Copper Cycle

In: Science

Submitted By Flyhle
Words 681
Pages 3
Copper Cycle
The copper cycle involves many different type of reactions. In this lab you will investigate the various types of reactions that are used to complete the cycle. Solid copper will be added at the beginning of the reactions. Due to the law of conservation of matter the amount of copper put into the reaction should also come out of the reaction at the end.
The reactions that you will perform are generally outlined in the following cycle:

1. 8HNO3 (aq) + 3Cu (s) + O2 (g)  3Cu(NO3)2 (aq) + 4H2O (l) + 2NO2 (g)
2. Cu(NO3)2 (aq) + 2NaOH (aq) 
3. Cu(OH)2 
4. CuO (s) + H2SO4 (aq) 
5. CuSO4 (aq) + Zn (s) 
250 mL beaker Aspirator H2O
Glass funnel Rubber tubing 15 mL - 6.0 M Sulfuric Acid
Ring stand Bunsen burner 2.0 g Zinc powder
Ring  0.5 g copper wire 10 mL - 6 M Hydrochloric Acid
Wire Gauze 4.0 mL - 16 M Nitric Acid
Finger clamp 30 mL - 3.0 M NaOH

1. Create a fume hood from a funnel surgical tubing and aspirator.
2. Support the 250 mL beaker with a ring and wire gauze.
3. Connect the funnel with a finger clamp over the 250 mL beaker.
4. Connect hose to funnel and aspirator (fume hood maybe used in lieu of funnel and aspirator set-up).

1. Mass a 250 ml beaker and record in the data table.
2. Mass out approximately 0.500 grams of no. 16 copper wire and record the mass of the copper in the data table and place the copper in a 250 mL beaker.
3. Acquire 4 to 5 mL of Nitric Acid in a graduated cylinder from your instructor.
4. Start the aspirator and pour the HNO3 into the beaker with the copper. (Caution fumes that are given off in this reaction are poisonous. If some of the acid makes contact with your skin quickly rinse the contaminated area.)
5. Record your observations of the first reaction…...

Similar Documents

Chilean Copper Mine Collapse

...Chilean Copper Mine Collapse Rhonda Jenkins BCOM/275 09/03/2012 Charles Cattermole Chilean Copper Mine Collapse The news of a devastating accident is not easy to prepare or communicate to anyone involved. Being the bearer of bad news is never easy. The way in which the news is delivered, and what must be done before and after the news is relayed is also important. The needs of the employees are different than the needs of the family members of those men who were trapped in the mine. It is vital to make sure to address each of these groups in a specific way. When addressing the employees, the best method of communication for an accident such as this is a face to face meeting. This type of devastating news is too important to be delivered in an n e-mail or memo. When human suffering is involved the method of communication must be in keeping with the importance of the situation. A face to face meeting is also warranted when delivering the news to the families of the men who were trapped. In the case of the employees, the best method is to go to the location of the mine and have a face to face with all employees. In regards XXXXX XXXXX families, it would be best to provide transportation for all of the families to a location available that can hold all the people. A face to face is the only acceptable method. To deliver any other way would be to suggest a level of un-importance. The action that must be taken before meeting with each of the two groups, the......

Words: 1081 - Pages: 5

Copper, Silver, & Gold

...Copper is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; a freshly exposed surface has a reddish-orange color. It is found in many different places In the world, but the biggest composite of copper is in Chile second to that is in Utha, with other large mines in Arizona, New Mexico and Michigan. Copper can come from a naturally formed free metallic state found in t basaltic lava as a result of volcanic activity. Or Copper can be found in oxidized ores and sulfide ores that must be mined and processed oxidized ores contain primarily copper, and can basically be melted down into copper in a smelting procress. A process in mining copper is called open pit mining in which a big hole is dug in the earth that are sometimes a few thousands of yards wide. huge machinery are used to mine copper such as giant earth movers, rock crushers even blasting with dinomites is used to move large chucks of earth. luckly we are in not gunna run out of copper any thime soon. An estimated 5.8 trillionpounds of copper known worldwide, of which about .07 trillion pounds have been mined throughout history. And of that .07 trillion is still in circulation because coppers recycling rate is higher than that of any other engineering metal. Silver, what is it and where it found? Native silver is the purest kind of silver. Native silver is a metal with nothing else added to it. Most silver is found in an ore combined with a mineral. it can be found......

