Using dimensional analysis, solve the following. How many many grams of Au may be deposited from a solution of HAuCl4 containing Au3+ using a current of 1.000 amperes (A) over 10.00 minutes.  Given 1 mol Au = 196.97 g Au For the 3+ oxidation state of gold (Au3+): 1 mol Au - 3 mol electrons (exact) 1 mol electrons = 96485 coulombs

Q: An unknown metal M forms a soluble compound, M(NO3)3. A solution of M(NO3)3 is electrolyzed. When a…

A: The deposition is M+3 (aq) + 3e– ------> M (s)Number of moles of electrons = 3 × number of moles…

Q: Chromium can be electroplated from aqueous potassium dichromate, with the reduction shown below. If…

A: Given data Current (i) = 6 A Voltage (v) = 4.5 V Volume of K2Cr2O7 = 215 mL Concentration of K2Cr2O7…

Q: Consider the following pairs of reactions: Fe2+ (aq) + 2 e- → Fe (s) E° = – 0.44 V Au3+ (aq) + 3…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subpartsfor…

Q: Half-reaction E° (V) Cr3+ (aq) + 3e → Cr (s) |-0.74 Fe2+ (aq) + 2e –→ Fe (s) |-0.440 Fe3+ (aq) + e →…

A: The reactions in which E˚cell is positive or ∆G˚ is negative is spontaneous. 1) The given reaction…

Q: Consider the galvanic cell based on the following half-reactions. Ag+ + e → Ag Cd2+ + 2 e Cd (a)…

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Q: How long must a current of 20.0 amps be applied to a solution of CrCl3 to produce 175 g of Cr (s)…

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Q: How long (in hours) must a current of 4.61 amps be passed to produce 79.5 g of copper metal from a…

A: Given:: Current i= 4.61 A  Mass of Cu = 79.5 g  Molar mass of Cu= 63.55 g mol-1 Time t= ?

Q: ii) How many amperes of current needs to be passed through molten Sodium chloride (NaCl) to produce…

A: Use the first law of Faraday.

Q: 4. A metallurgist wants to gold-plate a thin sheet with the following dimensions: 1.5 in x 8.5 in x…

A: Given: The dimension of thin sheet = 1.5 in x 8.5 in x 0.0012 in The thickness of the sheet = 0.0020…

Q: What volumes of H₂(g) and O₂(g) at STP are produced from the electrolysis of water by a current of…

A: Given ,

Q: How many grams of X (MW = 157.49 g/mol)(in g) will be deposited on a cathode in 2.11 h by a current…

A: Faradays First Electrolysis Law provides that the amount of reaction taking place on the basis of…

Q: How many grams of iron metal are plated out when a constant current of 8.50 A is passed through…

A: We have 8.5 A of current, passed for 50 minutes, we have to calculate the mass of iron metal…

Q: The free energy change for the following reaction at 25 °C, when [Hg2+] = 1.11 M and [H+] =…

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Q: Half-reaction E0 (V) Cr3+(aq) + 3e- → Cr(s) -0.74 Fe2+(aq) + 2e- → Fe(s) -0.440 Fe3+(aq) + e-…

A: Given, reduction potentials of  Sn4+ to Sn2+ : Sn4+(aq) + 2e- → Sn2+(aq)      +0.154 Reduction…

Q: A 0.04 M sulfuric acid solution was electrolyzed using copper electrodes. A constant current of 4.44…

A: The production of hydrogen occurs as follows: H+ + e-  --> 1/2 H2 96485 C of charge produces =…

Q: A galvanic cell is prepared according to the redox reaction shown below. A voltmeter connected to…

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Q: A particular galvanic cell has a standard cell potential of Eocell = 0.62 V. If the Eo of the…

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Q: Calculate Kp for calcium sulfate, CaSO4, given that the cell potential at 25 °C for the following…

A: Solubility product is calculated for sparingly soluble salts. These salts do not dissolve in the…