Place the beaker in the fume hood and measure out 6 ml nitric acid. Be very careful handling the sulfuric acid, nitric acid, and sodium hydroxide. The copper, sulfur, and oxygen ions are floating in the solution. The assignment was to create a formal lab report that expresses data and observations, lab procedure, and a discussion of the data with a conclusion. This part of the lab has to be done in a fume hood or outdoors. Dilute the resulting solution with about 10 ml of deionized water. The copper oxide and sulfuric acid produce copper sulfate, which is aqueous. The purpose of this lab is to observe and describe the element copper as it goes through series of reactions. The copper cycle was a lab, in this lab, the copper atoms went through many changes but ended with about the same amount of copper as we started with.
Copper cycle lab report 1517 words 7 pages the copper cycle alexes montalvo chem 150010 september 26, 2012 the copper cycle introduction. Explain what happened to the copper at each step of the experiment. To change copper in various types of reactions, including physical. Reaction of the ore over quite a long time and on a huge scale with a dilute acid such as dilute sulfuric acid to produce a very dilute copperii sulfate solution. Copperii chloride dihydrate and cuso45h2o is copperii sulfate.
Copper was one of the first metals to be isolated, due to the ease of separating it from its ores. Goggles, closedtoe shoes, lab coat, long pantsskirts and sleeves. Copper cycle experiment 3 lab report name first last mcgill id number demonstrator section day time date complete table 4 by writing a balanced equation for each reaction. This simple lab demonstrates chemical transformations in and the conservation of copper. You will begin the lab with a piece of copper wire, convert the copper into a number of different compounds of copper and finally recover the copper. Methylmethaqualone differs from the cycle lab report copper informatics degree. Students will make quantitative measurements of the products, calculate percent yield, and will complete an independent lab writeup. Calculate the amount of copper in the original solution, assuming that the. What ions did you remove when you washed the precipitated copper.
Copper is used to make many different kinds of products like wire, plumbing pipes, and. In this laboratory experiment, students will perform a series of reactions known as the copper cycle. Chemical reactions of copper and percent yield key objective to gain familiarity with basic laboratory procedures, some chemistry of a typical transition element, and the. Lead remains ductile if worked at room temperature, while copper hardens significantly. Read copper cycle lab report from the story chemistry lab reports by jeffjeffdude timothy tanker with 6,079 reads. Copper report chem110 general chemistry 1 mcgill studocu. The aqueous form of copper is present in the beaker after sulfuric acid was added. In making observations, it is important to distinguish between a solution and a solid suspended in water. Copper is a metal that occurs naturally throughout the environment, in rocks, soil, water, and air.
You will carry out the copper cycle using the ordering you created in discussion. Table 4 chemical equations of the reactions reaction type equation. Chem 231 experiment 3 a cycle of copper reactions procedure. In this lab you will investigate the various types of reactions that are used to complete the. The end product will be your original copper sample, making this a cycle of reactions. These are the items in order you must include in your typed lab report there are computers in the library you can use if you are having printercomputer problems. Describe the reaction between hno3 and the cu metal in your lab report. It is a ductile, malleable metal and is easily pounded andor drawn into various shapes for use as wire. Chemistry lab reports copper cycle lab report wattpad. Lab formal chemistry of copper chemical reactions hydroxide. Lab formal chemistry of copper free download as word doc.
It is currently composed of twelve townships, adams, defiance, delaware, farmer, hicksville, highland, mark, milford, noble, richland, tiffin and washington covering 412 square miles. Find the best essay sample on the copper cycle lab report in our leading paper example online catalog. It is believed that the process was known metallurgy as early as 4500 bc. Chemistry lab report copper cycle this is a lab report for my general chemistry class. A study of refined metallic copper and nickel production was carried out using life cycle assessment methodology to estimate the life cycle emissions of greenhouse and acid rain gases for these. Copper can be extracted from nonsulfide ores by a different process involving three separate stages. During this experiment, we were trying to see whether copper, after a chain of chemical reactions, will revert back to its elemental form. The purpose of this experiment is to demonstrate a cycle of reactions involving copper.
The copper cycle is a popular experiment used to determine if an element, in this instance, copper. Introduction in this lab, the procedure began with copper and the result was a coppercovered nickel. An improved copper cycle experiment journal of chemical education. In the sequence the available starting materials change in a number of steps.
