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Jan 13, 2016· Volumetric analysis (5) A Back Titration. Here is the problem: ... Third, work out amount (mmol) excess acid remained in the volumetric flask after all the chalk had reacted. This is × 10 ... Verdigris is basic copper carbonate (CuCO 3) and it is green in colour.
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The carbonate can also be converted into the metal version of copper, which is highly valuable and serves a number of its own applications. This is achieved through a process of pulverization, sizing, conversion and electrolysis. Copper Salts: The substance can be converted into copper salts by mixing it with a stronger acid. The resulting salt ...
Copper(II) carbonate or cupric carbonate is a chemical compound with formula CuCO 3. At ambient temperatures, it is an ionic solid (a salt) consisting of copper(II) cations Cu 2+ and carbonate anions CO 2− 3. This compound is rarely encountered because it is difficult to prepare and readily reacts with water moisture from the air.
CopperAmmonia Complex . When concentrated ammonia solution (ammonium hydroxide) is added to a clear, light blue, aqueous solution of copper(II) chloride, a powdery, light blue precipitate of copper(II) hydroxide forms. Further addition of ammonia causes the copper ion to go back into solution as a deep blue ammonia complex.
Extracting copper from other ores. Copper can be extracted from nonsulphide ores by a different process involving three separate stages: Reaction of the ore (over quite a long time and on a huge scale) with a dilute acid such as dilute sulphuric acid to produce a very dilute copper(II) sulphate solution.
4. Copper can be extracted from copper(II) carbonate in the ore malachite by Step 1: reacting copper(II) carbonate with sulfuric acid to form copper(II) sulfate. CuCO₃ + H₂SO₄ → CuSO₄ + H₂O + CO₂ Step 2: using iron to displace copper from copper(II) sulfate solution CuSO₄ + Fe → Cu + FeSO₄ a) Why does iron displace copper in ...
W/S Ratio.—The mixture of ore and water in which the process of concentrating the valuable minerals is performed is always termed a constitution can be expressed by stating that it contains a certain percentage of solid particles or " solids ", but just as common a method of describing the proportion of water to ore is by expressing it as a Water/Solids or W/S ratio, the amount ...
The method used to extract copper from its ores depends on the nature of the ore. Sulfide ores such as chalcopyrite ((CuFeS_2)) are converted to copper by a different method from silicate, carbonate or sulfate ores. Chalcopyrite (also known as copper pyrites) and similar sulfide ores are the commonest ores of copper.
From the above it will be seen that the sulfide ores offer more difficulty than carbonate ores, although sulfide ores running as low as 7½ to 8 % have been assayed. If the ore is very impure, containing a great deal of copper, antimony or arsenic, as would be the case of an intimate mixture of galena with tetrahedrite, no dry method could be recommended as the results would be unsatisfactory.
There are many types of copper ore found throughout the world. Picture 4 shows the distribution of these deposits. About 80% of all copper extracted comes from sulphide ores. A typical ore contains only % to % copper. It is a measure of the value of copper that it .
1. Measure out an amount of metal carbonate ore. 2. Place the copper carbonate ore into a 250 cm3 beaker 3. Measure out exactly 25 cm3 of hydrochloric acid 4. Pour the hydrochloric acid into the beaker of copper carbonate ore, start the stop clock then swirl once 5. When the fizzing appears to slow down swirl the beaker once more to make sure ...
123 help me for copper carbonate ore practical. Class practical. Malachite is a copper ore consisting mainly of basic copper(II) carbonate, CuCO (OH) experiment involves producing copper from copper(II) carbonate. The copper carbonate is first heated to produce copper(II) oxide, which is then reduced to the metal using carbon as a reducing agent.
Sep 17, 2012· Hey guys, basically I''ve been set the task of working out "simple reacting mass equations" but our teacher didn''t explain how to do it. Here''s the questions I have, so you have an idea of what they''re like. i) Given of Sulphuric Acid (H2SO4) and using the equation below, work out the maximum amount of Sodium Sulphate (Na2SO4) formed.
Sep 25, 2016· Practical 4: Measuring % by mass of CuCO3 in (OH)2 Posted on September 25, 2016 September 25, 2016 by laurendoeschemistry in Practicals In this practical, copper(II) carbonate basic was reacted with sulfuric acid to determine the percentage by mass of copper(II) carbonate in the copper(II) carbonate basic sample.
Impurities have to be removed. Copper is purified by electrolysis. In this process copper is transferred from an impure anode to the cathode of an electrolytic cell. The insoluble impurities fall to the bottom. The copper produced by this process is % pure copper. This is similar to .
Part Three Resources and Technology, Chapter 5 World Copper Resources, CONTENTS Page ... Commercial copper ore deposits today contain from to 6 percent copper, or between 100 ... In carbonate deposits, the copper occurs with carbon and oxygen. In silicate mineral deposits, the copper is .
Samples of copper ore, such as malachite, could be shown, if available. For the second question, work out the concentration of copper in, say, testtube 3: Concentration Cu (as Cu 2+) = 4/10 x 1 M = M. Work out the concentration of copper ions when 5 g of copper carbonate is dissolved and made up to 100 cm 3 of solution: (Formula mass of ...
Apr 06, 2012· 2 powerpoints to cover 2 lessons on the extraction of copper from copper carbonate for high ability year 9. Lesson one students were shown one set of equipment and a lump of malachite. They had 20 questions (yes/no answers) as a class to work out the method of extraction and risk assess it.
The largest source of copper is from porphyry ore deposits in which one or a combination of the aforementioned minerals occurs. A typical copper sulphide ore contains various levels of iron sulphide types that generally include pyrite (FeS2) and pyrrhotite (Fe1xS).
ZINC CARBONATE AND RELATED COPPER CARBONATE ORES AT OPHIR, UTAH. By G. F. LOUGHLIN. INTRODUCTION. *. Although the Ophir mining district, Utah, has long been an im portant source of lead carbonate and of lead and zinc sulphide ores, zinc carbonate ore was not shipped from it until 1913. On July 23,
For example, a perfect copper concentrate for an ore containing copper only as chalcocite would run % copper, but if the smelter is best equipped to handle a 36% copper concentrate, then for milling purposes 36% copper may be considered the perfect grade.
Copper (II) carbonate, or copper carbonate, is made when the metal copper and the nonmetal carbon are combined with oxygen. These two chemicals combine to become stable and meet the octet rule (6). Since it is the combination of the metal copper, and the polyatomic ion carbonate, copper carbonate is held together by ionic bonds.
.An ore contains 10% copper. Work out how much copper you would get from 50kg of that ore? Ask for details ; Follow Report by Royet019304 6 minutes ago Log in to add a comment What do you need to know? Ask your question.
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