Sodium chloride

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  • Synthesis Of Ferric Chloride By Sodium Borohydride

    Synthesis of reactive iron Chemical reduction method of Ferric chloride by sodium borohydride following reaction (Eq.1), was used to synthesize ZVI [14]. 〖2FeCl〗_3+〖6NaBH〗_4+〖18H〗_2 O→〖2Fe〗^0+〖21H〗_2+〖6B(OH)〗_3+6NaCl (1) Ferric chloride hexahydrate solution was prepared by dissolving 5 g of FeCl_3.H_2 O (99.0%, Junsei Chemical Co., Japan) in 125 mL of deoxygenated deionized (DI) water. Moreover, 3.5 g of Sodium borohydride (NaBH_4, 98.0%, Sigma–Aldrich Inc., USA) were dissolved in 125 mL of (DI) water and pumped dropwise into a 500 mL four-nick flask kept in water bath with stirring (at 25 ± 0.5° C and 250 rpm) containing the former ferric chloride solution using a roller pump at a rate of 20 mL/min. In order to reduce the oxidation of ZVI, anaerobic environment was provided through a continuous nitrogen gas purging during the synthesis. With regard of ensuring a complete reaction, the aging time of the mixture inside the four-nick flask was 20 min. The black iron precipitates were collected by vacuum filtration and then washed three times with DI water and anhydrous ethanol. Batch experiments All batch experiments were conducted in 300 mL conical flasks sealed with screw caps at room temperature (25 ± 0.5°), and mixed with a standard magnetic stirrer…

    Words: 849 - Pages: 4
  • Temperature Of Sugar And Calorimetry Essay

    The positive Na+ ions were attracted to the oxygen (negative) end of the water molecules, and the negative Cl- ions were attracted to the hydrogen (positive) end of the water molecules. As an end result, the ionic bond between the sodium and the chloride was broken. CuSO4(s) ⇔ Cu+2(aq) + SO4-2(aq) Like the sodium chloride, the copper sulphate was split into its individual ionic components. The positive Cu+2 ions were attracted to the oxygen (negative) end of the water molecules, and the…

    Words: 1650 - Pages: 7
  • Precipitation Reactions Lab Report

    a substance that is not aqueous was formed. The reactions that did not form a precipitate were DNR, which means that they did not react. At station one barium chloride and potassium nitrate did not react but barium chloride and silver nitrate reacted to form barium nitrate and silver chloride. The precipitate at station one was silver chloride. Both reactions at station two did not react. Station three had a reaction occur between sodium carbonate and calcium sulfate forming sodium sulfate and…

    Words: 939 - Pages: 4
  • Properties Of Salts And Molecules

    opposite charge. Sodium Chloride and Potassium Bromide are both salts that have an ionic compound. Both elements have the properties of salts which include soluble in water, conductive, and a relatively high melting point. Molecules and Sugar molecules are covalent compounds. A covalent compound is made when two or more nonmetal atoms bond. They bond by sharing valence electrons. The shared valence electrons is called a covalent bond. Covalent bonds are formed when two atoms begin sharing…

    Words: 1040 - Pages: 5
  • Anion Test Lab Report

    According to Herman and Schafer, it is important to remember that precipitates are ionic solid products of a reaction and are formed when cations and anions intermix in an aqueous solution.3 Some reactions vary based on temperature or solute concentration. The determination of precipitates also come from solubility rules. According to Cooper, almost all sodium, potassium, and ammonium salts are soluble which mean that they will not form a precipitate.1 All chlorides, bromides, iodides, and…

    Words: 1365 - Pages: 6
  • Water Solubility Experiment

    Cassamajor, Kimberly P1 R1 S4 Science Fair Research Paper Honors Chemistry Group Number 8 Research Paper The science fair topic at hand is whether or not chemical compounds affect water 's heat resistance/reception. In other words, how does the temperature of water (H2O) change when chemical compounds - such as sodium chloride and sucrose - are added? In this experiment, the independent variable is the chemical compound being tested while the dependent variable is the temperature of the…

    Words: 1124 - Pages: 5
  • Essay On Osmosis Through Living Cells

    objective of this experiment is to determine the effects of on a cell by placing it in solutions of different concentration.The goal is to determine tonicity of solution. Hypothesis 1 . Osmosis will not pull water into the cell if the cell is placed in an environment with equal solute concentration. 2.Osmosis can pull water out of the cell if the cell is placed in an environment with a higher solute concentration. 3.Osmosis can pull water into the cell if the cell is placed in an…

    Words: 1588 - Pages: 7
  • Unknown Ionic Compounds Lab Report

    By combining the unknown compound with an acid, a base, and two salts, its reactivity was determined. Reacting the unknown compound with sulfuric acid (H2SO4) produced no visible reaction (precipitate), although the pH of the resulting solution was very acidic. Combining the unknown compound with sodium hydroxide (NaOH), a strong base, also had no visible reaction. However, the resulting solution was a lot more basic. Reacting the unknown compound with sodium nitrate (NaNO3), a salt, did not…

    Words: 1428 - Pages: 6
  • Spinach Lab Report

    [3] For the sake of extraction, spinach is first dehydrated with 100% ethanol so that extraction is more efficient. It is then extracted using dichloromethane (DCM) and maceration. The chlorophyll and β-carotene pigments are dissolved into the organic DCM layer which is polar and does not mix with water. The solution is then washed with sodium chloride (NaCl) to draw out any remaining water left in the solution that was not dried out by the ethanol. [1] Water will move toward the more hypertonic…

    Words: 733 - Pages: 3
  • Melting Ice Essay

    of ice on roads and sidewalks during the winter. The composition of each of the types of salts, including table salt, sea salt, and rock salt. Table salt is almost entirely pure sodium chloride. It is fine-grained and is of high purity. When sold as commercial table salt it contains several added chemicals, such as potassium iodide, magnesium oxide, and sodium alumino-silicate. For our experiment, we used commercial table salt. Unlike table salt, sea salt does not have any additives; instead it…

    Words: 3430 - Pages: 14
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