in the metallurgy of sodium by electrolysis, why excess of CaCl2 is mixed with NaCl ?

Q: The electrolysis of T(Br3 at high temperature produces thallium metal. If a constant electrical…

A: First we have to find how much charge is required for one mol thallium. Then find how much current…

Q: What mass of aluminum will be deposited in 1.00 hours by the electrolysis of molten AlCl 3 using a…

A: Electrolysis is the process of passing direct current through an electrolyte it produces chemical…

Q: Based on standard reduction potentials, would you expect copper metal to oxidize under standard…

A: The value of E˚cell is calculated as shown below: Here, E cell is the standard potential of the…

Q: Complete and balance the following half-reactions. In each case, indicate whether the half-reaction…

A: Titanium dioxide is an oxide of titanium which has wide range of applications. It is most commonly…

Q: Copper corrodes to cuprous oxide, Cu2O, or cupric oxide, CuO, depending on environmental…

A: The oxidation state of copper in cupric oxide is to be calculated

Q: Cuag) + NO2(9) in acidic solution Сu(s) + NO3 (aq) (aq)

A:

Q: How much energy is consumed to produce 1.00 kg of magnesium by electrolysis of molten MgCl2 using a…

A: Given: Mass of magnesium = 1.00 kg Current                     = 1.5 x 103 A Voltage…

Q: 19.95 In the commercial preparation of aluminum, alu- minum oxide, Al,O3, is electrolyzed at 1000°C.…

A: Given: Mass of Al = 3.09 Kg = 3090 g Reaction at cathode:  Al+3 + 3e- → 3Al

Q: The following reactions are all similar to those of the industrial chemicals. Complete and balance…

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Q: Why does the electrolysis of an aqueous sodium chloride solu-tion produce hydrogen gas at the…

A: Electrolysis is a method of passing electric current through ionic or molten salt resulting in the…

Q: (a) What is electrolysis? (b) Are electrolysis reactions thermodynamicallyspontaneous? (c) What…

A: (a) Electrolysis means 'electric-splitting' and involves the separation of substances through an…

Q: Calculate the mass of nickel that will be deposited when a current of 2.00 A is passed through a…

A:

Q: Calculate the number of grams of aluminum produced in 1.00 h by the electrolysis of molten AlCl3 if…

A: Given: Electrical current = 10.0 A Time of electrolysis = 1.00 h.

Q: Metallic magnesium can be made by the electrolysis of molten MgCl2. (a) What mass of Mg is formed by…

A:

Q: How many grams of rhodium (Rh) can be deposited on a ring used as a cathode by electrolysis of a…

A: Rh3+  + 3e-   -----> Rh Equivalent mass of Rh , E = M/n.f = 103/3 g/eq = 34.33 g/eq Z = E/F =…

Q: What mass, in grams, of pure potassium will be produced if a current of 358.5 A is run through a…

A:

Q: Aluminum is produced from the electrolysis of aluminum oxide dissolved in molten cryolite.…

A:

Q: Calculate the mass of silver (Ag +1 ) deposited at the cathode during the electrolysis of silver…

A: Reduction → gain of electronReduction always occurs at CathodeAg++ e-  →Ag

Q: In the electrolysis of aqueous NaCl, how many grams of Cl2 are generated by a current of 3.10…

A: Formation of Cl2 from NaCl is shown below,

Q: In an alkaline medium, which elements can produce hydrogen? Zn, Si Cu, Ag Cu, N Al, C

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Q: Write a balanced equation to represent the electrolysis of molten sodium chloride. What volume of…

A: A balanced equation to represent the electrolysis of molten sodium chloride has to be given.

