The amount of Cd2+ in an aqueous sample was measured with a constant current coulometric technique. If a current of 53.6 mA required 178 s to reduce all of the Cd2+ to Cd what is the number of milligrams of Cd2+ in the solution?

Q: Use the potentiometric cell below: SCE || Cu(X)2+ (aq, A = 0.500 M), lig (aq, A = 0.0010 M) | Cu(s)…

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Q: (c) the copper ion concentration [Cu2+] in g/L. Consider the cathodic reaction only and assume…

A: Since you are asking for only part (c) so here is the answer of part (c) only.

Q: calculate the equilibrium constant for the reaction:

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Q: 5. Calculate the standard potential of the Redox reaction of Ni(CN) complex Ni(CN)2+2e → Ni(s) +…

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Q: Use standard reduction potentials to calculate the equilibrium constant for the reaction: 2Cu2+(aq)…

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Q: Calculate the standard potential (in V) of the following chemical reaction: 2Cu* (ac) → Cu²+ (ac) +…

A: We have to calculate the standard potential of the following reaction 2Cu+(aq) → Cu2+(aq) + Cu(s).…

Q: 2H*(aq) + Sn(s)–H2(g) + Sn²*(aq) ificant figures during intermediate calculations to avoid round off…

A: The cell reaction is: Sn + 2H+   ----->  Sn2+   +  H2 We have : E°cell = E°H+/H2   -   E°Sn2+/Sn…

Q: When the Agt concentration is 8.20 x 10-4 M, the observed cell potential at 298 K for an…

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Q: A solution containing Pt*+ is electrolyzed with a current of 4.10 A. How long will it take to plate…

A: W = E i t /F W = mass to be deposited E = equivalent Weight i = current in ampere t = time in second…

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Q: Use standard reduction potentials to calculate the equilibrium constant for the reaction: 2H+(aq) +…

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Q: Cobalt(II) ions (Co2*(aq)) react with 6 equivalents of a ligand (L) to from the complex cation…

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Q: What mass of chromium could be deposited by electrolysis of an aqueous solution of Cr₂(SO4)3 for 185…

A: mass of chromium (Cr) deposited = ?Current = 10.0 ATime = 185 min = 185 × 60 s = 11100 s1 F = 96485…

Q: Explain briefly 1. In measuring the cell potential of a galvanic cell, what does a negative voltage…

A: The answer to the following question is-

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 %

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Q: Calculate the cell potential for: Al/Al+3//Co+3,Co+2/Pt

A: Given: Al(s)​∣Al(aq)3+​∣∣CO(aq)3+​,Co(aq)2+​∣Pt(s)​Step 1: Write the general form of cell…

Q: How many grams of chromium metal will be deposited from a solution that contains Cr ions if a…

A: By faraday's law of electrolysis, m=ZIt Here m is the mass of Cr3+ in grams. Z is electrochemical…

Q: A group of students conducted a similar experiment to Part 3 (note the differences in concentration…

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Q: Use standard reduction potentials to calculate the equilibrium constant for the reaction: 2Ag+(aq) +…

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Q: Question is attached

A: E0Red (Ag+) = 0.8V   E0Oxi (Ni) = -0.25V   The expression of Nernst equation is shown below:   Ecell…

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A: In the given reaction, I2 is being reduced and Cu is being oxidised hence the half reactions are…

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Q: How many grams of chromium metal can be electroplated from a mixture containing Cr+3 ions using a…

A: 46.6 gExplanation:

Q: current of 70.9 A is applied to a 0.123 mol L-1 solution of Pt2+ how many seconds would it take to…

A: Here we know nF of charge is required to produce 1 mole of Pt (s) as the products. So we do the…

Q: From the following standard reduction potential data: Cu+ + e−-> Cu…

A: Reduction is the process of removal of oxygen or the addition of hydrogen or electron. The potential…

Q: A solution containing Pt** is electrolyzed with a current of 3.00 A. How long will it take to plate…

A: Introduction : given : Current=3 A  Volume = 0.50 L  Molarity=0.010M

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A: The two copper strip are dissolved in copper nitrate solution and the weight of the copper strip…

Q: Calculate the potential for each of the following reactions at the given concentrations: a. 2Na + Fe…

A: (a) The given reaction is, 2Na   + Fe+2 ↔ 2Na+ + Fe In this reaction, Fe+2 is reduced to Fe and Na…

Q: Consider the following cell reaction: Zn(s) + 2 H*(? M)→→Zn2+(1.00 M) + H₂(g)(1.00 atm) If the cell…

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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: A solution containing Pt*+ is electrolyzed with a current of 5.20 A. How long will it take to plate…

A: Using the formula for mass deposition.  Mass deposited = Zit/nF Where,  Z = molar mass = 195.084…

Q: A concentration cell was prepared at 25 °C; one cell compartment contained Pb(C2H3O2)2(aq) and was…

A: Since you have posted a question with ultiple sub-parts , we will solve first three sub- parts for…

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Q: The standard electrode potential for the reduction of Ni²+ to Ni is – 0.25 V. Would the potential of…

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A: Corrosion is a process in which the surface layer of metal are deteriorated by reacting with…

Q: How many grams of chromium metal will be deposited from a solution that contains Cr3+ ions if a…

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