Zinc oxide

Magnesium is a mineral that can be described in so many different ways. It is almost impossible to name every little thing that magnesium may assist in to help our body function. To start with, magnesium is roughly involved in 300 essential reactions that happen within our body. The adult contains about 25g of magnesium in their body. Magnesium has specific recommended consumption level. If there is not enough magnesium in the body, it can cause multiple problems or illnesses. The same applies…

1. The reported mole ratio of magnesium to oxygen will be too high. The experiment will have less oxidation while burning. Since there are 2 oxygen and some of the magnesium evaporates as it burns, the ratio will be higher than usual 2. Since there are some magnesium present at the end of the result from not allowing all of magnesium to react and oxidize, the ratio of Mg:O will be too high -Source of error: The first source of error happened when students lifted the lid off, sometimes he/she…

Johan Gottlieb Gahn, a swedish chemist, heated the mineral pyrolusite (MnO2) and in the presence of charcoal, found element 25, manganese in the year 1774. This silvery-metallic element has an atomic mass of 54.938049 rounded to 55 with 7 valence electrons. Manganese is a transition metal in group 7, period 4. Manganese is very flammable and dangerous with very strong intensity! It’s found in the earth’s mantle while having a melting point of 1246℉. The element manganese stimulates functions of…

Oxidation is a very interesting topic in today 's society. Infact it is a hot topic in many debates about budgets and even safety. This is because of oxidations most common form, rust. Most people are very familiar with rust as it affect our infrastructures, such as bridges, beams, ladders, pipes, and railings. Another big big effect that rust creates is in vehicles as almost everybody uses them in their day to day life. For some the rusting these objects can be dangerous if the right…

How does a variation in the concentration of metal ions of the cathode in a Zinc-Copper electrochemical cell affect the electrical potential? Introduction: In a highly technological and quickly developing society, it is imperative to innovation that basic components are understood and explored to further expansion and advancement. In order to understand how everyday necessities such as cars, computers, and cell phones are constantly powered, it must first be understood what is in a battery as…

in each trial of the experiment. N/A Dependent The voltage being produced by the two electrodes which is measured by the voltmeter N/A Controlled Concentration of the zinc nitrate solution. The concentration of zinc nitrate was kept at the same concentration of 0.1M. The solution was made by measuring out 3.788g±0.001g of zinc nitrate powder and a weighing balance was used to measure it. Then it was placed in 500 cm3 beaker.…

Percent Copper In Brass Lab Conclusion Emily Oleisky The purpose of this lab was to observe the amount of light a solution absorbs, and use the relationships in the Beer-Lambert Law to determine the quantity of a certain compound within a complex sample. First, the relationships between wavelength, concentration, and absorbance were determined. This lab focused on identifying the absorption of copper in various brass samples, and finding the percent copper in brass. In the first activity of the…

(Vanadium Electrolyte price). So is this a system that is worth it? With the cooling system needed to keep the system under ~50-60 degrees celsius and high priced vanadium if any is lost it is expensive to replace. The final type of Flow battery is the Zinc Bromine battery…

What will happen when zinc is placed in copper (II) sulfate? What will happen when copper is placed in copper (II) sulfate? Prediction It is predicted that when you place zinc and copper (II) sulfate a reaction will occur, resulting in a precipitation. The prediction about the copper (II) sulfate and copper is that nothing will happen. Hypothesis It is hypothesised that when zinc is placed in aqueous copper (II) sulfate, a single displacement reaction will occur as the zinc is in its elementary…

FOR more than two decades Wittenoom in WA’s Pilbara region was a mining stronghold. The small country town which lies around 1400kms northeast of Perth was also, at one stage, the only place in Australia that produced blue asbestos. But when demand for the deadly mineral began to wane and fears of serious health concerns began to emerge, the operation was shut down in 1966. However it was another decade before authorities realised the blue dust that swept throughout the town was extremely…