Acetic acid Essays & Research Papers

Best Acetic acid Essays

  • Acetic Acid - 6586 Words
    Vol. 1 ACETIC ACID 115 ACETIC ACID 1. Introduction Acetic acid [64-19-7], CH3COOH, is a corrosive organic acid having a sharp odor, burning taste, and pernicious blistering properties. It is found in ocean water, oilfield brines, rain, and at trace concentrations in many plant and animal liquids. It is central to all biological energy pathways. Fermentation of fruit and vegetable juices yields 2–12% acetic acid solutions, usually called vinegar (qv). Any sugar-containing sap or juice...
    6,586 Words | 19 Pages
  • Acetic Acid Msds - 376 Words
    100056 Acetic acid (glacial) 100% suitable for use as excipient EMPROVE® exp Ph Eur,BP,JP,USP,E 260 For general questions please contact our Customer Service: Merck KGaA Frankfurter Str. 250 64293 Darmstadt Germany Phone: +49 6151 72-0 Fax: +49 6151 72 2000 01 March 2014 Product number Packaging Qty/Pk 1000562500 Glass bottle 2.5 l 1000569025 Plastic container 25 l 1000569190 Plastic barrel 190 l Accessories 101595 Chemizorb® H+ Absorbent and neutralizer for spilled...
    376 Words | 7 Pages
  • Acid Dissociation Constant and Acetic Acid
    CHM1022 Tutorial 2 – Semester 2, 2012 (Chemical Equilibria) 1. The reaction 2 HCl(g) +I2(s) [pic] 2 HI (g) + Cl2(g) has Kc = 1.0 x 10-34 at 25˚C. If a 1.00 L reaction vessel initially contains 0.100 mol of each HCl and solid I2, what are the concentrations of HI and Cl2 at equilibrium? 2. Consider the following gas-phase reaction and equilibrium constant at 25 oC: 4 HCl(g) + O2(g) [pic] 2 Cl2(g) + 2 H2O(g) The concentrations of all species were measured at a...
    292 Words | 2 Pages
  • Titration of Acetic Acid in Vinegar
    Lab 12: Titration of Acetic Acid in Vinegar Abstract: To lesarn how to titrate chemicals in a lab. Also to be able to determine the concentration of an acetic acid solution. Purpose: To learn how to titrate, and calulate the concentration of an acetiuc acid solution. In this case the concentration of vinegar, which is diluted acetic acid. Hypothesis: The sodium hydroxide used in this titration would balance out the acetic acid in vinegar. The phenolpthalein, a acid –base color...
    1,001 Words | 4 Pages
  • All Acetic acid Essays

  • Acetic Acid and Ink - 1060 Words
    TEABAG EXTRACT AS AN ALTERNATIVE FOR INK An Investigatory Project Chapters 1- 3 Submitted by: Alfonso, Manuela Fairbanks Garcia, Tonica Paga Cho, Jung Hun Lat, Manuel Miguel Feliciano November 2013 Chapter I Introduction A. Background of the Study The group will conduct the study because the group noticed that teabag extract is dark in colour and it can be use to make ink, and also the group noticed that teabags are made from natural resources. Some...
    1,060 Words | 5 Pages
  • Titration of Acetic Acid - 1591 Words
    Titration for Acetic Acid in Vinegar Purpose: The Primary Purpose of this Experiment is to Determine the Percent Content of Acetic Acid in a Household Bottle of President’s Choice Vinegar, using Titration Techniques. In addition, a Secondary Purpose for this Experiment that Derives Directly from the Primary Purpose is to Gain Hands On Experience in Titration Techniques, as a Vital Tool in our Quest to Understanding the Chemical Aspect of the World around Us. Procedure Conducting a...
    1,591 Words | 5 Pages
  • Acetic Acid and Buffer - 1116 Words
    What is buffer? -A buffer is an aqueous solution that has a highly stable pH. If you add acid or base to a buffered solution, its pH will not change significantly. Similarly, adding water to a buffer or allowing water to evaporate will not change the pH of a buffer. Examples of buffer problems: Problem example 1: The first step involves calculating the proportion and amounts of the two ionic species in the buffer. The buffer contains a total of 10 litres x 0.045 M = 0.45 mole of phosphate...
