Which method of concentration of an ore is preferred in the following cases and why?(1) The ore has higher density particles mixed with a large bulk of low densityimpurities(2) The ore consists of copper sulphide intermixed with clay particles Give an example of amalgam

Q: Please write a balanced formula for U(VI) (as uraninite; UO2) using Mn2+ as a reductant for U(VI)…

A:

Q: please write the equation to follow compounds and could you please show me how do you get it?

A: The solution is given below -

Q: Compare the solubility of ferrihydrite (Fe(OH)3) and goethite (FeOOH), with dissolution reactions…

A: Ferrihydrite (Fe(OH)3): Fe(OH)3 + 3 H+ →Fe3+ + 3 OH- + 3 H+Let s1 be the solubility of…

Q: What is the % of Cr in a sample of chrome-iron ore

A:

Q: The red color of ruby is due to the presence of Cr(III) ions at octahedral sites in the close-packed…

A: The atomic number of Cr is 24 The electronic configuration of Cr is [Ar]3d54s1

Q: A sample of steel weighing 2.00 g is analyzed for Cr (AW 52.0). The Cr is oxidized into chromate…

A:

Q: 24. (a) How many picomoles of Ca are in 0.0100 g of wollastonite (Ca2Si2O6)? (b) How many picograms…

A: a) Given, mass of wollastonite (Ca2Si2O6) = 0.0100 g  molar mass of wollastonite (Ca2Si2O6) =…

Q: The mineral magnetite has the formula Fe3O4 and has an inverse spinel structure. In the unit cell,…

A: The structure of a mineral magnetite having a formula Fe3O4 is given to have an inverse spinel…

Q: lon glve - produce an alloy phase consisting of Fe,C and Mn,C only. An amount of Cao hich is equal…

A:

Q: What does the following equation represent? CaCO3 + 2H* = Ca2+ + H20 + CO2 Dissolution of magnesite…

A:

Q: What does the following equation represent? 14FE3+ + FeS2 (s) + 8H20 = 15FE2+ + 2S042 + 16H*…

A: The balanced reaction given is,

Q: 1. A sample of iron ore weighing 0.6428 g is dissolved in acid The iron is reduced to Fe* and…

A: Soln  M_0.6428

Q: The magnetic susceptibility, lefi, of a sample of solid K3COF, at room temperature as measured using…

A: The answer is attached below-

Q: Write a complete and balanced redox equation for the synthesis of the coordination compound. Use…

A: here we are required to write the complete balanced redox reaction for the synthesis of iron(III)…

Q: A complexes of the formula (Co(en),CI]CI prepared by the following procedure Dissolve 40 g of COCL,…

A: It is given that 40 g of COCl2.6H2O is dissolved in 125 mL of water and 16 g of en is dissolved in…

Q: Consider Fe2+ and Fe3+. Aqueous iron in equilibrium with each mineral at pH 5 for FeO (wustite…

A: Two reactions to be considered are:   FeO (s) + 2 H+ (aq) ↔  Fe2+ (aq) + H2O (l)…

Q: balance the reaction in acidic soln VO₂+ + Zn ➖➖➖➖➖ > VO+² + Zn+²

A: To balance this overall reaction we will first write oxidation half and reduction half reaction and…

Q: Match each of the following transition metals to the type of method used to isolate it fro its ore.…

A: The metals are isolated from their ores by using various methods like calcination, roasting, etc.…

Q: What are the correct coordination number of diacetyacetonato zinc(II) and…

A: By making structure of these complex compounds we can determine its coordination number.

Q: Previous records had shown that to prevent acute toxicity to organisms, the maximum mass of CdSO4…

A:

Q: The final step in the smelting of FeCuS₂ is Cu₂S(s) +2Cu₂O(s) →6Cu(l) +SO₂(g)(a) Give the…

A: Redox reactions are the combination of reduction and oxidation reactions. The type of reaction in…

Q: Describe the preparation of KMn04 from pyrolusite ore (MnO4). How does the acidified permanganate…

A: The reactions in which one species is oxidized and other species is reduced are known as redox…

Q: This EDTA solution is used to analyze a piece of 0.0630 g of metal alloy containing Sn and Cu that…

A: This question is based on estimation of composition of alloy by using EDTA titrations.  In the given…

Q: Give reasons :(i) Zn is not regarded as a transition element.(ii) Cr2+ is a strong reducing agent.

A: (i) Zn belongs too d block but not considered as transition elements because it contains completely…

Q: Assign reasons for the following: (i) In the series Sc (Z = 21) to Zn (Z = 30), the enthalpy of…

A:

Q: The pyrite (iron sulfide) roasting process is carried out following the next reaction [FeS2 (s) +…

A:

Q: Write the reactions involved in the following processes: (i) Leaching of bauxite ore to prepare pure…

A: Given processes, (i) Leaching of bauxite ore to prepare pure alumina. (ii) Refining of zirconium by…

Q: Which of the following is FALSE about ethylenediaminetetraacetic acid (EDTA)?   It is a monodentate…

A: Which one of the following is correct

Q: How many cubic feet of air at a pressure of 760 torr and 0 °C is required per ton of Fe2O3 to…

A:

Q: A solution of sodium thiosulfate was standardized by dissolving 0.2450 g of KIO3 (214.00 g/mol) in…

A:

Q: Calculate the Ksp for the slightly soluble salt Ce(IO3)4, if at equlibrium, the salt has measured…

A: The solubility equilibrium for the slightly soluble salt Ce(IO3)4:Now,

Q: Using Table 22.1, predict the structure of each of the fol- lowing silicate minerals (network,…

A: Following structures are

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: Calculate the copper activity in an aqueous 0.12 M CuCl2 solution.

A:

Q: What is the mass percent of iron in each of the following iron ores: Fe₂O₃, Fe₃O₄, FeS₂?

A: Mass percent of an element is given by, Mass % =mass of elementTotal mass(100)

Q: Calculate the nominal concentration of each of the ions in the following minerals in aqueous…

A: The dissociation of Phosgenite (PbCl)2CO3 is shown as,

Q: Can calcium and barium be separated by precipitation with sulfate?  (Ksp CaSO4 2.4x10¯⁵, Ksp BaSO4…

A: Calcium (Ca) and Barium (Ba) can be separated by precipitation with sulfate (SO42-). The solubility…

Q: Estimate how much CuSO4*5H2O. you should start with to prepare approximately 6 grams of the copper…

A: Number of moles of copper ammine complex can be calculated as,

Q: (i) Indicate the principle behind the method used for the refining of zinc.(ii) What is the role of…

A: The process of extraction of metals ( in pure form) from minerals is termed metallurgy. Minerals may…

Q: Write the complete chemical equation of leaching Cuo in acidic solution which produces Cu²* ions.…

A: Leaching CuO in acidic solution which produces Cu2+ ions. We have to write the complete chemical…

Refining of Crude Metal

Metallurgy could be defined as a technique by which metals can be extracted in their pure nature. Extractive metallurgy directs with the route of eradicating the valuable metals from ores and purifying the extracted metals to pure nature. In hydrometallurgy, the metal extraction’s from their ores is done using an aqueous solution. In the pyrometallurgical process, high temperatures are employed to initiate the reactions between gases, molten metals, and solids. In electrometallurgy, the technique is carried in an electrolytic cell.