Words: 874 - Pages: 4

Chilean Copper Mine Collapse

...Chilean Copper Mine Collapse: news release to family 1 Andrey Maas BCOM/275 January 30, 2013 Toya Belgin Chilean Copper Mine Collapse: news release to family 2 We come before you today humbled by tragedy, as we reluctantly must inform you that our San Jose mine has collapsed trapping your loved ones inside. It happened on August 5, 2011 around 3 o’clock. At this time it is unsure of what actually caused the mine collapse, we do not know the physical condition of those trapped inside, nor do we know of any fatalities at this time. We were able to identify the personnel who were missing after the collapse, and it is unfortunately and with regret that I have to inform you that these men are your loved ones. I come to you face to face because, I and this company has always treated and thought of everyone in this company as one family. At this time we have numerous rescue specialists, and organizations working on determining different strategies and approaches that we will use to get to the men that are trapped down below. I would like to inform you that we have also informed the Regional Governor, Ximena and Governor Nicolas Noman and a Minister of Mining, Laurence......

Words: 831 - Pages: 4

Copper Versus Fiber

...Copper vs. fiber Everyone building a network must face this question at some point: fiber or copper wiring? For a usual home network or even a big office either one will suffice but what is the best option for you or your company. You have to take cost, distance of cabling, and bandwidth and speed into consideration when making this choice. Copper: a traditional copper wiring for a network certainly seems much cheaper on the surface. Copper wiring itself is dirt cheap at least comparatively on the surface, but you get what you pay for. Copper cables don’t last as long and have other performance issues to consider, including crosstalk and interference. Also the cost will go up because of the distance your cables must travel. With a copper network you will need more equipment, like a hub. A hub is a networking device used to help channel the cables and also to help extend the distance. A traditional copper cable should be no longer than 90 ft… not long enough to even go through my apartment let alone a huge office. So you have to install hubs just to get the distance. Also when you think of those cheap cables you have to think… how long will this last. They aren’t very durable and will wear out much sooner than a fiber cable. And then you’ll have to redo your entire network or tear the entire thing apart to find the problem. A copper network also will have bandwidth issues, which fiber eliminates. Also copper has many different types and sizes, meaning there is no real......

Words: 506 - Pages: 3

Copper Chimney

...TAGS:- Airconditioned PARKING:- Vallet OUR HERITAGE Captivated by the gastronomic delights of the North West Frontier province and Northern India, Mr. Jagdish Kapur – a prominent Bollywood filmmaker and food connoisseur, introduced a distinctive and exquisite culinary offering like never before to India. With this, he founded and began the journey that is today Copper Chimney with the first outlet in Worli, Mumbai, in the year 1972. Today, four decades later, Copper Chimney's rich heritage has spread across the country and gained international acclaim. Revered by food enthusiasts from across the globe, we have become a culinary landmark synonymous with authentic and flavourful cuisine as we continue to set new industry standards with our delicious food and cordial hospitality. OUR VISIONARY Late Mr. Jagdish Kapur with Mr. Sunil Kapur Mr. Sunil Kapur – the chairman and visionary behind the Copper Chimney group's expansion, is a pioneer in the food and beverage industry in India. Under his stewardship, his son Varun and a team of highly experienced professionals continue Copper Chimney's award winning legacy. As a founder promoter of Blue Foods, a leading player in the organized retail restaurant business, Mr. Sunil Kapur has been instrumental in introducing food and beverage concept innovations. He has successfully steered the organizations he leads to become major players in the sector and is responsible for the creation of many......