    1,116 Words | 4 Pages
  • production of acetic acid by bacillus coagulans
    CHAPTER 1 INTRODUCTION 1.1 PRELIMINERIES Due to highly development of chemical and biochemical industries, acetic acid has largely produced to fulfil the needs of world demand in production of daily used products and for pharmaceutical needs. Therefore, this study is carried out to introduce the production of acetic acid using biological pathways which includes the used of microorganisms. In this chapter will briefly explained on the knowledge about acetic acid and the...
    2,226 Words | 8 Pages
  • Centrifugation: Acetic Acid and Centrifuge Tube
    Experiment 2: Centrifugation Title Centrifugation of fresh milk and Acetic Acid Objective(s): 1. To separate coagulated milk from mixture of fresh milk and Acetic Acid by centrifugation 2. To determine the relationship of speed of centrifugation with the coagulation of milk which separate from mixture. 3. To study the process of centrifugation Introduction Centrifugation is a process which materials suspended in a liquid medium undergo separation or concentrate due to the...
    1,541 Words | 6 Pages
  • percent of acetic acid in vinegar (chem lab)
    Percent Acetic Acid in Vinegar Introduction: Acetic acid is reactive when combined with calcium carbonate. In this lab, we will use vinegar for its acetic acid and egg shells for their calcium carbonate. Marketable vinegar differs in its acetic acid concentration from 4-6%. Calcium carbonate reacts with the acetic acid in vinegar to produce carbon dioxide, water, and calcium acetate as represented by the equation: CaCO3 + 2HC2H3O2 CO2 + H2O + Ca(C2H3O2)2. The calcium carbonate reacts...
    418 Words | 3 Pages
  • Acetic Acid: Molecular Formula and Molecular Weight
    Also known as: ethanoic acid, Glacial acetic acid, Ethylic acid, Vinegar acid, Acetic acid, glacial, Methanecarboxylic acid, Acetasol, Essigsaeure Molecular Formula: C2H4O2 Molecular Weight: 60.05196 Acetic acid is a weak acid which is probably most famous for being the primary acid in vinegar. In fact, acetic acid has a wide range of uses beyond sprinkling on salads, and it is produced in large volumes all over the world. People have been working with this acid in a number of contexts...
    600 Words | 2 Pages
  • to determine the molarity of a solution and the percent by mass of acetic acid in vinegar
    Table of Contents Abstract 1 Introduction 1 Objectives 2 Theory 2 Apparatus 7 Procedure 8 Results 10 Calculations 14 Discussion 20 Conclusion 21 Recommendations 21 References 22 Appendices 22 Abstract This experiment was performed in order to determine the molarity of a solution and the percent by mass of acetic acid, CH3COOH in vinegar. Acetic acid is monoprotic and belongs to the carboxyl family of organic compounds. The titration method is used to neutralize the acids by using the...
    3,042 Words | 17 Pages
  • carboxylic acids - 1336 Words
    CHEMISTRY 125 LABORATORY Name: Balagao, Sherey Mae U. Date Performed: September 8, 2014 Lab Schedule: 1:00-4:00 MW Date Submitted: September 19, 2014 Group No.: 4 Rating: Exercise No. 8 CARBOXYLIC ACIDS AND ACID DERIVATIVES I. OBJECTIVES: • To investigate the physical and chemical properties of Carboxylic acid and its derivatives • To understand the reactions of carboxylic compounds and derivatives. II....
    1,336 Words | 6 Pages
  • Acids and Bases - 2248 Words
    ACIDS AND BASES The reason that acid-base reactions are so important is that many of the things you come into contact with on a daily basis are either acids or bases. Most fruits are acids, as are carbonated beverages, tea, and battery acid. Common household bases include baking soda, ammonia, soap, and antacids. What are acids and bases? There are not one but three common definitions used to describe acids and bases: 1. Arrhenius acids and bases 2. Brønsted-Lowry acids and bases 3. Lewis...
