Chromated copper arsenate Essays

mineral sample (Malachite), and a rock sample (copper ore). Through the process of spectroscopy, the students were able to determine the percent of copper that each sample yielded. The students were also able to apply the information to the theoretical value of copper in malachite to determine the percent error of the mineral mass percent. Furthermore, the methods used in the experiment provide insight into how mining companies determine whether a copper ore mining site will be profitable or not. Mining

The item of tremendous value that he had was a copper axe and his clothes and his items he was found with which were symbols of his wealth and power among his clan and neighbors. Finding the axe surprised scientist because to make a copper axe it requires a technique called smelting and this wasn't thought to be around in the stone age(3300 B.C.E.) The fact is,Ötzi was a very important person

Cadet Eric Wiggins Date: 18 September 2014 Course Name: Chem 100 Instructor: Captain Zuniga Section: M3A Identification of a Copper Mineral Intro Minerals are elements or compounds that are created in the Earth by geological processes. The method of isolating metals in a compound mineral is normally conducted through two processes. Roasting is one which was performed in this lab involving the heating of the ore to decompose unstable ions which are bonded to the metal. Smelting is the other process

his body came to be like that because of the severe weather weather conditions and that atmosphere. Describe the artefacts found with with Otzi. What did they reveal? Otzi was a hunter. He was found with tools and weapons. When he was found he had a copper axe which said some things about witch tribe he came from. He also had a bow and arrow I suspect to hunt things with and gather food. He had a wooden backpack and he also had a stone dagger. Again probably to hunt things so maybe Otzi was a hunter

Decomposition of copper sulfate pentahydrate (CuSO4●5H2O) Introduction: By now, you are aware that scientists apply heat to substances in order to decompose them. In this lab, you will apply heat to make copper sulfate pentahydrate (CuSO4●5H2O) undergo a decomposition reaction. You will make observations and will have to make an educated claim about the products of the decomposition reaction. Furthermore, you will have to use your observations as evidence and will have to discuss your reasoning about

is more active than Copper (Cu) due to single-replacement reaction that took place. Lead had replaced Copper in the solution. Zinc (Zn), however, had replaced Lead thus leaving Copper to be the least active leaving Zinc to be the most active out of the three. In order of activity from least active, to most active, the metals would be lined up as following: Ag, Cu, Pb, Zn, Mg. From this lineup, it was be determined that hydrogen is more active than the elements silver and copper yet less active than

done with copper metal. Several reactions were ran with it, which produced different copper compounds to in the end finally recover the original amount of copper. This experiment is important because it proved the Law of Conservation of Mass. The Law of Conservation of Mass states that mass is neither created nor destroyed. So after the last reaction is done there should be the same amount of copper as there was before you began. Material: Beaker Evaporation Dish Pipette Metal Copper Nitric

There are many types of global distribution that take place all over the world. These include Iron Ore deposits, Copper, Gold, Silver, Platinum, Manganese, Tungsten, Chromium, Nickel, Cobalt, Bauxite, Lead, Zinc, Tin, Mica, Asbestos, Gypsum, and Diamond. Most of these mineral deposits can be found in many places all around the world. These minerals can have huge effects on the Earth and the people who live around the areas that these minerals are found. When these minerals are mined this can

Identifying reaction types and calculating percent yield after multiple chemical reactions of copper metal *Ashlyn Langner and Katherine Rumfield Chemistry 111 Section 524 Introduction A topic of interest in science is the evaluation of the law of conservation of matter through different types of chemical reactions and determining the percent yield resulting from these reactions. This law states that after a chemical reaction, matter should neither be created nor destroyed. This experiment allows

mass of beaker and copper chloride together(52.30 g), and the mass of three iron nails(2.73 g). The goal of this experiment is to determine the number of moles of copper and iron that would be produced in the reaction of iron and copper(II) chloride, the ratio of moles of iron to moles of copper, and the percent yield of copper produced. 2.00 grams of copper(II) chloride was added in the beaker to mix with 15 mL of distilled water. Then, three dry nails are placed in the copper(II) chloride solution