Words: 966 - Pages: 4

Copper vs Fiber

...Advantages of Structured Copper Cabling Power over Ethernet (PoE) — This gives you the ability to power phones, surveillance cameras, Wireless Access Points (WAPs), and many other devices right through the networking cable itself. That means that you don’t have to schedule an electrician in to run power to your surveillance cameras to power them. Another advantage is the ability to have an emergency power supply that will continue powering mission critical devices even if your electricity goes out. Less expensive electronics — If you are going to take fiber to the workspace, realize that most PC’s come with copper NIC cards. Optical ones will cost you between $100-200 each. More Flexible — TDM environments are built to run on copper infrastructures. Fiber can be used, however the electronics that make it work are expensive. Advantages of Structured Fiber Cabling Electromagnetic Interference (EMI) — The interference in signal transmission or reception caused by the radiation of electrical and magnetic fields. Optical Fiber is immune to electromagnetic energy because it is a dielectric (not able to conduct electric current). Copper cabling, if not installed properly is vulnerable to the effects of EMI, such as undesirable responses, degradation, or complete system failure. High Bandwidth — Fiber has a higher bandwidth than copper. Example: Category 6A Cable is classified by the Telecommunications Industry Association (TIA) to......

Words: 367 - Pages: 2

Contrast of Copper and Fiber Optics

...NT1310 07/08/2013 Assignment 4 Contrast of Copper and Fiber Optics: Copper has been used in electric wiring since the invention of the electromagnet and the telegraph in the 1820s. The invention of the telephone in 1876 created further demand for copper wire as an electrical conductor. Copper wires in a cable may be bare or they may be plated to reduce oxidation with a thin layer of another metal, most often tin but sometimes gold or silver. Plating may lengthen wire life and makes soldering easier. Twisted pair and coaxial cables are made to reject electromagnetic interference, prevent radiation of signals, and to provide transmission lines with defined characteristics. Shielded cables are encased in foil or wire mesh. Fiber optic cable is one of the fastest-growing transmission mediums for both new cabling installations and upgrades, including backbone, horizontal, and even desktop applications. Fiber offers a number of advantages over copper. Fiber optics, though used extensively in the modern world, is a fairly simple, and relatively old, technology. Guiding of light by refraction, the principle that makes fiber optics possible, was first demonstrated by Daniel Colladon and Jacques Babinet in Paris in the early 1840s. John Tyndall included a demonstration of it in his public lectures in London, 12 years later. Unpigmented human hairs have also been shown to act as an optical fiber Below I explain how Fiber Optics is now the best......

Words: 833 - Pages: 4

Copper vs Fiber Papaer

...Home Page » Computers and Technology Copper vs Fiber In: Computers and Technology Copper vs Fiber Copper vs. Fiber Paper In putting in a network there are many aspects to consider such as the Topology or design, what type of hardware to be used, and types of cabling. Copper cables are the norm when it comes to building and network and widely used in our communications of today. Copper has been used in electric wiring since the invention of the electromagnet. Copper and its alloys are also used in buildings is the most important market for the copper industry. The inherent strength, hardness, and flexibility of copper building wire make it very easy to work with. Its flexibility makes it easy to join, while its hardness helps keep connection securely in place. There`s also another type of cabling you can use and its Fiber optic cabling which is becoming more in use in communication. Unlike copper fiber uses optical fiber elements which are typically individually coated with plastic layers and is contained in a protective tube suitable for the environment. Optical fibers are inherently very strong, but is drastically reduced by unavoidable microscopic surface flaws inherent in the manufacturing process. The strength of fiber as well with its change in time, are to be considered relative to the stress impose in today environment. Its benefits out way those of copper, fiber is relative to the stress imposed during handling, cabling, and installation...

Words: 280 - Pages: 2

Copper and Fiber

...Copper vs Fiber These two forms of cabling are mostly used in the world today and it is up to the location to decide which cable is best. They both have their strengths and weakness; I am going to shed some light on these two cables. Copper gives you the ability to power phones, surveillance cameras, Wireless Access Points, and many other devices right through the networking cable, meaning that you don’t have to schedule an appointment with an electrician in to run power to your surveillance cameras to power them. To make it better copper is cheap, flexible and easy to run, most computer currently has a copper NIC in it. Category 6A Cable is classified by the Telecommunications Industry Association (TIA) to handle a bandwidth up to 600 MHz over 100 meters, which possibly, could carry around 18,000 calls at the same time. The maximum allowed industry standard of attenuation for Category 6A cable over 100 meters at 100 MHz is 20.9 dB which is a 94% loss in signal strength. Fiber provides far greater bandwidth than copper and has standardized performance up to 10 Gbps, the fiber optic signal is made of light, very little signal loss occurs during transmission, and data can move at higher speeds and greater distances. Fiber distances can range from 300 meters (984.2 ft.) to 40 kilometers (24.8 mi.), depending on the style of cable, wavelength, and network. All data is safe with fiber cable, because it doesn’t radiate signals and is extremely difficult to tap, if the cable...