    2,248 Words | 7 Pages
  • Acetylsalicylic Acid - 824 Words
    Experiment 8: Acetylsalicylic Acid Post lab: Restatement of experiment: Aspirin (acetylsalicylic acid) is a derivative of salicylic acid with the same medicinal values but fewer side effects. It is used widely as a pain killer and anti-inflammatory. In this experiment, aspirin was synthesized from salicylic acid and acetic anhydride. To determine the product’s purity, the melting point of aspirin was then measured using a Thomas-Hoover Uni- Melt device. The product had a low percent yield...
    824 Words | 3 Pages
  • Formic Acid - 688 Words
    Formic acid is known to be the simplest carboxylic acid, and it is an important factor in chemical synthesis and occurs naturally. The chemical formula for Formic Acid is CH202, and is mostly found in the venom of bee and ant stings. Formic acid is clear and colorless with a pungent odor. Formic acid is used in many ways; Formic acid is used to preserve livestock. It is also sprayed on animal food and fresh hay to reduce the decay rate. It can also be used as a pesticide to protect bee...
    688 Words | 2 Pages
  • Reactions Of Acids - 1079 Words
    E XPE RIME NT 4 . 5 Reactions of acids Aim To investigate and compare some reactions of a strong acid, hydrochloric acid, and a weak acid, ethanoic acid (common name, acetic acid) Equipment Dropper bottles containing: • 0.1 M hydrochloric acid, HCl • 0.1 M ethanoic acid (acetic acid), CH3COOH • 0.1 M sodium hydroxide, NaOH • 1 M hydrochloric acid, HCl • 1 M ethanoic acid (acetic acid), CH3COOH • universal indicator solution • limewater (calcium hydroxide, Ca(OH)2) Marble chips (calcium...
    1,079 Words | 5 Pages
  • CARBOXYLIC ACID - 608 Words
     CARBOXYLIC ACID Introduction: Organic compounds containing (–C(O)–OH) as a functional group are called carboxylic acids. The –C (O)-OH group which itself is made up of a carbonyl group (>C=O) and a hydroxyl group (-OH) is called a carboxyl group (carb from carbonyl and oxyl from hydroxyl group). Carboxylic acid may be an aliphatic or an aromatic depending upon whether –C–OH is attached to an alkyl group ( or a hydrogen atom) or an aryl group. Their general formulas are; ALIPHATIC...
    608 Words | 3 Pages
  • Acid Strength - 841 Words
    Acid Strength Grade 10- Science (chemistry) 11/23/2012 Mariana Boff Acids Strength Acids are substances that contain hydrogen atoms which detach to form hydrogen ions when the acid is dissolved. Acids are divided into two main categories: the strong and weak acids. The stronger ones are very corrosive and can cause severe skin burns, here are some examples: nitric acid (HNO3), hydrochloric acid (HCl) and sulfuric acid (H2SO4). The weaker ones are less corrosive and when in touch with...
    841 Words | 3 Pages
  • acrylic acid - 9543 Words
    MANUFACTURE OF ACRYLIC ACID BY PARTIAL OXIDATION OF PROPYLENE Submitted by, P.V.R.Krishna Prasad. M.Prem Kumar. ACKNOWLEDGEMENT We hereby place our sincere thanks to Dr.R.KARTHIKEYAN, Head of the Department of Chemical Engineering , Faculty of Engineering and Technology, S.R.M University and the faculty members of Chemical Engineering Department for their full hearted co-operation and encouragement for the completion of this project. We extend our thanks to our Project guide...
    9,543 Words | 62 Pages
  • Carboxylic Acid - 1147 Words
    HONEY JANE ESTARIJA bs-biology MW 1:00 - 2:30 & 3:00 – 6:00 A carboxylic acid is an organic acid characterized by the presence of at least one carboxyl group. The general formula of a carboxylic acid is R-COOH, where R is some monovalent functional group. A carboxyl group (or carboxy) is a functional group consisting of a carbonyl (RR'C=O) and a hydroxyl (R-O-H), which has the formula -C(=O)OH, usually written as -COOH or -CO2H. Carboxylic acids are Brønsted-Lowry acids because they...
