Salicylic acid Essays

  • Salicylic Acid Investigation

    1308 Words  | 6 Pages

    1. Aims a) To find the molar absorptivity of salicylic acid by plotting a graph of absorbance against the concentration of salicylic acid, using the standard solution. b) To find the concentration of aspirin at the various time intervals using the molar absorptivity value in the previous part, initial concentration of aspirin and the concentration of salicylic acid obtained from the decomposition of the aspirin pill. c) Lastly, to calculate the rate constant of the decomposition of aspirin by plotting

  • Salicylic Acid Lab Report

    1286 Words  | 6 Pages

    2-hydroxybenzoic acid, C6H4(OH)COOH - commercially known as salicylic acid exists as a colourless, crystalline organic carboxylic acid. It is partially soluble in water and completely soluble in ethanol and ether. This acid is very commonly used in the preparation of its ester derivatives as it contains both a hydroxyl (-OH) and a carboxylic (-COOH) group. Due to the presence of these functional groups, it is able to react with both an acid and an alcohol.1 (“Salicylic acid”). The very first preparation

  • A Summary Of Salicylic Acid

    934 Words  | 4 Pages

    Preparing the stock solution-The stock solution of Salicylic acid needed to be prepared well in advance before the experiment began. To do so, 1.73g of Salicylic Acid was weighed using the weighing balance. After Salicylic acid was weighed, it was transferred to a standard flask of 100cm3 and, 100cm3 of pure Ethanol (C2H5OH), was poured into the standard flask that contained the Salicylic acid. Shaking the flask gently for C2H5OH and Salicylic acid to dissolve and then keeping it covered so that

  • Polyploidy Plant Experiment

    956 Words  | 4 Pages

    plants, and are considered a process of evolution as they have evolved in order to adapt to the change in the environment. In this investigation we will be observing the results of both types of plants under harsh conditions. It is preferable that the Polyploidy plant will survive harsher conditions as they have actually developed due to the change in their biosphere therefore making it more likely that they will survive unfavourable conditions. In this experiment we will be taking a look at which

  • Percentage Yield Lab Report

    768 Words  | 4 Pages

    1) Percentage yield experiment: First we measured 20cm3 of sulphuric acid into a beaker using a measuring cylinder, this will help us determine the percentage yield at the end of the experiment. We then heated the beaker containing the sulphuric acid using a Bunsen burner in order to heat it up for the copper oxide to mix with. We then weighed out 1.02g of copper oxide and added it to the acid and stirred it whilst doing so, we did that until the liquid turned blue, this proves that the chemicals

  • Skin Informative Speech

    719 Words  | 3 Pages

    Most of you must have an experience in feeling sweating, feeling burn, and skin turning to red, as red as skin of shrimp when it was being boiling when being exposed to direct sunlight. All of you must feel not comfortable with those conditions, right? So, today I am going to talk about the sunburn problem and the solution to this problem. I want to tell you about this as I am obsessed with health, skin care and skin beauty and I have gained much information from many sources that I have read. So

  • Aspirin Melting Point Analysis

    938 Words  | 4 Pages

    to be between 126-129 ˚C. This temperature range of initial to final melting point has a small and sharp temperature range of only 3˚C, which is within the acceptable limits of the 128-137˚C1 literature value for Aspirin (Acetylsalicylic Acid/2-acetoxybenzoic acid), if located slightly toward the beginning of the literature melting temperature range. Therefore, the narrow melting point range, which falls within the standard literature value range results, indicate the reliability purity of the sample

  • Phosphoric Acid And Acetylsalicylic Acid Lab Report

    2007 Words  | 9 Pages

    Results and Discussion One of the objectives of this exercise is to synthesize acetylsalicylic acid (aspirin) from salicylic acid. The mechanism for this synthesis is through nucleophilic acyl substitution. Acetic anhydride was the acetylation reagent used with the salicylic acid. The mechanisms and the reaction involved in the synthesis are seen in the following figure. 1.00 gram of fine white salicylic acid powder was weighed in a clean, dry 125mL Erlenmeyer flask. 3mL of strong smelling, clear colorless

  • Recrystallisation Of Aspirin Lab Report

    1772 Words  | 8 Pages

    (acetylsalicylic acid) is an aromatic compound that contains an ester- functional group and a carboxylic acid- functional group. Aspirin is commonly used as a pain reliever (analgesic), an anti-inflammatory, an anti-coagulant (prevent platelet aggregation) and an antipyretic (to reduce fever) pill. It helps to prevent strokes, heart attacks and blood clot formation. It can be produced from salicylic acid and acetic anhydride, with acetic acid as its by-product. However, salicylic acid consists of the

  • Iodine Lab Report

    731 Words  | 3 Pages

    Using the equation of the titration in the experiment (Equation 1), calculate the number of moles of the ascorbic acid reacting. 4. Then proceed to calculating the concentration in mol. dm3 of the ascorbic acid in the solutions that was obtained. Data Collection and Processing Raw Data Table 1: Amount of Iodine Reacting (± 0.05cm3) in the titration FT 1 FT 2 FT 3 FT 4 FT 5 Trial 1 1.9 1.8 1.8 1.5 1.6 Trial 2

