When copper is purified using an electrochemical cell, which electrode has the pure copper and which electrode has the impure copper? Explain how gold is obtained from this process.

Q: 6 The graphite anodes have to be replaced regularly. Why is this? 7 Why is it so much more…

A: Bauxite is a sedimentary rock and it is the ore of Aluminum. The chemical composition of bauxite is…

Q: When a strip of Mn is placed in a solution of Cr(NO3)3 , a deposit of chromium metal forms and…

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Q: 1. For an electrochemical copper reduction reaction at 25°C and 101 kPa, calculate (a) the Gibbs…

A: The electrochemical cell is composed of cathode and anode. The reaction at cathode of the cell is…

Q: In the equation below, what chemical process did copper undergo? oxidized or reduced __________…

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Q: >Name three advantages of making metal components from the powder metallurgical process.

A: The important three advantages of Powder metallurgy are given below.

Q: Elemental gold is being recovered by electrodeposition from a solution with tiny amounts of Au(III).…

A: The electrode position uses electrical current to deposit a desired metal on any surface. The amount…

Q: A. Determine the oxidation state of the metal ion in  [Fe(CN)6]4−. B. Determine the coordination…

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Q: Most of the metals possess a face-centered crystal structure. Which of the following statements is…

A: Given,  Most of the metals possess a face-centered crystal structure. Which of the following…

Q: Which of the following descriptions is true for the cell below? Zn(s) | Zn2+ (aq) || Cu²*(aq) |…

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Q: Use the table 'Standard Reduction Potentials' located in the "Tables', to predict if a reaction will…

A: The reactants given are Ni metal and Cr3+ solution.

Q: A concentration cell similar to the one shown is composed of two Cu electrodes and solutions of…

A: Electrochemical cells are those which converts the chemical energy into the electrical energy. They…

Q: Explain if coarse grain steel can be carburized?

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Q: Ores contain minerals and gangue. Describe the difference between a mineral and gangue.

A: A naturally occurring inorganic substance that has a definite composition and formula is called as…

Q: What is the coordination number of a metal ion in a complexion? How does it differ from oxidation…

A: Coordination number is defined as the number of the ligands which are immediately surrounded or…

Q: Describe how Aluminium is extracted from its ore by electrochemical process? showing cell…

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Q: What are biochemical roles of iron,sodium and copper?

A: Given elements,        Iron, sodium and copper

Q: The ore alvite often has a formula: (Hf, Th, Zr)SiO4.xH2 Suggest why Thorium would be an…

A: CONCEPTIsostructural: Isostructural crystals are those that have similar chemical structure , not…

Q: What factors determine which reducing agent is selected for producing a specific metal?

A: The reactions in which oxidation and reduction happen simultaneously are called redox reactions.…

Q: What would you use to prove that copper is reduced in the following reaction? Fe) + CuSO4(q) →…

A: Given reaction: Fe(s) + CuSO4 (aq) → FeSO4 (aq) + Cu(s) We have to prove why copper is reduced in…

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

A: Faraday law of electrolysis      M = AnF×I×T            where,        M = mass of metal deposited…

Q: On what principle is the method of zone refining of metals based?

A: In nature,metals are not found in pure form . They exist in the form of compounds called ores.Metals…

Q: The metals Mg and Al, like most metals in groups 1A, 2A, and 3A of the periodic table, cannot be…

A: Less-reactive metal such as iron may be extracted by reduction with carbon or carbon monoxide. The…

Q: What is chrome plating or electroplating? Briefly explain how this process works.

A: The chrome plating can provide corrosion resistance and helps in easing the cleaning procedures. It…

Q: The lustre of a metal is due to:(a) its high density(b) its high polishing(c) its chemical…

A: Metallic lustre is due to the mobile electrons present in metals which when de-excites releases…

Q: (a) Write the principle of electrolytic refining.(b) Why does copper obtained in the extraction from…

A: Write the principle of electrolytic refining.

Q: What process is used commercially to make nitric acid? O Ostwald process Downs cell Water gas shift…

A: We will discuss all the processes in option to answer this question.

Q: Use the table 'Standard Reduction Potentials' located in the 'Tables', to predict if a reaction will…

A: The standard reduction potential values to be used are: Cr3+(aq) + 3e-   ----> Cr(s) ; Eo = -…

Q: Chrome is plated from solutions of chromium(III) ions. If a particular application requires 13.7g of…

A: Given : Mass of Cr produced = 13.7 g And time = 90 min = 90 X 60 = 5400 s…

Q: What process is used to separate silver from its ores? O Hydrometallurgy Downs cell O Haber- Bosch…

A: Answer: Downs cell process is used for the production of Sodium metal. Haber-Bosch process is used…

Q: What would you use to prove that copper is reduced in the following reaction? Fe) + CuSO 4(aq) →…

A: Fe + CuSO4 (aq) → FeSO4 (aq) + Cu(s) The type of reaction is a displacement reaction. In this…

Q: Where is the final purification of iron and the production of various forms of steel carried out?…

A: To determine: Where is the final purification of iron and the production of various forms of steel…

Q: Assign the oxidation number of the chrome in Cr₂(SO4)3 a. O b. -0.5 C. +3 d. -1

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Q: Why is it important to use an inert atmosphere to surround the metal when arc-melting titanium?

A: Since high temperature and the flow of electrons would cause the metal to oxidize in a normal…

Q: Which among these metals does not react with the environment? a. Au b. Mg c. Zn d. Fe

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Q: In a copper-plating experiment, the experimental amount of mass of copper deposited is 2.0 grams.…

A: Given,  Experimental amount of mass of Cu deposited = 2.0 g  Amount of current = I = 1.5 A  Time = t…

Q: Mass determination by electroplating. What mass of copper metal is deposited if a 5.12 A current is…

A: Electrolysis is a process in which the chemical energy is converted to electrical energy. The amount…

Q: Which metals are found in carboy steel?

A: Steel is an alloy. Alloy is a mixture of two or more metals. The alloy has different properties than…

Q: Which metals are found in carbaloy steel?

A: Given,Carbaloy steel

Q: What is the basic principle of zone refining of metals?

A: In nature,metals are not found in pure form . They exist in the form of compounds called ores.Metals…

Q: Which metals are found in Monel steel?

A: Monel steel is an alloy. This alloy is mainly composed of nickel (Ni) and copper (Cu) which is 72%…

Q: Explain about passivation in metals

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Q: why Si-Al-rich minerals are found nearer or at the surface while Fe-Mg-rich minerals are not

A: Si - Al - rich minerals are minerals that contains silicon and aluminium, whereas Fe-Mg- rich…