This will prepare you for a percent yield lab (time permitting) and percent yield questions, next chapter. Percent yield = (actual amount / theoretical amount) x 100 In our case, % yield = (actual mass H 2 O / theoretical mass H 2 O) x 100 = (answer 3 / answer 9B) x 100 Show Work. The closer to a "100", the better! x 100 correct answer
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using common, everyday materials. We will use an extraction buffer containing salt to break up protein chains that bind around the nucleic acids and dish soap to dissolve the lipid (fat) part of the strawberry cell wall and nuclear membrane. This extraction buffer will help provide us access to the DNA inside the cells. Pre-lab questions: 1.
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View Drew_Copper_Extraction_lab from SCIENCE 1101 at University of North Georgia, Gainesville. Copper Extraction & Mining Reclamation Lab PURPOSE To measure the amount of copper metal you can ... Calculate and record the percent yield of copper in Table 1. 15. Answer all analysis questions. DATA - Table 1 Mass of Filter Paper 1.3g …
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Copper processing - Roasting, Smelting, Converting: Once a concentrate has been produced containing copper and other metals of value (such as gold and silver), the next step is to remove impurity elements. In older processes the concentrate, containing between 5 and 10 percent water, is first roasted in a cylindrical, refractory-lined furnace …
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In this experiment students carry out an investigation similar to what is conducted within industrial laboratories. Information and directions are provided for the experiment which investigates the recovery of copper metal from ore using solvent extraction. It includes background information on the industrial process and chemistry involved, as well as …
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Answers to questions. As it is heated, the black copper oxide begins to turn into a shiny, orange solid. A liquid can be seen to collect near the end of the tube. The products are copper and water. The reactants are copper oxide and hydrogen. copper oxide + hydrogen → copper + water CuO(s) + H2(g) → Cu (s) + H2O(l)
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The extraction is repeated two to three times, or perhaps more times if the compound has a low partition coefficient in the organic solvent. Figure 4.16 shows a diagram of an aqueous solution being extracted twice with …
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— However, solvent extraction is one of the most viable routes to extract copper from pregnant leach solution (PLS) among other methods such as precipitation, coagulation, flocculation, flotation, ion exchange, electro-oxidation, membrane filtration, and biosorption [1,2,3,4,5]. It is the most sorted and valuable route due to its distinct ...
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Using the simulation below, answer the questions on your worksheet. ... * The video says Cu 2 SO 4, but the reaction shown in this video is between copper (II) sulfate and sodium phosphate. Query (PageIndex{2}) 2. Cadmium (II) chloride and sodium sulfide ... If virtual lab says "Default Lab Setup" refresh your page .
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Chemistry questions and answers; CHEM 2020 Lab 3 Report (Extraction and Recrystallization) Full Name: This report must be an independently produced piece of work. Your lab mark (out of 10) will be determined by the pre-lab, interactive video, and this report. 1. Calculate the % yield of the ammonium tartrate salt crystals you filtered, based ...
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components, and is widely used in laboratories and industries. Crude petroleum is separated by the process of fractional distillation into different fractions like gasoline, lubricating oil, kerosene, diesel etc. Fig 6: Gravity Separation. (Source: NCERT, Science IX, p. …
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Purpose of the Lab . In this lab, you will extract strands of DNA from the nuclei of strawberry cells. Did you know that strawberries are an octopoid? Meaning they have eight copies of each chromosome, so they have a lot of DNA. STEPS of the lab . First, you will place your strawberry(ies) into a plastic bag. Add the buffer solution to the bag.
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Revision notes on 4.1.4 Bioleaching & Phytomining for the Edexcel GCSE Chemistry syllabus, written by the Chemistry experts at Save My Exams.
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Copper (II) nitrate is then converted to copper (11) hydroxide, Cu(OH)2, by reaction with a base. When this compound is heated, it is transformed into copper (11) oxide, Cuo. Copper (11) oxide is then reacted with acid to …
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this experiment is designed in order to serve as a quantitative evaluation of your individual laboratory skills in carrying out some of these operations, you will also become acquainted with two fundamental types of chemical reactions called …
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4.6 Recall that the extraction of metals involves reduction of ores; 4.7a Explain why the method used to extract a metal from its ore is related to its position in the reactivity series and the cost of the extraction process, illustrated by: heating with carbon (including iron) Edexcel Combined science. Topic 4 - Extracting metals and equilibria
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This method of extraction works because carbon is more reactive than iron, so it can displace close displace Take the place of another substance in a chemical reaction. For example, a metal can ...
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Copper - From Beginning to End. Copper is a major metal and an essential element used by man. It is found in ore deposits around the world. It is also the oldest metal known to man and was first discovered and used about 10,000 years ago. And as alloyed in bronze (copper-tin alloy) about 3000 BC, was the first engineering material known to man.
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INTRODUCTION An extraction is a technique used for the separation and purification of organic compounds. In the extraction process water insoluble organic compounds can be extracted from an aqueous solution into an …
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— The aqueous solutions used in the copper extraction experiments contained 6 g/l of Cu(II), 5 g/l of Fe(II) and 2 g/l of Fe(III). The solutions were prepared by adding sulfate salts of Cu 2+, Fe 2+, and Fe 3+ in either distilled water or seawater. Sodium chloride was used when necessary to adjust the total chloride concentration to 19.6, 60 …
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Study with Quizlet and memorize flashcards containing terms like In step 2, when you add nitric acid to the copper wire, what is the gas produced?, What type of reaction is the …
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Answers to questions 1. As it is heated, the black copper oxide begins to turn into a shiny, orange solid. A liquid can be seen to collect near the end of the tube. 2. The products …
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— Extraction of copper from copper pyrite. Q. Write down the extraction of copper from copper pyrite. [8 marks] Answer: It can be extracted from copper pyrite which goes through the following step: 1. …
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— Post-Lab Questions: 1. In Part 3 Step 3, after decanting the supernatant into the beaker, the residue (sand) was washed a few times with laboratory water. Explain why this washing step is necessary. 2. Obtain the actual percentage of each component in your unknown mixture from your instructor.
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— Use of scrap iron to extract copper. Option 2B: Additional electrochemistry and the extraction of metals. 2B.5 d-Block Metals. Depth of treatment. Manufacture of iron (blast furnace - chemical aspects) and steel. England. GCSE. AQA Chemistry. 4.4 Chemical changes. 4.4.1 Reactivity of metals. 4.4.1.3 Extraction of metals and reduction
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Three of the processes introduced above have made great strides in solving these problems for the extraction of copper from chalcopyrite: The GEOCOAT™ Process - A heap leaching process that is capable of …
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Use this practical to produce copper from copper(II) carbonate, modelling the extraction of copper from malachite. Includes kit list and safety instructions.
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— In this investigation, a laboratory-scale study to extract copper (Cu) from its oxide ore (0.425–11.2 mm particle size) was conducted using varied sulfuric acid (H 2 SO 4) concentrations (0.05–0.5 M) as a lixiviant. Through a physicochemical and mineralogical analysis of real field ore samples from the Almalyk mine heap site (Tashkent ...
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The reduction of copper with hydrogen is an interesting experiment, and this microscale version is safe enough for students to perform themselves. Some exam specifications now require coursework which shows that the …
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redox: CuSO₄ (aq)+Zn (s)→ZnSO₄ (aq)+Cu (s) decant. % yield. actual yield/theoretical yield x100. recovered mass Cu/initial mass Cu x100. Study with Quizlet and memorize …
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