    1,147 Words | 5 Pages
  • Acid rain - 365 Words
    Introduction: Acid rain has proven to be a big problem for Connecticut. It has had a great impact on builders, wildlife, and the water sources. Acid rain has many components in it such as pollutants from plants to sulfuric acid from burning coal. Problem: Which stone is the most resistant against acid rain? Hypothesis: If we test the different stones against acid rain then red sand stone would be the best because it is heavier and cannot be easily broken. Independent variable: Type of...
    365 Words | 3 Pages
  • salicylic acid - 824 Words
    Synthesis of Salicylic Acid Experimental Data: 1. Mass of methyl salicylate used: 0.232 g 2. Theoretical yield of salicylic acid: 0.211 g 3. Volume H2SO4 added, with units (drops or mL): 3mL 4. Mass of crude salicylic acid obtained: 0.250 g 5. Volume of water used as recrystallizing solvent: 2 mL 6. Mass of purified salicylic acid: 0.134 g 7. Percent yield of purified salicylic acid from reaction: 63.5% 8. Melting point of purified product: 158-160 oC 9. Name of NMR solvent used...
    824 Words | 3 Pages
  • Acids and Bases - 4167 Words
    Advantages: Sulfamic acid is the fastest de-scaler - It dissociates into hydroxonium ions more readily in aqueous solution than the others, therefore giving a greater concentration of atoms that are able to react with the calcium in lime scale. It is safe to use because it does not produce chlorine gas [5], which can be toxic. Sulfamic acid also has a low volatility. Disadvantages: Sulfamic Acid can be an irritant to eyes or skin and is the most expensive of the de-scalers. Q2) How these...
    4,167 Words | 13 Pages
  • Carboxylic Acids - 401 Words
    1. What is the functional group of a carboxylic acid? a. Carboxyl group –COOH, --CO2H 2. What is the common name for an ethanoic acid? a. Acetic acid CH3COOH 3. Reduction of carboxylic acids a. Carboxylic acids  Aldehydes  Primary alcohols 4. Why are ions much more water soluble than neutral molecules? a. Because they have a charge 5. Putting an insoluble carboxylic acid in a basic (alkaline) solution creates an ion by: a. Taking away an H+ b. It becomes soluble 6. Changes...
    401 Words | 2 Pages
  • determination of carbonic acid - 1156 Words
    Procedure: Melting point of RCO2H Before observing the melting point of the unknown sample, the melting apparatus had to be standardized with a standard substance having the melting point of 151°C-153°C. After placing a small sample of the standard in a capillary tube and inserting the tube into the sample tube holder, the plateau on the device was set to 15°C below the expected melting point. After its temperature reached the plateau, the temperature increment was set at 1°C per minute, and...
    1,156 Words | 3 Pages
  • Different Acids and Their Reactions
    This reaction is important in the erosion of carbonate rocks, forming caverns, and leads to hard water in many regions. An unusual form of calcium carbonate is ikaite with crystal water, CaCO3•6H2O. Ikaite is stable only below 6 °C. [3]The big problem when descaling with citric or acetic acids are the released flavor additives which cause an obtrusive smell during descaling. The plastic parts of your fully automated coffee maker tend to taken on these smells and influence the smell and taste...
    606 Words | 2 Pages
  • Acid Base Extraction - 1625 Words
    Acid Base Extraction The purpose of this laboratory assignment was two-fold, first, we were to demonstrate the extraction of acids and bases, finally, determining what unknowns were present. Second, we were to extract caffeine from tea. These two assignment will be documented in two separate entities. Introduction: Acid/base extraction involves carrying out simple acid/base reactions in order to separate strong organic acids, weak organic acids neutral organic compounds and basic organic...
