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  • Zinc Iodine Experiment

    Title: Stoichiometry to Calculate Reaction of Zinc and Iodine and Law of Conservation of Mass Authors: Sang Nguyen and Sami Biro Introduction II. Materials and Methods A. Materials Zinc (Zn), iodine (I2), acetone (C3H6O), acetic acid (C2H4O2) and zinc iodide (ZnI2) were used to conduct this experiment in order to confirm the validity of the law of conservation of mass as well as to use Stoichiometry to calculate the reaction between zinc and iodine. There are some precautions that one must consider before handling and using these specific chemicals. All of the chemicals used impose at the minimal, hazard to skin and eyes. However, acetic acid in particular can be very hazardous with skin, eyes and inhalation and can potentially damage tissues according to the MSDS. B. Method 1 To set up the reaction between zinc and iodine (known as trial 1), 2.0 grams of zinc was first obtained and placed into a labeled test tube 1. After, 2.0 grams of iodine was used as well in the tube. Then, 5mL of dilute…

    Words: 830 - Pages: 4
  • Zinc Elements Lab

    Identities of Zinc, Sodium, Beryllium, Copper and Boron By: Shreya Uppala, Lizzy Jolly, and Kyrie Harrell Results: The first element we tested was zinc. Since zinc was already known, the density was stated to be 7.13g/mL and the hardness was a 2.5 based on the Mohs Hardness Scale. No magnetic attraction was observed when in contact with a magnet. Zinc had a shiny appearance with a light gray color and the strips of zinc added to solution were approximately 5 cm. When zinc was tested with water…

    Words: 1009 - Pages: 5
  • Physical And Chemical Properties Of Zinc

    industries, the element zinc exists as a crucial factor within the world’s scientific realm. This bluish-white, lustrous metal was previously used in various industrial alloys and for medicinal purposes as early as 2,500 years ago by the Romans and Palestinians (“Zinc,” 2016). Greater rates of zinc production then began in India during the 13th century by heating mineral calamine with wool, yet no reference to it being its own discrete metal with its own scientific properties was made until…

    Words: 1228 - Pages: 5
  • Summary On Zinc Oxide Nanoparticles With Defects

    Abstract: This paper provides a brief summary of existing article Zinc Oxide Nanoparticles with Defects by Vladislav Ischenko,Sebastian Polarz,Dirk Grote,Victorina Sravarache,Karin Fink,and Matthias Driess. This paper discusses the importance of a nanoscale ZnO with defects in its structure. The article also provides a broad analysis of ZnO nanoparticles using a consolidation of techniques and the resulting data is summarised in this review. The paper gives the realization of when a…

    Words: 1986 - Pages: 8
  • Zinc-Copper Electrochemical Cell Affect The Energy Potential

    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 well as what happens…

    Words: 1164 - Pages: 5
  • Essay On Zinc

    Zinc is the member of the first row transition series of elements, consisting of Sc, Ti, Cr, Mn, Co, Ni, Cu, Zn, Cd and Hg. All these elements belong to group 12 of periodic table. Zinc has an atomic number 30, an atomic mass of 65 and one main oxidation state (+2). Zinc has five nature isotopes . Zinc is the 24th most abundant element in the earth’s crust. Its properties is very similar to Cd.Zinc is very useful in biological systems. Zinc also is involved in many biochemical processes that…

    Words: 359 - Pages: 2
  • Percent Yield Of Copper And Calorimetry Essay

    To perform the dehydration reaction, the solution containing was heated under bunsen burner. This heat breaks down the molecular bonds of to usually from Another dissolution reaction was performed in order to convert Cu into aqueous state by adding 3M sulfuric acid. The two H+ in sulfuric acid reacts with the O in CuO to form This solution was filtered by a vacuum to remove the sulfur. The filtrate contained Cu in an aqueous form and was transfer into a new beaker. Lastly, Zinc was…

    Words: 756 - Pages: 4
  • Metal Resistance Essay

    resistance in some gram-positive bacteria was also found to be mediated by CadA-like proteins (Liu et al., 1997). In S. cerevisiae, cadmium is bound by glutathione, and the resulting cadmium-bis-glutathione to complex is transported by an ABC transporter the YCF1p transporter, into the vacuole (Li et al., 1996; Li et al., 1997). This may be a general principle in all eukaryotes. The multidrug-resistance-associated protein from man may complement YCF1 mutation with respect to cadmium resistance…

    Words: 1630 - Pages: 7
  • Role Of Purification In SA Precious Metals (SA Pty) Ltd.

    running through the AgCl grains. The Ohmic resistance of the continuous AgCl layer restricted the dissolution of the silver substrate. At high current densities and when the AgCl layer is thick, the conduction mechanism transits from extrinsic, i.e. via electrolyte in the micro-channels, to intrinsic, i.e. via AgCl solid phase. Metallic silver can also be recovered by cementation (Betzel, 1983 et al) using a more active metal, generally zinc, iron, aluminum or copper. When two or more systems…

    Words: 1813 - Pages: 8
  • Galvanized Nails, Quality Control And Green Chemistry Summary

    and Green Chemistry Introduction: In this lab, we handled acidic chemicals that needed to be disposed of upon completion of the lab. We disposed of these chemicals according to safety policies and green chemistry policies. Green Chemistry is the practice of chemistry in an environmentally safe way to prevent pollution. We used green chemistry to minimize the amount of waste we were to be creating. We ended up creating waste from degalvanizing nails. There was a 6 molar solution of hydrochloric…

    Words: 813 - Pages: 4
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