Acetic acid

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  • Differentiate Acids And Bases Lab Report

    can we differentiate acids and bases? How do we know if a substance is an acid or a base? There are different methods to discover whether a substance is an acid or a base. One of the methods is by using an acid-base indicator or by identifying hydrogen or hydroxide ions in a substance’s chemical formula. Certain materials such as a plastic template, red litmus paper, blue litmus paper, phenolphthalein, universal indicator, and a pH chart can be used to help us distinguish acids and bases.…

    Words: 617 - Pages: 3
  • Henderson-Hasselbalch Analysis Lab

    determination of the pH of a buffer solution and the pKa for of a weak acid Introduction A practical was carried out to show how the Henderson-Hasselbalch equation works and to apply and hone the skills of pipetting, buffer-making, pH-meter use and graphing. The primary goal of the practical was to determine the pKa value of a weak acid. The Ka is an acid dissociation constant, it is a quantitative measure of the strength of an acid in solution. The pKa is defined as the negative log of the…

    Words: 1043 - Pages: 4
  • Differences Between Acids And Bases

    Introduction: Acids and bases are often described using the Bronsted-Lowry theory which states that acids are proton donors, while bases are proton acceptors (Thorne, 78). This means that an acid has additional H+ ion(s) that can be given, whereas a base lacks these ions and will accept them. Acids and bases can further classified as strong or weak. A weak acid, such as HF, will not ionize completely, meaning that only some of the H+ ions will be lost. A strong acid will however, will release…

    Words: 901 - Pages: 4
  • Synthesis Of Aspirin Essay

    aspirin Aspirin, also known as acetylsalicylic acid, is an aromatic compound containing both a carboxylic acid functional group and an ester functional group. Aspirin, being a monoprotic weak acid, is only slightly soluble in water and it can be prepared by reacting salicylic acid and acetic anhydride in the presence of an acid catalyst. 1.2: History of aspirin Aspirin was first produced about 110 years ago but the natural form, salicylic acid, found in plants (i.e. the willow and myrtle)…

    Words: 1003 - Pages: 5
  • Acid Value Of Saponification

    Saponification is a method used in treating a neutral fat with alkali, breaking it down to glycerol and fatty acids. The saponification value or saponification number is the amount of alkali needed to saponify the given quantity of fat or oil, expressed as mg potassium hydroxide to saponify 1 g of the sample. In this experiment, the researchers used chemicals such as ethanol, hydrochloric acid (HCl), potassium hydroxide (KOH) and phenolphthalein indicator. Laboratory Apparatuses and Equipment…

    Words: 1035 - Pages: 5
  • Chemical Equilibrium Lab

    equilibrium has been tampered with. Throughout all the labs, we observed that with different chemicals we have different directions of shift. From acids to bases, we see that direction of shift can vary which leads to different conclusions. We also investigated the effect of adding or removing a stress and temperature. We discovered that all weak acids partially ionize in a water solution. The materials we gathered were used by all members of our group. We used two reagent trays for…

    Words: 1620 - Pages: 7
  • Banana Peel Synthesis

    Peels were cut into 1-inch pieces and was heated them in 110- to 120-degree-Fahrenheit water on the stove. Peels were packed into the press and the oil was squeezed into a food container. Next is fabricating of the edible film which adds 1 tsp. of acetic acid as disinfectant, 1 tsp. of banana peel starch, with a constant amount of glycerol (1 tsp.) and 1 tsp. of orange peel essential oil. The method was repeated for three times but with different amount of starch, the second was 2 tsp., the…

    Words: 775 - Pages: 4
  • Methyl Paraben Essay

    as central nervous system stimulant (British Pharmacopoeia 2009). • Methyl paraben was generously donated by Arab Pharmaceutical Manufacturing Company. Methyl paraben is methyl-4-hydroxybenzoate, prepared by the esterification of p-hydroxybenzoic acid with methanol. It occurs as colorless crystals or a white crystalline powder. It is odorless or almost odorless and has a slight burning taste (Rowe et al., 2009). Methyl paraben is very slightly soluble in water, freely soluble in alcohol and…

    Words: 1172 - Pages: 5
  • Thermometric Titration Lab Report

    (Representing the results obtained from the experiment) Known Acid HCl 1 mol dm-3 (± 0.100) Unknown Acid HCl 0.76 mol dm-3 (± 0.100) Highest Temperature (Time) 28.5 (190s) 28.6 (235s) Lowest Temperature (Time) 22.9 (55s) 22.9 (55s) Sample Calculation for the Unknown Concentration C1V1 = C2V2 1 (190 - 505) = C2 (235 - 505) 1 28.0 = C2 37.0 C2 = 2837 C2 = 0.760 mol dm-3 (±0.0500) Sample Calculation for the amount of mole in Unknown Acid Mole = Concentration Volume Mole = 0.760…

    Words: 1009 - Pages: 5
  • Reeox Titration Lab Report

    [mol/dm3] sulphuric acid was added to the flask, and shaken well with the stopper. The name of the members and the date was written on the flask, and was left for a week for the iron sulphate tablets to fully dissolve in the acid. After the tablets have fully dissolved, the whole solution was filtered using a filter paper and a funnel into a 100 [cm2] volumetric flask. The remaining residue in the filter paper was rinsed with a small amount of distilled water. Then, sulphuric acid was added to…

    Words: 1077 - Pages: 5
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