Acid Essays & Research Papers

Best Acid Essays

  • Acid Report - 681 Words
    Abstract Objectives The objective of the experiment is to study the effect of citric and buffered lactic acids on the flavour of hard-boiled sweets and the effect of acids on various flavours in high temperature applications. Introduction Materials and Methods An amount of water, sugar and glucose syrup of 30g, 100g and 70g were weighed respectively into a stainless steel pot. The mixture was then heated and removed immediately from the induction cooker after reaching the desired temperature...
    681 Words | 4 Pages
  • Acid and Bases - 511 Words
    Chapter 13 Acids and Bases (Dr Chong Fai Kait) 1) A 7.0  103 M aqueous solution of Ca(OH) 2 at 25.0 °C has a pH of __________. A) 12.15 B) 1.85 C) 1.4  102 D) 7.1  1013 E) 11.85 Answer: A 2) The acid-dissociation constant at 25.0 °C for hypochlorous acid (HClO) is 3.0 108 . At equilibrium, the molarity of H 3 O in a 0.010 M solution of HClO is __________. A) 1.7 105 B) 0.010 C) 5.8 1010 D) 4.76 E) 2.00 3) Using the data in the table, which of the conjugate acids below is the...
    511 Words | 2 Pages
  • Acid and Water - 376 Words
    Plop Plop Fizz Fizz Expt # 1 I. INTRODUCTION: In this lab I will try to see in what an Alka-Seltzer tablet will dissolve fastest in. I need to figure out if the Alka-Seltzer tablet will dissolve slowest or fastest in tap water, warm water, cold water, salt water, or acidic water. In this lab I wall develop and test a hypothesis, analyze data and draw a conclusion. In this experiment I will find out that in a type of water the Alka-Seltzer will dissolve faster and slower. Alka-Seltzer...
    376 Words | 2 Pages
  • Acid and Bases - 3522 Words
    LAB 6. ACIDS AND BASES: PH AND BUFFERS PURPOSE: To determine the pH of common acids and bases using a pH meter, pH paper, and red cabbage indicator. To test the effect of adding an acid or base to a buffer solution. SAFETY CONCERNS: Always wear safety goggles. Wash with soap and water if skin contacts acids or bases. ACIDS: An Acid is a substance that when dissolved in water will produce hydrogen ions, H+, in the solution. An acid that does not contain carbon is called an...
    3,522 Words | 28 Pages
  • All Acid Essays

