) – Extraction of metals Explain as fully as you can the need for different methods of extraction. Your account should include sufficient details of extraction processes to support your explanation of the need for different extraction methods for different metals. With references

) – Extraction of metals Explain as fully as you can the need for different methods of extraction. Your account should include sufficient details of extraction processes to support your explanation of the need for different extraction methods for different metals. With references

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter12: Gravimetric Methods Of Analysis

Section: Chapter Questions

Problem 12.25QAP

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Extraction of metals Copy and complete the table below. You are not expected to give details of the methods of extraction in the table. Construct full and ionic equations for the reactions by which metals are extracted. Explain the need for different methods of extraction. Metal Main method(s) of extraction Chemical equation(s) for the process(es) involved (Any redox reactions should be highlighted.) Zinc 1. Roasting zinc sulfide, followed by leaching and the electrolysis of aqueous zinc sulfate(VI) 2 ZnS + 4 O2 → 2 ZnO + 2 SO3 ZnO + SO3 → ZnSO4 Zn2+ + 2 e- → Zn 2. Roasting zinc sulfide, followed by heating the resulting zinc oxide with coke (which reacts with a limited supply of oxygen to form carbon monoxide) 2 ZnS + 3 O2 → 2 ZnO + 2 SO2 ZnO + CO → Zn + CO2 Aluminium Copper Iron Magnesium Explain as fully as you can the need for different methods of extraction. Your account should include sufficient details of extraction processes to support your…
X ray films consist of a flexible plastic base coated in a gel that contains light sensitive silver halide crystals (i.e. silver bromide and silver chloride). these films are exposed to X ray radiation to produce images of the inside of a subject. Once the films are no longer needed, it is common practice to recycle the film to recover the silver. This process is done by shutting the film and placing it in a large cyanide solution bath. The silver is precipitated out as silver cyanide. a. What can you conclude about the water solubility of silver cyanide? b. Using the knowledge of limiting reactants, how can the process of be optimized to ensure that the maximum amount of silver is recovered?
Hydrogen peroxide solutions can easily be decomposed by dust, trace amounts of metals or light. It istherefore necessary to periodically determine the purity of the peroxide solutions.This can be done via a redox titration as follows: The density of a particular surgical grade hydrogen peroxide solution is 1.11g.cm-3. Exactly 10 mL of this solution was pipetted and quantitatively transferred, along with a sufficientamount of a dilute sulphuric acid solution, into a 250.00 mL volumetric flask and made up to the mark. A 25.00 mL portion of this diluted solution is pipetted into a conical flask, and titrated with a0.372 M KMnO4 solution. The endpoint of the titration is determined when the colourless solution in the conical flask turns apersistent bright pink due to the presence of excess permanganate ions. The average titration value is 26.20 mL of the KMnO4 solution 1.Determine the percentage of the hydrogen peroxide in the solution sample.2. Naturally occurring manganese…
When jump-starting a car with a dead battery, the ground jumper should be attached to a remote part of the engine block. Why?
(Last Day Promotio... Kronos Worktorce... Maame Acheampo... MIDTERM M [Review Topics] [References] Use the References to access important values if needed for this question. How many grams of Ag,CO3 will precipitate when excess Na,CO3 solution is added to 77.0 mL of 0.690 M AGNO, solution? 2AGNO3(aq) + Na,CO3(aq) Ag,CO3(s) + 2NAN03(aq) + 2NaNO3(aq) Submit Answer Retry Entire Group 9 more group attempts remaining
For a 50ml beaker, 0.4532g of pure iron III oxide was weighed, to which 1 ml of a concentrated hydrochloric acid solution was added and then 20 ml of deionized water was added to the beaker. After mixing, the resulting solution was transferred to a 50.00 ml flask and the volume was made up with deionized water. Then 15ml of this solution into a second beaker to which 10ml of an iron iii chloride solution of 0.200 M concentration was added. Calculate the final concentration of the iron iii cation solution expressed in mol/L and in g/L, considering that the volumes are additive.
1. Titration of 0.485g sample by the Mohr method required 38.8mL of standard 0.1060 M AgNO3 solution. Calculate the percentage of chloride in the sample.
Enter a net ionic equation for the reaction of dilute sulfuric acid with iron. (Assume that sulfuric acid acts as a diprotic acid and that an iron(II) compound is formed.) Express your answer as a balanced net ionic equation. Identify all of the phases in your answer.
8.25 g of o samplo of iron ora iron (m) oxido, Fo0:] wore dissolvod in concentratod hydrochlorC acid and the solution diutod to 250 ml 25.0 ml of this solution was roduced to form a solution of iron() ions. This solution of iron (1) ions roquired 264 mi of a00200 M potassium dichromato(vi) solution for completo oxidation back to iron(i) ions. The mass parcontogo of the ron in the ora is x(Fo=55.845 g/mal). CrO+6Fo+14H 2Cr+ GFe"+7H;0 Experiment 3: Neutrolization Titration if an unknown samplo of HPO was titratod with a10 M standard solution of NaOH using phonoiphthaloin indicator. O0 mt of NOOH was noodod to roach the ond point. Tha mass of HyPO4 in this sample is 98.0 g/mol) g (Molor moss of HyPOA