Copper Metal Ions Research Paper

Starting with the mass of the copper wire, this table recorded the weight (g) along with observations that occurred throughout the procedure. At the beginning of the procedure, 4.0 mL of concentrated nitric acid, HNO3 (16 M), was added to a 50 mL beaker containing a pre-cut, pre-cleaned piece of Copper (Cu) wire. A lively reaction occurred as the Cu was disolved, forming a brown, harmful gas inside the beaker. The gas was nitric oxide. To better describe the observation is the chemical equation,

Copper is a metal, that people obtain from chalcopyrite and bornite ores and minerals, by smelting, leaching and electrolysis, which are chemical reactions. Yet, it belongs to a sub-group of metals called ‘Transition Metals’. Existing as an element, it’s small particles (atoms) are very close to each other (most common state for copper is solid), but aren’t chemically bonded. Consequently, it is a 26th element on the periodic table, meaning that it’s atomic structure consists of 26 protons, and therefore 26 electrons.

The purpose of the experiment is to cycle solid copper through a series of five reactions. At different stages of the cycle, copper was present in different forms. First reaction involves reaction between the copper and nitric acid, and copper changed from elemental state to an aqueous. The second reaction converted the aqueous Cu2+ into the solid copper (2) hydroxide. In the third reaction Cu(OH)2 decomposed into copper 2 oxide and water when heated. When solid CuO reacted with sulfuric acid, the copper returned to solution as an ion (Cu2+). The cycle of reactions was completed with the reaction where elemental copper was regenerated by Zn and Cu

Copper is another pollutant that at very high levels is toxic and can cause vomiting, diarrhea, loss of strength or, for serious exposure, cirrhosis of the liver (Pure Water Services). In order for copper to metabolized the heavy metal zinc is needed. Zinc helps with copper breakdown but too much zinc can cause a copper deficiency which can also cause problems such as anemia. While copper has some severe side effects there have not been any cases that are related to cancer. In most cases throughout the Silver Bow Creek copper is not thought to be a severe threat to the community.

13) When the tray is thoroughly dry, determine its mass. Record the mass in the data table. You have to wait until day three to weigh the copper.

In this experiment, the experimenter will determine the chemical formula for the copper chloride hydrates using the law of definite proportions. The hydrated compound has a general formula of CuxCly•zH2O, with the variables x, y, and z. The variables represent the whole number ratio of moles that will be the “true” chemical formula of the hydrate. The chemical formula shows the number of atoms of each element in a compound.

XIII. Carefully remove the copper metal from the filter paper onto the watch glass. (with a spatula) Place a 400 ml beaker on a hot plate contained with water. Carefully place the watch glass before the water boils to dry the copper metal. (Use the tongs to handle the hot watch glass)

The lab performed required the use of quantitative and analytical analysis along with limiting reagent analysis. The reaction of Copper (II) Sulfate, CuSO4, mass of 7.0015g with 2.0095g Fe or iron powder produced a solid precipitate of copper while the solution remained the blue color. Through this the appropriate reaction had to be determined out of the two possibilities. Through the use of a vacuum filtration system the mass of Cu was found to be 2.1726g which meant that through limiting reagent analysis Fe was determined to be the limiting reagent and the chemical reaction was determined to be as following:-

The experiment was performed to show the many chemical reactions and states of copper, a very common yet important element that can is found in many useful compounds throughout the world. Copper was combined with many different compounds and elements to cause chemical changes in the state of copper. These reactions were conducted to display the several different states of copper throughout the cycle, ultimately restoring the copper after the metal seemingly disappeared.

Copper is a soft metal. Its chemical symbol is “CU”, its latin name is caprum. Copper is an essential in all plants and animals. It helps your body use iron , so a copper deficiency can manifest anemia like symptoms. Copper has antibacterial, germicidal, and antimicrobial properties. Things made of brass, like doorknobs and bullets will rid itself of bacteria within 8 hours.

Absorption of copper occurs in its ionic form in the small intestine and, to a limited extent, in the stomach. However, intestinal absorption of copper limited by other metal ions like zinc and cademium, and sulfide ions19,20. The presence of some amino acids and ascorbic acid in the intestine also lower the absorption of copper21,22. Absorbed copper carried in the blood by different transport proteins such as ceruloplasmin, albumin and transcuprein and/or histidine23. Once it is in the blood, it is distributed in two stages; in the first stage, most taken up by liver and kidney;

Copper is a key mineral in many different body systems. It is central to building strong tissue, maintaining blood volume, and producing energy in your cells. Yet, for all its critical importance, you don't have much copper in your body. In the foods we commonly eat, there are only very small amounts of copper. As much as any dietary mineral, the amount of copper you eat is directly related to the amounts of minimally processed plant foods you get every day. Copper is required to manufacture collagen, a major structural protein in the body. When copper deficiency becomes severe, tissue integrity—particularly bones and blood vessels—can begin to break down. The DRI report also established a Tolerable Upper Intake Level (UL) of 10 mg per day

Symbol is Cu and its atomic number is 29 as well as the atomic mass being 63.546.

When writing chemical formulas for compounds with transition metals, the transition metal will always come first. For the copper(II) chloride example, you first write “Cu” for copper, followed by “Cl” for chloride. Since you determined you need two chloride ions when you balanced the compound, the complete chemical formula should read “CuCl2.” If you have a transition metal in a compound with a polyatomic ion, the polyatomic ion needs to go in parentheses. For example, chromium(II) bicarbonate’s formula is “Cr(HCO3)2.” Notice the subscript for the polyatomic ion is located outside of the parentheses.

In the present work, low concentrations of manganese could stimulate the Cunninghamella elegans growth. Interestingly, increase the manganese concentration to 30 ppm was optimum for the fungus to give the highest growth rate and the best sporulation comparing with control and other manganese concentrations (Fig. 35). Increasing the manganese concentration to 50 ppm recorded the same growth as control and then this rate suddenly decreased with 100 ppm manganese. The fungus completely killed with 300 ppm manganese and above (Table 33, Fig. 34). There is no appreciable difference in growth of Cunninghamella elegans with increasing concentration (1 ppm-100 ppm) of copper and markedly decreased with increasing metal concentration (300 ppm-1000 ppm). Souza et al., (2005), revealed the physiological aspects of the growth of C. elegans in the presence of copper, whereas C. elegans is able to grow in copper containing medium and that the metal has a stimulatory effect on biomass production. Therefore, the fungal growth in control media was slower than in the presence of copper. In the present study, we confirmed the previous results but with a limited amount of copper in the culture media (1 ppm- 50 ppm) while the growth inhibited with high concentrations (100 ppm to 1000 ppm) and going slower than control. Luciana et al., (2004) stated that chitosan was the polysaccharides with the best capacity for copper biosorption (75 %).