Copper sulphate

Introduction: The purpose of this lab was to learn the proper techniques of roasting, smelting, and volumetric analysis to determine an unknown sample of copper mineral. Results: For part one of Lab 3a, Day one, the beginning unknown mineral was a blue-green color. The mineral was charcoal colored after the roasting process. Roasting caused the mineral to lose mass. The lost mass was due to release of gas. Roasting Start Mass End Mass Percent Cu 0.390g 0.284g 58.2% Table 1. Mass of CuO mineral

Have Copper Roof Accents? Learn 3 Ways To Make Them Look Great Again Your roof not only provides you shelter, but can increase your home’s value and appearance. That’s why it is so important to maintain copper roof accents if you have them. The accents give your roof some great curb appeal, but if ignored, they can become an eyesore. Learn 3 different ways that you can make the copper roof accents look great again. Vinegar and Lemon Juice You may be able to pressure wash a roof, but it will not do

What is the actual cause of Otzi the Iceman’s death? Using information from different websites I was able to get different theories from different archaeologists and forensic radiologists to help me decide how Otzi died. Otzi was found in September 19, 1991 in a large gully in the Otzal Alps by two hikers. The hikers thought it was a body of a hiker that died recently and they contacted the police immediately. It took five days to recover the body due to the bad weather and tough conditions. Due

tools and weapons. At the time it was discovered that by adding copper and tin, a stronger sharp alloy metal could be created. Therefore bronze became popular and commonly used for weaponry and household items. During the Bronze Age (3000-1200 B.C.), also known as the Age of Metals, three innovations came about in Mesopotamia and Egypt metallurgy, writing,  and construction (Matthews, Noble, & Platt, 2014, p.6). Interestingly, making copper originated between the Euphrates and Tigris River in Mesopotamia

In preparation of this lab, a slinky (treated as a solenoid) with 80 rings was stretched to a length of 1.5 m, producing a coil density of 53.333 rings/m and taped at both ends of the solenoid onto a lab bench. An adjustable power supply was connected to insertable positive and negative ends of the alligator plugs. The two alligator wires were coloured black and red, the black wire was connected to the negative end while the red wire was connected to the positive end. The alligator heads were then

Die, made in 1968, is a minimalist sculptural artwork by renowned American artist Tony Smith. Smith had originally prototyped the sculpture in 1962, when he made a six-inch cardboard model, but he did not have Die fabricated until 1968. The final format of Die is a six-foot cube of quarter-inch hot-rolled steel that is held together by internal steel bracing. To have it created, Smith worked with the Industrial Welding Company in Newark, New Jersey, which owes to its rusty, industrial external appearance

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

Objectives: Copper belongs to group 11 and is also known to be the least reactive of the first row metals. It is the only d-block metal in the first row that has a stable 1+ oxidation state however in comparison to its +2 state, the former is seen as unstable. Cu(0) is rarely stable (2) and hence this is why it is not abundant in nature, and instead is generally extracted from ores via leaching or roasting methods. It is the +2 oxidation state that seems to dominate the majority of aqueous copper chemistry

Copper is present in body tissue in trace amounts, but the highest amount is found in the liver, followed by the brain, kidney and heart. An adult body contains around 100 mg of copper3.It usually bound to protein complexes; 95% of blood plasma copper is bound to ceruloplasmin, while the rest is bound loosely to other blood proteins such as albumin, transcuperin, and amino acids. However, for a given ceruloplasmin concentration in healthy people, the total copper concentration is varying by 50 µg/dL

the amount of copper in an unknown sample mixture. It is also known that the determination of the percent concentration of a certain solution, will directly effect the percent transmission and absorption of a solution, dependent upon its dilution. By first testing known concentrations of a solution, and plotting this information graphically, a line is formed