Words: 362 - Pages: 2

Chile Copper

...BUSINESS CASES COPPER, THE CHILEAN SALARY TOMAS ALBIÑANA - #51728 CYRIL RINGELING - #51911 EUROPA – UNIVERSITÄT VIADRINA FRANKFURT (ODER) 2014 Table of Contents Introduction 3 Reaction to the Crisis 4 Would prices recover and sustain the pre-crisis level? 6 Fiscal Policy in Piñera’s Government 7 Codelco, the Chilean Company 8 What would Piñera and his finance minister Felipe Larraín do once they were in office? 9 Conclusion 10 Bibliography 11 Introduction The Chilean economy faced a very important challenge when the price of copper dropped in 2008 cause of the global meltdown. Considering Chile is the largest producer of copper in the World, satisfying 36% of global demand, the fast fall down on the prices of the commodity put in alert its economy. Chile has the 28% of cooper reserves worldwide and represents a 14,2% of its GDP and also 57% of its exportations with an amount of U$D 49 billon. Codelco is a Chilean state owned copper mining company, it is currently the largest copper producing firm in the world and produced around 1.66 million tonnes of the metal in 2007, 11% of the world total. According to that situation, the Minister of Finance, Dr. in Politic Economics from Harvard University, Andrés Velasco, acted proactively looking for accurate solutions trying to prevent the effects of the international crisis. The economic crisis of 2008-2014 began in 2008 and it was......

Words: 2046 - Pages: 9

Copper vs Fiber Optic

...Unit 4. Assignment 1. Copper vs. Fiber Paper Copper (Ethernet) Cable * Ethernet cables are vulnerable to electromagnetic interference because they work through electrical signals. * Due to the way in which data is transmitted across Ethernet copper cabling, it is vulnerable to being intercepted. * Ethernet offers less bandwidth. Ethernet can provide data transfer speeds of up to 1000Mbps, but through the use of Cat 6 cables it can support data transfer rates of up to 10Gbps. * There is always electricity present in Ethernet cables. * Copper cabling strands are thicker than optical fiber strands, so less wires can be bundled in a 22 gauge copper cable than in a 22 gauge optical fiber cable. Optical Fiber Cable * Fiber optic cables are ideal for high voltage locations, in buildings prone to lightning strikes, and locations where explosive fumes are present. Because optical fiber cables work through the transmission of light, interference from electronic devices isn’t a concern. * Information sent via fiber optic cables is much more difficult to intercept because light can’t be read in the same way signals sent via copper cabling can be. * A single optical fiber strand has been shown to transmit data at a rate of 100 terabits per second. Optical fiber transmits data faster than copper Ethernet cable. * Unlike Ethernet cable, optical fiber cable is non-flammable because it does not use electricity. | Optical fiber Copper wire Safety ✔......

Words: 814 - Pages: 4

Copper Kettle Catering

...Copper Kettle Catering. – Case Study Abstract This case study will answer specific questions surrounding founders Wayne and Janet Williams’s full-service catering company, Copper Kettle Catering. Copper Kettle Catering is known as one of the largest catering business in Raleigh. The company’s competitive priorities are high-quality food, delivery reliability, flexibility and cost. Operations include two distinct processes; deliver only and deliver and serve. This case study will also discuss Copper Kettle Catering’s competitive priorities, the changing nature of the customer and the lean concepts and practices the company can implement to increase flexibility, reduce lead times and lower costs in order to stay competitive with small specialty caterers targeting specific well-defined market segments. The Millers must also consider any barriers to implementing a lean system to meet the demands of menu flexibility and faster response times. Keywords: lean systems Copper Kettle Catering. – Case Study Synopsis Copper Kettle Catering is known for their catering services that provides box luncheons and deliver and serve services for large parties, dinners and weddings. Demand for deliver only services are constant with a changing product mix. The planning horizon is short. In contrast, the deliver and serve side process has a more seasonal demand with a longer planning horizon with customers booking dates weeks or months in advance. Both processes are supported by......