Copper Transformations Prelab Questions Three metals ions are Magnesium, Iron, and Nickel. Iron is used in the sea with iron rich minerals, for substances. Iron was also used in the formation of earth. Magnesium is used in cells of every organism. It helps balance out the functions within the cells. Nickel is used for light absorption in natural environments. Nickel is also used in rings for a cheap substance rather than silver or gold. The material needed for this experiment include a 100mL

CHEM 316 Monday 12-3:50 February 15, 2017 Analysis of Copper in a Penny by Atomic Absorption Spectroscopy and Ultraviolet-Visible Spectroscopy Introduction: The United States cent coin, also known as the penny, was originally composed of pure copper from 1793 to 1837 and the composition of copper in the penny has been diminishing since. For the next 145 years, the penny’s copper composition wavered between 95% and 88% until 1982 where the copper composition was reduced to 2.5% while the rest of penny

Otzi the Iceman was discovered in 1991. He was found in the snowy Otzal Alps. He lived about 5,300 years ago. He was named Otzi, after the location he was found. For many years, scientists studied his body to understand how he died. You will be surprised by the results. My claim is that Otzi was murdered by a group of early humans. The reasons I think Otzi was murder are according to “Digging for the Truth,” Otzi had minor cuts on his hands which means Otzi could have had a fight and was defending

reacting the two to create copper. Because of the law of conservation of mass, the creation of copper had to take mass from one of the reactants, in this case, iron. We observed the mass of the iron nails decrease between the start and the end of the lab, and we then converted that mass in grams into moles of iron and did the same with the amount of copper that we recorded after the decanting process. We used these two measurements to calculate the mole ratio between iron and copper. By doing this, we were

Copper is an element and a mineral important to our everyday lives. Because copper is stable, it can be used in jewelry, coins, wiring, and statues. It’s one of the well-known metals due to its reddish brown metallic color. Because copper has high ductility, malleability, thermal and electrical conductivity, and resistance to corrosion, it is a major industrial metal. Copper is one of the oldest metals, dating back more than 10,000 years ago. In ancient Egypt, many used everyday items created of

The bottom line-- Little Alchemy won’t teach anyone any foreign concepts, but it is a great way for kids to build interest in science and mathematical learning. It offers structure to down time and a basic learning environment. It is not completely challenging, but still offers a competitive drive. Little Alchemy lacks an objective and has no pull on human emotion, however, it offers an intellectual approach to creativity, a competitive edge to a simple plot, and an adrenaline rush that keeps the

Have you ever wondered what would happen if a penny was to fall off the top of the Empire State Building and hit someone on their head? It seems that this occurrence may be deadly. Infact , there are many who believes that at a fall from that high an altitude, 1,259 feet (381 meters) not including the antenna spire, a penny has the ability to cause a serious injury or even kill pedestrian down below. Well in order to cause such damages, this would be the case if the penny was in free fall. Yet this

The copper(II) metal complex was prepared by reacting copper(II) chloride and sodium saccharinate together by applying heat. The copper(II) chloride was originally a white solid and the sodium saccharinate was a blue solid. A centigram balance was used to weigh out a 1.01g sample of the sodium saccharinate and a 0.75g sample of the metal salt, copper(II) chloride. Each reactant was placed in separate 50-mL beakers and then dissolved using 10 to 20-mL of deionized water. Once dissolved the reactants

Cu(NO3)2, the mass of the copper wire was taken in an analytical balance so that it can be compared to the final mass of copper at the end of the experiment. The copper wire was bent slightly and was laid flat in a 250 mL beaker so that the 16 M HNO3 solution could cover the whole wire. In the fume hood, a disposable pipette was used to distribute about 4 mL of 16 M HNO3 into the beaker with the copper wire. The solution was stirred by rotating the beaker until the copper wire had completely dissolved

The Australian mining company, Fortescue Metals, is a company whose economic standing has fluctuated greatly within the last decade of its lifetime. This mining company is one that mines only for iron-ore, a commodity used to produce steel, which is very bountiful in Australia. Fortescue Metals is the world’s 4th largest exporter of iron-ore and is one of many iron-ore mining companies based in Australia. Their main competitors in Australia include Vale SA, Rio Tinto PLC, and BHP Billiton Ltd. (Hoyle)