    1,625 Words | 8 Pages
  • Preparation Of Acetylsalicylic Acid 1
    Preparation of Acetylsalicylic Acid Abstract Acetylsalicylic acid was prepared using salicylic acid and acetic anhydride. As a result, a white, powdery substance was formed (0.1931g, percent yield 91.30%) and was defined by melting point (124.5 – 134.5°C) and observation of color change with ferric chloride. Introduction Acetylsalicylic acid (aspirin) is one of the most popular analgesic drugs on the market today. It also acts as an antipyretic and anti-inflammatory drug. Salicylic acid...
    340 Words | 3 Pages
  • Acid N Base Titration
    Name ______________________________________ Before you begin, save this Lab Report Template on your computer as LastNameAPChem7 Title: Acid Base Titration Purpose: To practice titration techniques To perform acid-base titrations To determine the molarity and percent composition of acetic acid in commercial vinegar Materials: |0.1 M sodium hydroxide |24-well reaction plate |toothpicks | |phenolphthalein test paper...
    572 Words | 4 Pages
  • Acetylsalicylic Acid (Organic Synthesis)
     EXERCISE 11 Synthesis of Aspirin (Acetylsalicylic Acid from Salicylic Acid) RAQUID, Rency J Group 5 18L I. Introduction Due to the demand of certain reagents in the laboratory in order to perform and conduct further experiments or produce essential compounds, chemists continuously develop organic synthesis. This process aims to prepare and synthesize desired organic compounds from commercially or readily available ones by providing the simplest route in synthesizing the...
    2,676 Words | 14 Pages
  • Acetylsalicylic Acid Synthesis - 577 Words
    October 9, 2013 Partner(s): Acetylsalicylic Acid Synthesis Theory. This experiment was carried out to see how the hydroxyl group on the benzene ring in salicylic acid reacts with acetic anhydride to form an ester, and to make aspirin. Synthesis of Acetylsalicylic Acid occurs by protonation of carbonyl (C=O) group, and a nucleophilic attack of OH on the acetic anhydride. The ferric chloride test and melting point were used to test the purity of the results. A hypothesized recovery rater of...
    577 Words | 4 Pages
  • Acid and Drops Litmus Paper
     EXPERIMENT NO 1. MATERIALS Sofdriks (coke) Dropper Vinegar Milk (yakult) Litmus paper Beer Ampalaya fruit Distilled water Calamasi PROCEDURE: 1. Prepare the materials that needed in experiment. 2. Using dropper, get a little amount of coke, vinegar, milk, beer, and distilled water then drop to red and blue litmus paper. Record the result. 3. Squeeze...
    263 Words | 2 Pages
  • Acids In Solution Have A PH
    Acids in solution have a pH below 7.0, a sour taste, releases hydroxyl ions in water, and turn litmus paper red. Acids are divided into two main classes: Weak acids are mildly corrosive and normally do not affect skin, examples are acetic acid (vinegar), citric acid (citrus fruit juice acid), and tartaric acid (used in making mayonnaise). Also called natural or organic acids. A sour substance. Any of various typically water-soluble and sour compounds that in solution are capable of reacting...
    203 Words | 1 Page
  • Extraction Extraction with acid and alkali
     EXPERIMENT 13: Extraction: Extraction with acid and alkali Objective 1. To recover the benzoic acid and p-dichlorobenzene from its mixture from its mixture by using acid-alkali extraction. 2. To determine the percentage recovery and melting point of the recovered benzoic acid and p-dichlorobenzene. Introduction Acid-base extraction is a process which purifying the acids and bases from mixtures based on their chemical properties. Acid-base extraction is performed to isolate the compounds...
    1,686 Words | 6 Pages
  • Acid Buffer Solution - 1070 Words
    BUFFERS By: Luis P. Bazan, RPh., Ph.D. A buffer solution is a solution of: 1. A weak acid or a weak base and 2. The salt of the weak acid or weak base Both must be present! A buffer solution has the ability to resist changes in pH upon the addition of small amounts of either acid or base. Consider an equal molar mixture of CH3COOH and CH3COONa CH3COOH (aq) H+ (aq) + CH3COO- (aq) Adding more acid creates a shift left IF enough acetate ions are present 16.3 Which of...
