

Q: The F− concentration of a solution was determined by measurements with a liquidmembrane electrode.…

A: pF for the sample has to be given,

Q: Enter your answer in the provided box. Calculate the emf of the following concentration cell: Mg(s)…

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Q: What is the electrode potential on the SCE scale when this electrode potential was measured to be -…

A: 0.045 V must be subtracted from electrode potential values obtained with an Ag/AgCl as reference…

Q: In a standard hydrogen electrode: A) delta G°<0 B) delta G°>0 C) delta G°=0?

A: C) delta G°=0

Q: Q. 6. Referring to the following table, if an electrochemical cell is composed of pure nickel and…

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Q: 2. Ate Shawol and Concertina performed electrolysis to determine the identity of an unknown metal X.…

A: we have to find the unknown metal X from the given values

Q: Calculate the ff: 1. volume at equivalence point: 45.45 mL 2. cell potential at equivalence point:…

A: The above question can be calculated using the Nernst equation where  E is the reduction of…

Q: A 50.00 ml. sample of phenol cleaning solution was analyzed by reaction of phenol with Br; The Bry 0…

A: The balanced reaction taking place is given as, Given: Volume of phenol sample = 50.00 mL. Current…

Q: Al | AIS (1.00 M) || Pb²+ (1.00 M) | Pb Calculate the cell potential after the reaction has operated…

A: Here we have to determine the cell potential of the following given Galvanic cell when the cell…

Q: 3 points Save Answer Consider the following reaction with vanadium and iron: 2 Fe²+ (aq) + √²+ (aq)…

A: Fe3+(aq) + e- -----&gt; Fe2+.    E° = +0.77 V V2+.  + 2e- -----&gt; V                E° = -0.49 V

Q: 5. If the Ksp for a cell is 1.8x10-10 what is the cell voltage when all the ionic species are 0.01…

A: The detailed solution is shown below. As, the particular species are not mentioned we calculated the…