Goal: to post about 10 chemicals‚ what they do‚ and how they are used Total Word Count In This Document: 1531 Title: ?10 Chemicals? Menthol Menthol is a synthetically-made organic compound extracted from natural plants like corn mint‚ peppermint‚ and other mint oils. It is a waxy and crystalline substance that is either clear or white in color. Due to its local anesthetic and counter-irritant qualities‚ it is widely used for a variety of purposes like soothing minor throat irritations‚ such as
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CHEMISTRY LABORATORY 786 Pre-Lab Extraction and Filtration 790 1-1 Mixture Separation 792 1-2 Water Purification 794 3-1 Conservation of Mass 798 4-1 Flame Tests 801 Pre-Lab Gravimetric Analysis 828 13-1 Separation of Pen Inks by Paper Chromatography 830 13-2 Colorimetry and Molarity 834 14-1 Testing Water 838 804 7-1 Separation of Salts by Fractional Crystallization 806 7-2 Naming Ionic Compounds 810 7-3 Determining the Empirical
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Separating a Mixture of Compounds Exp. No. 2 name Chemistry 145 February 2‚ 2014 I. Purpose The purpose of this experiment was to separate this mixture into components‚ determine the mass and percentage of each component. In addition to test the accuracy of an alternative method of subtraction to find the mass of the sodium chloride directly. Start with a mixture of sand (SiO2)‚ sodium chloride (NaCl)‚ and ammonium chloride (NH4Cl)‚ and use these separation processes: sublimation filtration
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crystallization. The formula of a hydrate consists of the formula of the anhydrous (without water) compound followed by a dot‚ then the specific number of water molecules. The dot in the formula indicates a type of bond‚ while strong‚ can usually be broken with the application of moderately high temperature. An example of such a formula is CaSO4•2H2O‚ commonly known as gypsum. Here‚ the anhydrous compound is CaSO4 and 2 in the formula represents the specific number of water molecules for each unit of
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General College Chemistry LabPaq / Published by: Hands-On Labs‚ Inc. sales@HOLscience.com / www.HOLscience.com / Toll Free 866.206.0773 A Laboratory Manual of Small-Scale Experiments for the Independent Study of General College Chemistry 50-0123-CK-02 LabPaq® is a registered trademark of Hands-On Labs‚ Inc. (HOL). The LabPaq referenced in this manual is produced by Hands-On Labs‚ Inc. which holds and reserves all copyrights on the intellectual properties associated with the LabPaq’s
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Melting point 1. What two effects do impurities have on the melting point of an organic compound? Soluble impurities affect the melting point of a solid in the following manner. a. The presence of an impurity in the molten compound reduces its vapor pressure thus lowering the melting point of the compound. b. Broaden the melting point range. 2. For what tow purpose are melting points routinely used a. To determine the identity of an organic solid. b. To determine the purity of an organic solid
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Synthetic Organic Compounds Synthetic organic compounds are a relatively new discovery in the field of chemistry but have had a major impact on the world. These compounds differ from organic compounds as they are manmade. Synthetic organic compounds have been damaging people and the environment since they were created. Synthetic compounds such as chemical pesticides‚ herbicides and fertilizers have been beneficial to food production and
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Making Choices Guide Part II Long Term Care planning is a topic everyone will eventually face‚ have to discuss and make choices about in their life. Whether it is for you or a family member‚ someone will have to consider what lifestyle changes they will face and sometimes have to change in order to meet individual care needs and safety concerns in order to retain a safe and healthy lifestyle. “Ethical issues are central to any discussion or reflection on aging and health care” (Ludwick
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Toxicology Lab 1. In this investigation‚ a wide range of concentrations of Sodium Chloride (NaCl) solution were created and the effects that they had on radish seeds were tested. This ultimately created a doseresponse experiment in which it was detectable whether or not radish seeds were a reliable bioassay for the toxicity of NaCl. The goal of this experiment was to determine a correlation between toxicity and seed germination/radicle
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Lab Report 2: Quantitative Analysis Finding the Percentage Composition of Nickel in an Unknown Compound Introduction: This section of lab was about using analytical chemistry and learning how to identify the amount of nickel in an unknown substance. The purpose was to use gravimetric analysis to quantitatively separate and weigh insoluble reaction products as well as utilize the mole method to compute the amount and percentage of nickel in an unknown nickel sample. The chemical reaction that took
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