    1,070 Words | 7 Pages
  • Neutralizing Acids and Bases - 3601 Words
    The sought to determine the effects of mixing various levels of acids and bases to see which combination would have the most explosive reaction, and measure the resulting pH levels. I did this by testing an assortment of different pH levels of acids and bases, mixing them together and measuring the results. Most of the experiments resulted in a pH neutral solution, except for the Sulfuric Acid and the Sodium Hydroxide. By far, the Sulfuric Acid was the most explosive, followed by the Citric and...
    3,601 Words | 8 Pages
  • Esterification of P-aminobenzoic acid
    Figure 1: Formation of benzocaine from p-aminobenzoic acid Experimental P-aminobenzoic acid (1.211g) and absolute ethanol (15mls) were combined with three boiling chips in a 50ml round bottom flask. The round bottom flask was placed on a heating plate and was refluxed starting at 109 ̊C. The solution began boiling at 111 ̊C. It was allowed to reflux for approximately 30 minutes and the solid was dissolved. The round bottom flask was then placed in an ice bath and allowed...
    485 Words | 2 Pages
  • Lab of Acid Base - 4371 Words
    Unknown Indicators, Acids, and Buffers If we knew what it was we were doing, it would not be called research, would it? – Albert Einstein In the following three experiments, you will design your own experiments. We will explain the general problem — the analysis of an unknown — and give you a brief introduction to any necessary theory. Working in a team of students, you will design and carry out every aspect of the experiment. You and your team will have to answer many seemingly mundane...
    4,371 Words | 13 Pages
  • Introduction to Acids Base chemistry
    Introduction to Acids Base chemistry Purpose How to determine the constant equilibrium of an acid, Ka? How to evaluate the concentration (M) of an acid? In “part A” experiment, we would test the PH of different concentration of acetic acid (a weak acid which partially dissociated in water) with a PH probe. After we got the PH, we could find out the concentration of H+ by applying the relationship pH = -log [H+]. Having the determined value of [H+] of a weak acid with a known molar...
    1,948 Words | 8 Pages
  • Carboxylic Acid and Derivatives - 975 Words
    Chinese General Hospital Colleges First Semester, AY 2013 – 2014 Organic Chemistry (Laboratory) Experiment no. 10 Date performed: September 5, 2013 Group 3 Date submitted: September 19, 2013 Names: De Guzman, Joanna Clarisse Del Mundo, Marilyn Delos Reyes, Pamela L. Dela Cruz, Marrie Cyril M. Duran, Zenith Anne P. “CLASSIFICATION TESTS FOR CARBOXYLIC ACID AND DERIVATIVES” I. Theoretical background Carboxylic acid derivatives are organic compounds containing...
    975 Words | 6 Pages
  • Acid-Base Calculations - 1300 Words
     Acid-Base Calculations The Ion-Product Constant for Water, Kw Water undergoes ionization to a small extent: H20(l)  H+(aq) + OH–(aq) The equilibrium constant for the reaction is the ion-product constant for water Kw: (1) This is a key equation in acid-base chemistry. Note that the product of [H+] and [OH–] is a constant at a given temperature (Eq(1) value is for 25oC). Thus as the hydrogen ion concentration of a solution increases, the hydroxide ion concentration...
    1,300 Words | 9 Pages
  • Ethanoic Acid: Advantages - 870 Words
    Ethanoic Acid Advantages: Ethanoic acid is non-toxic and is a weak acid, meaning it will not do any damage to most surfaces as it does not corrode or bind to other metals, therefore can be easily removed through washing or rinsing it. Disadvantages: Ethanoic Acid is the slowest de-scaler of the three acids, and is therefore the least effective. It also may cause an unpleasant smell, and can have a negative effect on the taste of coffee meaning one would need to spend longer time rinsing and...
    870 Words | 3 Pages
  • Microscale Synthesis of Acetylsalicylic Acid
    Synthesis of Aspirin Ling Tecson Gamido, Mitchiko Mariel M. Mizukami Abstract Acetylsalicylic acid, or also known as aspirin is known to be a drug that relives people of pain and is commonly used even today. It is synthesized from salicylic acid and ethanoic anhydride, both of small quantities. Phosphoric acid was used as a catalyst in the synthesis to speed up the process. Esterification is involved and the final product is aspirin with the presence of acetic acid as the byproduct. In...
