Reagent/Product Structure Hazards First Aid acetone Causes skin and eye irritations‚ hazardous when ingested or inhaled. The substance is toxic to central nervous system (CNS). The substance may be toxic to kidneys‚ the reproductive system‚ liver‚ skin. Repeated or prolonged exposure to the substance can produce target organs damage. . aniline Hazardous in case of skin contact (irritant‚ permeator)‚ of eye contact (irritant)‚ of ingestion‚ of inhalation. Severe overexposure can result
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containing a barrier of some sort to separate the NaHCO3 and the CH3COOH (Model 1) and the second model containing a “cup” or “pocket” taped to the wall of the plastic bag that would prevent the reactants form coming into contact (Model 2). We then measured arbitrary amounts of NaHCO3 using plastic weighing boats and an electronic scale. We poured the NaHCO3 from the plastic weighing boats into their own plastic bags. Using the measurements of the NaHCO3 ‚ we calculated the exact volumes of 6.0 M
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Experiment #8 – properties of Alcohols and Phenols Introduction As has been mentioned before‚ over 20 million organic compounds have been identified. If each substance had to be studied as an entity completely separate from all the other substances‚ the study of organic chemistry as a whole would be impossible; that is to say‚ even more impossible than you currently believe it to be. Fortunately‚ the subject can be organized and it is often organized around the concept of the functional group
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red on every attempt. 2. Reaction with acid Reaction with 10% NaOH Reaction with NaHCO3 Weak/Strong acid Benzoic acid + - Weak Phenol + + strong (+)-soluble (-)-insoluble This test was performed using benzoic acid and phenol. 2mL of water was placed on a test tube. 6 drops of the sample was added‚ then 10 drops of 10% NaOH. The mixture was examined. The process was repeated using 10% NaHCO3 instead of NaOH. Results were noted on the table above. B. Hydrolysis of Acyl compound
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procedure was adapted from the “Observation of Chemical and Physical Changes” LabPaq Lab manual (Hands-On Labs Version 42-01-82-00-03‚ 2015) Table 1 Well Chemical #1 (4 drops) Chemical #2 (4 drops) Observations: Chemical Change (Y/N) A1 NaHCO3 (Sodium Bicarbonate) HCl (Hydrochloric Acid) Bubbles‚ no change in color‚ clear‚ Y A2 NaOCl (Sodium Hypochlorite) KI (Potassium Iodide) Observation 1: clear‚ no color change.
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Introduction: The soybean is a species of legume native to East Asia‚ widely grown for its edible bean which has numerous uses. Soybeans are an important source of vegetable oil and protein worldwide. The beans contain significant amounts of alpha-linolenic acid‚ omega-6 fatty acid‚ and the isoflavones genistein and daidzein which claim able to fight against breast cancer‚ prostate cancer‚ menopausal symptoms and heart disease (Ruiz- Larrea et al.‚ 1997). In daily life‚ we take soya bean drink
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1 mole of any substance can be defined as: Amount of a substance that contains as many particles (atoms‚ molecules or ions) as there are atoms in 12 g of the 12C isotope Avogadro number or Avogadro constant (NA); equal to 6.022 × 1023 particles Example − 1 mole of oxygen atoms = 6.022 × 1023 atoms 1 mole of carbon dioxide molecules = 6.022 × 1023 molecules 1 mole of sodium chloride = 6.022 × 1023 formula units of sodium chloride Molar mass of a substance can be defined as: Mass of one mole
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Na2CO3(s)+CO2(g)+H2O(g). The was the only equation that matched up exactly with my data in terms of percentage. To start off with‚ when I balanced out the equation‚ I got 2 NaHCO3→ 1 Na2CO3(s)+ 1 CO2(g)+ 1 H2O(g). Therefore when I set up my stoichiometry problem I got 3.2 grams NaHCO3 over 1 x 1 mol NaHCO3 over 84.007g NaHCO3 x 1mol Na2CO3 over 2 mol NaHCO3 x 105.987g Na2CO3 x 1 mol Na2CO3. Hence‚ I multiplied 3.2 x 1 x 1 x 105.987 and got 339.1584. Afterwards‚ I divided 339.1584 by 84.007 and got 4.04. Then‚ I
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Flame Tests 12.01.2010 19.01.2010 Introduction The normal electron configuration of atoms or ions of an element is known as the “ground state”. In this most stable energy state‚ all electrons are in the lowest energy levels available. When atoms or ions in the ground state are heated to high temperatures‚ some electrons may absorb enough energy to allow them to “jump” to higher energy levels. The element is then said to be in the “excited state”. This excited configuration is unstable‚
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Lab 5: Preparation of Synthetic Banana Oil September 20th‚ 2012 Purpose: The main purpose of this experiment was to synthesize banana oil (isopentyl acetate.) Ester are often prepared by the Fischer esterification method‚ which involves heating a carboxylic acid with an alcohol in the presence of an acid catalyst. Theory: Synthesize isopentyl acetate by combining isopentyl alcohol with acetic acid and sulfuric acid and then heating the reaction mixture under reflux for an hour. The alcohol
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