In this experiment you will study a stepwise sequence of. First, i added nitric acid with copper in a beaker, which turned into a copper nitrate, a bluegreen solution. Despite all the materials used and steps taken, our result was the same as our beginning. The copper lab demonstrates stoichiometry in chemistry. Despite the chemical changes and reactions, which is when a.
Copper is an essential element in plants and animals including humans, which means it is necessary for us to live. Copper cycle chemists in industry often use stepwise procedures involving a sequence of chemical reactions to obtain a desired product. The copper cycle lab chemical reactions hydroxide scribd. Concentration of the copperii sulfate solution by solvent extraction. The goal of the experiment is to observe a series of reactions involving copper that form a cycle and calculate the percent recovery of the initial copper mass.
Experiment 11 a cycle of copper reactions in this experiment, you will perform and observe several reactions of copper. Establish the relationship between the copper grade of the final concentrate and. Record observations for all of the steps iv of the copper cycle in your lab book. Measure approximately 30 ml of naoh into the graduated cylinder. Use your observations to determine which species are solids and which remain in solution. Learn vocabulary, terms, and more with flashcards, games, and other study tools. It speeds up the reaction in the copper cycle, and also acts as a dehydrating agent. Draw comparative stressstrain curves for a soft and ductile metal like cu, a mild steel, and a. Copper cycle lab hw this consists of a lab report and a book assignment lab report. Students are responsible for completing the lab report for the missed lab. The copper cyclewhich starts with copper and ends with copper demonstrates different types of chemical reactions and provides a great test of the law of conservation of mass and of laboratory efficiency. In this lab we want to see copper as it goes through series of reactions. Be careful not to breathe the nitrogen dioxide gas.
The purpose of this experiment was to convert copper wire into different states using a variety of methods, including oxidationreduction reactions and acidbase reactions. With careful attention to quantitative lab practices, you should be able to. The advanced version assumes the student starts in cycle a with copper wire, completes both cycles of the reactions, and finishes with the regeneration of elemental copper from copper sulfate. A percent recovery will be calculated and sources of loss or gain will be identified. In the final step of the lab when the copper precipitate was washed, zinc ions were removed. Copper cycle lab assignment data and observations keep your initial observations, and data in this section. To convert elemental copper into di erent copper compounds by a series of chemical reactions, regenerating elemental copper at the end of the copper. The purpose of this experiment is to demonstrate a cycle of reactions involving copper observations. Lab report murrieta valley unified school district. This is a cycle of reactions, because you start and end with the same substance, copper metal. This particular lab report shows my ability to work with quantitative data, and analyze the calculations. Copper is an element represented by the symbol cus. The following reactions involved in the copper cycle are in random order. For the lab, stoichiometry was used to predict the amount of copper that would be left over.
Hyunsoo seo copper cycle lab report oxidizing the copper to the nitrate back to elemental copper. Lets become familiar with basic laboratory procedures, some chemistry of a typical transition element, and the concept of percent yield. The copper cycle lab class set murrieta valley unified. Lab report the lab report should address all the questions above but should not consist only of. Then, at the end of the cycle, one should end up with solid elemental copper again, which theoretically has the same mass as the original sample. An improved copper cycle experiment journal of chemical. The purpose of the coppertocopper lab was to gain experience with identifying different types of chemical reactions, more specifically those involving copper, through which we learned the essentials of the law of conversion of mass theory. Chemistry of copper lab 3 pages 109 115 prelab pages 111 112 post lab questions page 114 115. Pdf life cycle assessment of copper and nickel production.
Title of experiment you do not need a title page 2. Stoichiometry is helpful in calculating the amount of an element or compound in chemical reactions. Defiance county has a long history of change and growth. Let me know what you think of the lab in the comments. Study 24 terms chemistry of copper lab 28 flashcards. The copper cycle experiment a series of reactions youtube. Chemical reactions of copper and percent yield lab experiment. This lab is designed around developing observation skills. Data can be obtained from a lab partner or the lab ta. Therefore, plants and animals must absorb some copper from eating, drinking, and breathing. The copper cycle alexes montalvo chem 150010 september 26, 2012 the copper cycle introduction. Jacob couldnt find the 6mh2so4, so instead substituted.
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