    1,211 Words | 5 Pages
  • Hydrolysis of Esters-Acid-Mechanism
    [pic] |THE MECHANISM FOR THE ACID CATALYSED HYDROLYSIS OF ESTERS | | | |This page looks in detail at the mechanism for the hydrolysis of esters in the presence of a dilute acid | |(such as hydrochloric acid or sulphuric acid) acting as the catalyst. It uses ethyl ethanoate as a typical| |ester....
    1,063 Words | 5 Pages
  • Acids Bases and Salts - 565 Words
    Worksheet - Acids, Bases and Salts 1. I am pure water. When heated my pH (increases, decreases), because more of my water molecules dissociate. 2. I am a 0.020 M solution of weak acid, HA. If I only dissociate to the extent of 1.50%, what is the value of my Ka? 3. I am a 0.20 M solution of hydrocyanic acid, HCN, with a Ka of 4.93 x 10¯ 10 . What is my pH? 4. I am a buffer made from 0.10 M acetic acid and 0.15 M sodium acetate. If the Ka for acetic acid is 1.77 x 10¯ 5 , what is my pH? 5. I...
    565 Words | 2 Pages
  • Chemistry Acid and Base - 1021 Words
    Aqueous Acid/Base Chemistry Resources: Harris ‘Quantitative Chemical Analysis’ Review: Pure water has a pH = 7 Autodissociation: H2O (( H3O+ + OH- K = [H3O+][OH-]/[H2O] -log[H3O+] = 7 [H3O+] = 10-7 M = [OH-] [H2O] = 55.56 M K = 1.8 x 10-16 ; pKa = 15.74 pKa is the acid dissociation constant; low pKa (strong acid, high pKa (weak acid we can also write Kw = [H3O+][OH-] Kw = 10-14 In water, pH + pOH = 14 pH scale...
    1,021 Words | 5 Pages
  • Estimation of Ascorbic Acid - 691 Words
    Title: Estimation of Ascorbic acid Aim: To determine the ascorbic acid content of canned apple and orange juice To determine the volume of canned juice necessary to provide 75mg of Vitamin C Introduction: For the estimation of ascorbic acid, the method used involved the titration of the ascorbic acid, in the presence of a redox indicator 2,6-dichlorophenol-indophenol (DCPIP) which acts as both an oxidant so as to oxidise the ascorbic acid to dehydroascorbic acid, and it acts as an...
    691 Words | 3 Pages
  • Feed Acidifiers Market (Propionic Acid, Fumaric Acid, Lactic Acid, Formic Acid & Others) to 2018
    The feed acidifiers market is flourishing due to the increasing use of feed acidifiers in treating animal diseases. The leading companies of the feed acidifiers market are continuously adopting new technologies and are using feed acidifiers for supplementing the diets of animals. The market value of propionic acid as a feed acidifier was the highest in 2012, and is projected to grow with the increasing demand for feed acidifiers in the livestock industry. The benefits of feed acidifiers are...
    284 Words | 1 Page
  • PharmChem weak acids - 281 Words
     Name: Citric acid Chemical Name: 2-hydroxypropane-1,2,3-tricarboxylic acid Chemical Formula: C6H8O7 Chemical Structure: pH: 4.18, 3.90, 3.57 Classification: Weak acid Uses: It is a natural preservative/conservative and is also used to add an acidic or sour taste to foods and drinks. It is also used mainly as an acidifier, as a flavoring, and as a chelating agent. Name: Vinegar acid Chemical Name: Acetic acid or ethanoic acid Chemical Formula: C2H4O2 Chemical...
    281 Words | 2 Pages
  • The Determination of Acid Constant Ka
    The Determination of Acid Constant Ka Abstract When an acid or base dissolves in water, a certain percentage of the acid or base particles will break up, or dissociate, into oppositely charged ions. The Arrhenius theory defines an acid as a compound that can dissociate in water to yield hydrogen ions, H+, and a base as a compound that can dissociate in water to yield hydroxide ions, OH. The base sodium hydroxide, NaOH, dissociates in water to yield the required hydroxide ions, OH-, and...