  • Methanol Lab Report

    1257 Words  | 6 Pages

    In this experiment, extraction was used as a separation technique to separate the acid, base, and neutral compounds. In extraction, two immiscible solvents with opposite polarities are used to dissolve different parts of the solute with different polarities, so they form two distinct liquid layers. In this experiment, methanol, an organic solvent, and an aqueous solution were used as the two immiscible solvents. The extraction solvent must also be capable of dissolving one of the mixture components

  • Summary: Nonsteroidal Anti-Acids

    1030 Words  | 5 Pages

    nonsteroidal anti-inflammatory drugs (NSAIDs) are structurally derived from arylacetic acids. These compounds are often referred to as the “profens” based on the suffix of the prototype member, ibuprofen. These agents are all strong organic acids (pKa = 3-5) and consequently form water soluble salts with alkaline reagents. All of these compounds are mostly ionized at physiologic pH and more lipophilic than ASA or salicylic acid. In order to increases cyclooxygenase inhibitory activity and reduces toxicity

  • Chemistry Of Sodium Bicarbonate

    717 Words  | 3 Pages

    compound. Qualitative tests The addition of hydrochloric acid to solutions containing carbonate or bicarbonate ions or to solid samples of carbonates and bicarbonates causes the rapid evolution (production) of carbon dioxide gas. The equations for the reaction of acid with these ions are: H + (aq) + HCO3 - (aq) → H2O(l) + CO2(g) 2H+ (aq) + CO3 -2 (aq) → H2O(l) + CO2(g) Solutions containing hydrogencarbonate ions react with hydrochloric acid, producing carbon dioxide gas. For example, NaHCO3 + HCl

  • Essay On Baking Soda

    1511 Words  | 7 Pages

    Chef Level Cooking with Baking Soda: This article portrays the usefulness of baking soda in different aspects of food preparation. In here the role of baking soda in food odor removal will be tackled and explained. Its effect on meat tenderization will also be explored. Lastly, we will see how baking soda plays the important role in some recipes like omelet. The normal thought of including baking soda in most food preparation is due to its chemical component that has a good reaction with some ingredients

  • Trihalomethane Research Paper

    2953 Words  | 12 Pages

    Free chlorine is the chlorine available to sterilise the water and is usually represented by hypochlorous acid and hypochlorite ions. When a solution containing free chlorine is exposed to ultraviolet light both hypochlorous acid and hypochlorite ions are broken down as shown below: 2OC〖l^-〗_((aq.))+u.v.→2C〖l^-〗_((aq.))+〖O_2〗_((g)) 2HOCl_((aq.))+u.v.→2HCl_((aq.))+〖O_2〗_((g)) When chloramine is exposed to high-energy

  • Cobalt Additive Lab Report

    1067 Words  | 5 Pages

    In order to investigate the effect of cobalt additive on the phosphate coatings, the surface morphology of these coatings was evaluated. Scanning electron microscopy images for the samples containing cobalt additive are shown in Fig. 1. Based on the illustrated pictures (1-a), phosphate coating without additive has more cracks than the other samples. By adding the additive, the amount of crack in the coating’s structure decreased; the lowest amount of cracks was observed for sample containing 3g/lit

  • Polytetrafluoroethylene Lab Report

    820 Words  | 4 Pages

    Teflon was discovered by Dupont chemist. When Dr Roy J. Plunkett use polytetrafluoroethylene to make an experiment with chemical refrigerants, he tries to pump the gas tetrafluoroethylene into hydrochloric acid and he does not see anything happen in the outside. When he hold the cylinder that contain tetrafluoroethylene, he sees the cylinder still heavy. After that, he thinks it is a good idea to cut the cylinder to see what happen in the inside . When he cut it out, he sees the tetrafluoroethylene

  • 1.2 Agression Analysis Test

    1506 Words  | 7 Pages

    1.2 Statistical Testing A –Correlation check between the Start measure and End measure for those given Calcium. When running a simple scatterplot diagram so as to visually check the correlation of start and end measure for calcium, it would appear that there is no obvious correlation. Calcium Correlationsa Starting Value End Value Starting Value Pearson Correlation 1 .602 Sig. (2-tailed) .065 N 10 10 End Value Pearson Correlation .602 1 Sig. (2-tailed) .065 N 10 10 a. Treatment type

  • Lactose Intolerance Research Paper

    1258 Words  | 6 Pages

    How to Handle Lactose Intolerance - 18 Home Remedies 1. Apple cider vinegar People who find themselves intolerant to lactose may start using apple cider vinegar. It improves the digestion incredibly and neutralizes the acids present in the stomach. Take a tablespoon of it along with a glass filled with water once every day for several weeks. Apple cider vinegar is specifically helpful during the initial stages. 2. Kefir Kefir is a probiotic that may have a beneficial action on the digestive system

  • Important Essay: The Importance Of Oral Health

    1744 Words  | 7 Pages

    of disease. Equally the quality of life and a person’s ability to eat, sleep, and perform without soreness affects children with poor oral health. Tooth decay in the mouth results when bacteria metabolizes carbohydrates to secrete acid. Regular teeth are exposed to acid leading to mineral loss from tooth and resulting in cavities. A bacterium causes gingivitis and periodontal disease due to lack of routine oral hygiene methods. Bacteria-containing dental plaque shapes on tooth surfaces and induces