Q: Why is it that from nails and bolts to bridges, to roofing and framing components, countless items…

A:

Q: (4) When a metal of molar mass 207 g mol" is deposited by electrolysis, a current of 0.06 A flowing…

A: Convert the unit of time: 1 min=60 s66 min=66 min×60 s1 min=3960 s

Q: How many grams of gold can be produced when a solution of Au(OH)3 undergoes electrolysis at a…

A: Faraday's first law :-  The mass of a substance deposited at the electrode is directly proportional…

Q: Explain why different products are obtained in the electrolysis of molten ZnCl2 and in the…

A: Ionic compounds need to be molten or in the solution for electrolysis to work. This is because the…

Q: Name the following compounds and assign oxidationstates to the halogens in them: (a) Fe(ClO3)3, (b)…

A: Oxidation states of halogens: (a). Fe(ClO3)3 The oxidation state of chlorine is +5. (b). HClO2, The…

Q: Calculate the mass of aluminum produced in 1.00 hour by the electrolysis of molten AlCl3 if the…

A:

Q: Electrolysis plays an important role in the manufacture or purification of all of the following…

A: There are different type of compounds, which are synthesized by different methods -  (1) Sodium, Na…

Q: Magnesium is obtained by electrolysis of molten MgCl2. (a) Why is an aqueous solution of MgCl2 not…

A: Electrochemistry gives the relation between electrical energy and chemical changes associated with…

Q: Predict the products of the electrolysis of an aqueous solution of sodium chloride in cell using…

A: Electrolysis is a spontaneous redox process Here we are required to find the product when aqueous…

Q: In the electrolysis of aqueous NaCl, how many grams of Cl2 are generated by a current of 2.35…

A: moles of electrons  =6.2x1018 x2.35x140x60/6.022x1023 =20454 x 10-5 =0.2 Moles of electron = number…

Q: To obtain Mn2+ using Cl− as a reducing agent, should you use MnO2 or MnO−4?

A: Below attached file showing the details answer.  All the best.

Q: one of the following metals is used as oxidizing agent a. Ca b. Na c. Fe+2 d. Fe+3

A: Oxidising agent :- The oxidizing agents are those species which can oxidise other species and can…

Q: When does a SHE function as a cathode? As an anode?

A: Every electrochemical cell has a cathode and an anode. Each electrochemical cell has an oxidation…

Q: d. Calculate the value of the equilibrium constant at 298 K. e. How many grams of copper metal can…

A: All the necessary calculations have been done in the following step.

Q: In the Hall-Heroult process, a large electric current is passed through a solution of aluminum oxide…

A: we will apply the combined Faraday's law W = (Q*M )/F*n  W = weight of mass in grams Q = quantity of…

Q: Calcium metal is obtained by direct electrolysis of molten CaCl2. If a metallurgical electrolysis…

A: Electrolysis equation is: Ca2+ + 2e- ------> Ca 1 mol of Ca requires 2 mol of electron 1 mol of…

Q: Calcium metal is obtained by direct electrolysis of molten CaCl2. If a metallurgical electrolysis…

A: Calcium metal is obtained by direct electrolysis of molten CaCl2. If a metallurgical electrolysis…

Q: 4. A copper rod was purified by using it as the anode in the electrolysis of a 1.0 M copper (II)…

A: Anode is the electrode on which oxidation takes place and Cathode is the electrode where reduction…

Q: What volume of CL2 at 1 atm, 25 Co would be produced from the electrolysis of molten NaCl for 10…

A: Quantity of electricity can be calculated using the relation: Q = i × t Q = 7 Amps × 10 hr Q = 7…

Q: What mass of silver would plate onto the cathode if a current of 7.9 A flowed through the cell for…

A:

Q: How many minutes will it take to plate out 2.19 g of chromium metal from a solution of Cr3+using a…

A:

Q: In the electrolysis of aqueous NaCl, how many grams of Cl2 are generated by a current of 2.30…

A: In the electrolysis process, the grams of Chlorine gas generated is calculated using,

Q: How long (in minutes) would it take to deposit 0.67 g of copper from a solution containing Cu2+…

A:

Q: Why are active metals such as Al obtained by electrolysis using molten salts rather than aqueous…

A: Electrolysis Electrolysis is a process that helps to bring chemical reactions into electrolytes.it…