    2,703 Words | 8 Pages
  • Synthesis of Acetylsalicylic Acid - 2828 Words
    Acetylsalicylic Acid (Aspirin) Synthesis Telow, AJV Sumicad, CJ, Tavanlar, EMMT, Chem 40.1, Institute of Chemistry, University of the Philippines Los Baños I. Introduction Organic synthesis is the process where a desired organic compound is constructed or prepared from commercially available materials. The objective of organic synthesis is to design the simplest synthetic routes to a molecule. Aspirin, also known as acetylsalicylic acid is as salicylate drug often used as...
    2,828 Words | 13 Pages
  • Solution: Acid and Base - 994 Words
    SOLUTIONS Title I. Objective: To study some phenomena related solution. II. Apparatus: Test tubes, Bunsen burner, mortar and pestle, conductivity Apparatus, test tube holder, calibrated test tube. III. Materials: Crystals of blue vitriol, benzoic acid, table salt, denatured alcohol, kerosene, 10ml of very diluted sulfuric acid, 2g brown sugar, 10ml of each of...
    994 Words | 5 Pages
  • Synthesis of Salicylic Acid - 859 Words
    Experiment 4 Synthesis of Salicylic Acid Introduction Throughout history, botanical extracts have been used as medicines. Approximately 30% of all medicines have a plant origin. This number increases to 60% if you consider medicines that at one time were derived from plants, but have been synthesized in the laboratory. Salicylic acid is a white crystalline compound that can be isolated from the bark of birch trees. Since it is a valuable substance that can be isolated from nature, it is...
    859 Words | 3 Pages
  • Carboxylic Acid and Derivatives - 1240 Words
    REPORT EXPERIMENT 9 CARBOXYLIC ACID AND DERIVATIVES Date: January 19, 2004 Objectives: 1. To understand the reactions of carboxylic compounds and derivatives. 2. To know the methods for preparing carboxylic acid derivatives. 3. To know the methods for testing the carboxylic acid derivatives. Experimental Procedures: 9.1 Solubility 1. Prepare 3 test tubes with 3 ml of water in each. 2. Place 3 drops of acetic acid, benzoic acid, and oxalic acid in separate test tubes. 3. Shake and...
    1,240 Words | 5 Pages
  • Bromination of trans-cinnamic acid
    Abstract The bromination of trans-cinnamic acid was completed to determine dibromide’s stereochemical structure and its mechanism. After the addition of bromine to trans-cinnamic acid, the product was identified by its melting point and infrared spectrum resulting in erythro-2,3-Dibromo-3-phenylpropanoic acid after comparing similar properties. Introduction In this lab, the bromination of trans-cinnamic acid was completed to determine dibromide’s stereochemical structure, and from there...
    688 Words | 3 Pages
  • Acid Base Titrations - 1386 Words
    [TYPE THE COMPANY NAME] EXPERIMENT 9 Acid-Base Titrations The pH titration curve, found with a known titrant concentrations (here) in a buret, is a procedure for determining the equivalence point of a solution. The shape of the curve allows for correlations based on volume, molarity, pH, etc. to be inferred (McMurry & Fay,p 602). This experiment used both strong-strong and weak acid-strong base titration. The titration curve is distinct for each, as shown in form HCl1 and AA1....
    1,386 Words | 7 Pages
  • Acids and Bases Exercises - 2569 Words
    18.1.4 – 18.1.6 CALCULATIONS INVOLVING ACIDS AND BASES Review of Important formulas pH = ‐ log10[H+] [H+] = 10‐pH pKa = ‐ log10 Ka Ka = 10‐pKa pOH = ‐ log10[OH‐] [OH‐] = 10‐pOH pKb = ‐ log10 Kb Kb = 10‐pKb The ionic product of water = Kw = [H+] x [OH‐] = 1.0 x 10‐14 mol2 dm‐6 at 298 K ...
    2,569 Words | 32 Pages
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