Hydrochloric acid

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  • Copper Chloride Lab Report

    (CuO) and two hydrochloric acids (HCl) and they react together and form CuCl2 and water. A very simple method that does not need much work. The next one is a neutralization reaction and a method that produces more water than the previous reaction. The reactants of this method include copper (II) hydroxide (Cu(OH)2) and two hydrochloric acids (HCl) producing a copper (II) chloride compound and two waters. There is a displacement reaction with copper (II) chloride as well. The weaker acid left…

    Words: 967 - Pages: 4
  • Lab Report: Classifying Chemical Reactions

    “Classifying Chemical Reactions - Lab Report” I - Introduction - Chemistry is the study of the composition, structure, properties and change of matter. In chemistry, chemical and physical changes are used to help scientists understand how different substances react given various circumstances. A chemical change is any change resulting in the formation of a new chemical substance(s). A physical property is any change that does not involve the chemical makeup of a substance at all. In total…

    Words: 1370 - Pages: 6
  • Water Conductivity Summary

    pH is the measure of acidity or basicity of the solution. pH is the level of acidity on a scale of 0 to 14 in which 0 is the most acidic while 14 is the most basic. To put it in perspective, the pH value of pure water is 7, the pH value of hydrochloric acid is 0, and sodium hydroxide is around 14. The range of 0 to 14 uses the practical limits that pH puts on some solutions. This means that some solutions are able to exceed this scale and reach pH levels of -1 and 15, but these pH’s are not…

    Words: 1891 - Pages: 8
  • Galvanized Nails, Quality Control And Green Chemistry Summary

    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 acid that stripped the zinc on the nails. Nails are dipped in zinc to prevent rusting. The amount of zinc placed on these nails has to comply with industry standards. A high standard of zinc coating on…

    Words: 813 - Pages: 4
  • Tin And Sulfur

    The unique composition and purity of as-deposited SnS2 thin films prepared with different precursor solution volumes from 5 ml to 25ml were determined by EDX analysis as shown in fig 5, which brought out the presence of Tin and Sulfur as elementary components. Two different peaks were observed in the spectrums from fig 5 relevant to the tin and sulfur. The EDX spectra show that the weight percentage for the film prepared at the precursor solution volume of 5 ml is 36.8% and 63.2%, which is…

    Words: 1943 - Pages: 8
  • What Is The Importance Of Water Essay

    Water is a transparent, odourless, tasteless liquid, a compound of hydrogen and oxygen freezing at 30°F or 0°C and boiling at 212°F or 100°C, that in a more or less impure state constitutes rain, oceans, lakes, rivers etc; it contain 11188% of hydrogen and 88.812% of oxygen by weight. (Dictionary.com) The Earth is surrounded by 70% of water, however, that 70% is composed of salt water and fresh water. The salt water is made up of 97% and fresh water is 3%. 2% of the fresh water is frozen up in…

    Words: 1495 - Pages: 6
  • Liquid Evaporation Experiment

    different concentrations of nitric acid (measured in molars) with copper powder (grams) affect the rate of reaction (measured in seconds) measured using a stopwatch? Hypothesis: The copper powder placed in the most concentrated amount of nitric acid, measured in molar, will take the least amount of time, measured in seconds, to react compared to the amounts of copper powder in other less concentrated amounts of nitric acid. This is as if the concentration of nitric acid is increased, then the…

    Words: 1715 - Pages: 7
  • Baccl2 Test Lab Report

    Introduction Unknown substances can be found everywhere. Whether it is the mysterious crust on the desk, or the sticky material found at the bottom of an unwashed bowl, there is a curiosity as to what that substance could be. In science, the unknown substance is called the analyte (1). The unknown substance, taken from the Gulf of Mexico, is tested to determine the true identity of the substance. In order to find the analyte, there are two different scientific methods that can be applied. The…

    Words: 2265 - Pages: 9
  • Bomb Calorimeter Experiment Essay

    ABSTRACT Within this experiment, the use of a bomb calorimeter was required in order to determine the heat capacity of the system through the combustion of three separate trials of benzoic acid. The resulting heat capacity values for each trial were averaged, with a standard deviation found as well. This was then used to work backwards, for a naphthalene trial, in order to calculate the change in energy (∆U) and the change of enthalpy (∆H). The accepted value for the change in enthalpy of…

    Words: 1399 - Pages: 6
  • Platelet Poor Clasma Case Study

    phospholipid (cephalin) and a contact activator (e.g.: Kaolin, ellagic acid) are added followed by calcium (all pre-warmed to 37 degrees Celsius). Addition of calcium initiates clotting and timing begins. The APTT measures the time required to regenerate thrombin and fibrin polymers via the intrinsic and common pathways. Reagents:  Platelet poor plasma (PPP)  Surface activator: example; Kaolin , micronized silica, ellagic acid, celite  Phospholipid: example; cephalin- to replace platelet…

    Words: 1142 - Pages: 5
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