Words: 1509 - Pages: 7


...Cash Receipts Cycle Upon the due date, the company collects payment from its clients usually they pick-up the payment every Friday. However, there are instances of special arrangements for collection for specified day of the week. The collector or messenger collects the payment from its clients and issues a duplicated copy of official receipts. The original is given to the clients as its copy. Before the end of the same banking day, the collector/messenger goes to their depository bank, prepares a deposit slip and deposits their collection. The authorized duplicate copy of the deposit slip is then attached to the copy of the duplicate official receipt and turned over to the accounting department. The accounts receivable clerk will reconcile the payment transaction. She checks if the validated duplicate copy of the deposit slips corresponds to the duplicate official receipt. If it matched, this will trigger the posting of payment of the client in the official receipts and updates the invoicing book and accounts receivable ledger. At the end of each week, the collector and the accounting staff prepares a weekly collection report and summary of accounts receivable aging report respectively that will be given to the accounting manager. The aging reports are for internal purposes and to see how many collection the company made. At the end of each month, the accounting manager does bank reconciliation to update the company’s book. She reconciles the passbook with the cash in......

Words: 1077 - Pages: 5

Nt1310 Copper vs Fiber

...Copper is the most used cabling solution in the market at the moment due to its ease of use and its price. Even the equipment is substantially cheaper to buy than other means of transmission. Copper cabling utilizes a single or multiple strands of copper to transmit data from one end to the other. Copper is broken up amongst several different categories each with their own set of improvements and flaws ranging from difficulty of installation to cost. The lower the category the more prone to interference there is like EMI’s and RFI’s. Electromagnetic interference from other cables in the location like power cords or other data connections. And RFI Radio frequency spectrum interference although the higher categories like Cat 7 are less prone to such interference a coper cabling solution is not 100 percent protected from such external interferences. Copper does have some limitations in how long a data signal can be sent without it becoming lost or the signal becoming too weak to make a proper connection which is around the 1000 feet or 305 meter range. Fiber optic on the other hand is much more expensive and as such so are the tools used for installation. Fiber optic is compiled of a core which can resemble glass in its form and a laser or diode that emits a light from one end to another enabling data transmission. Fiber is the best solution in speed and range that data can be transmitted. There are two different types of fiber optic cabling one being multi-mode and the other......

Words: 640 - Pages: 3

Copper Cycle

...Chem 102- 810 Lab partner: Amanda K Experiment 11: Copper Cycle Lab Report Objective: To observe a sequence of reactions involving copper that form a cycle; to develop better laboratory techniques; to gain skills in observing and interpreting observations; and to practice quantitative laboratory techniques. Reactions: 1. Cu(s) + 4HNO3 (aq) ---------- Cu(NO3)2(aq) + 2H2O(g) + 2NO2(l) 2. Cu(NO3)2 (aq) + 2NaOH(aq) --------- Cu(OH)2(s) + 2NaNO3 (aq) 3. Cu(OH)2 (s) + HEAT ------------ CuO(s) + H2O(l) 4.CuO(s) + H2SO4(aq) ---------- CuSO4 (aq)+ H2O(l) 5.Zn(s) + CuSO4 (aq) ------------- ZnSO4(aq) + Cu(s) Potential Hazards: Concentrated nitric acid causes severe burns and the vapor is a lung irritant. The hydrogen gas that is produced is flammable. Concentrated hydrochloric acid causes severe burns. Methanol is flammable. Keep away from all ignition sources. Acetone is flammable. Keep away from all ignition sources. Procedure: 1.Obtain about 0.5g copper. In the main fume hood, using a 250 mL beaker, prepare the Cu(NO3)2 by adding 4.0mL of concentrated nitric acid to the copper wire. ***Caution. 2.Add 30 mL of 3.0 M NaOH to precipitate Cu(OH)2. With stirring, heat just to boiling on a hot plate. This will change the insoluble Cu(OH)2 into insoluble, black CuO. 3.Let the CuO to settle, then decant the supernate liquid. Add about 200 mL of very hot distilled water, settle and decant a second time. Properly dispose of the supernate......

Words: 1120 - Pages: 5

Montature occhiali da vista | Manuales y documentación | ダウンロード APK