  • Acid Rain - 356 Words
    What is Acid Rain? First identified in 1872 in Sweden and studied in the U.S. beginning in the 1950s, acid rain is precipitation in the form of rain, snow, hail, dew, or fog that transports sulfur and nitrogen compounds from the high atmosphere to the ground. Sulfur dioxide (SO2) and nitrogen oxides (NO, NO2) are bi-products from burning fuels in electric utilities and from other industrial and natural sources. These chemicals react with water, oxygen, carbon dioxide, and sunlight in the...
    356 Words | 1 Page
  • Amino Acids - 570 Words
    Lesson Learning Outcomes Upon completion of this lecture, students should be able to: understand the structures and properties of amino acids know the groups of amino acid What are amino acids? Amino acids are molecules that when combined with each other  proteins. Amino acids contain a central tetrahedral carbon atom (α-carbon) amine group, carboxyl group, R-side chain The R-side chain determines the different amino acids There are 20 common amino acids Amino acids can join via...
    570 Words | 5 Pages
  • Acid and Base - 298 Words
    Cristina Joy A. Boñula 12-4-12 IV-Einstein Ad. Chem. Ass#1 1. What is an acid? An acid is a substance which reacts with a base. The Arrhenius definition states that acids are substances which increase the concentration of hydronium ions (H3O+) in solution. The Brønsted-Lowry definition is an expansion: an acid is a substance which can act as a proton donor. 2. What is a base? Base-Metal oxide or other compound that reacts with an acid to neutralize it and produces...
    298 Words | 2 Pages
  • Acid and Base - 1956 Words
    Experiment 4: ACIDS AND BASES: PH Measurements and Macroscale Titration CHM023L – A12 Group no. 6 Members: | Contributions: | | Conclusion | | Recommendation | | Tables and figures with analysis | | Principles, Equation | | Abstract, tables | Date Performed: February 28, 2012 - Tuesday Date Submitted: March 6, 2012 - Tuesday Submitted to: ------------------------------------------------- ABSTRACT: This experiment introduces us the pH measurement and...
    1,956 Words | 7 Pages
  • Acid Rain - 751 Words
    QUESTIONS a) When it is considered that rain is acid? = The pH scale measures how acidic an object is, when pH is lower than 7 rain is considered acid. b) Which are the compounds that in contact with water origin acid rain? = Compounds like sulfur sulphuric and nitric acids. c) Which are the principal causes of these compounds? = The extra acidity in rain comes from the reaction of primary air pollutants, primarily sulphur oxides and nitrogen oxides, with water in the air to form...
    751 Words | 3 Pages
  • Saftee Acid - 582 Words
    Schulze 1 English 101 December 13, 2013 Saftee Acid In order to complete a shoulder mount for a taxidermy animal the hide must go through several processes. First of which involves removing all of the flesh from the hide, once this is complete the hide goes into a solution known as the pickling processes. Once to this stage there are several products that may be used in order to complete a pickled fur. There are three main components to creating a pickling solution; these...
    582 Words | 2 Pages
  • Acid and base - 757 Words
     Acidic and Basic Dennis Pfeiffer Ms. David Westport High school Biology Honors 12/19/13 Procedures 1. Prepare a Red Cabbage Indicator Solution A. Slice a head of cabbage in 1in. strips or peel leaves and tear into pieces. B. Place leaves in cooking pot and cover with water. C. Cook on medium heat ( low boil ) ½ hour D. Allowing cooked cabbage to cool. Pour off liquid into a bowl. Pour through a strainer to catch cabbage pieces. E. Solution is deep blue-...
    757 Words | 3 Pages
  • Acids and Alkalis - 831 Words
    Acids, Bases, Alkalis, Salts 1. Acids have a pH of less than 7. 2. Bases have a pH of more than 7. 3. When bases are dissolved in water, they are known as alkalis. 4. Salts are made when an acid reacts with a base, carbonate or metal. The name of the salt formed depends on the metal in the base and the acid used. For example, salts made using hydrochloric acid are called chlorides. Acids Substances with a pH of less than 7 are acids. The more strongly acidic the solution, the lower...
    831 Words | 6 Pages
  • Hydrobromic Acid - 464 Words
    Hydrobromic Acid Education and Honors • Melting point: -11°C • Boiling point: 122°C • Molar mass: 80.91194 g/mol • Hydrobromic acid has commonly been prepared industrially by reacting bromine with either sulfur or phosphorus and water. However, it can also be produced electrolytically. It can also be prepared by treating bromides with non-oxidising acids like phosphoric or acetic acids. Experience Hydrobromic acid is mainly used for the production of inorganic bromides, especially the...
    464 Words | 2 Pages
  • Acids and Bases - 4351 Words
    BRONSTED-LOWRY ACIDS AND BASES 1. The Bronsted-Lowry definition There are many definitions of acids and bases in existence, but the most useful one is the Bronsted-Lowry definition: An acid is a substance which can behave as a proton (re presented as a hydrogen ion, H+) donor. Any substance which contains hydrogen bonded to a more electronegative element can thus behave as an acid: HCl == H+ + Cl- H2SO4 == H+ + HSO4- A base is a substance which can behave as a proton acceptor....
    4,351 Words | 20 Pages
  • Acids and Bases - 594 Words
    Group 9 September 26, 2012 Members: Cabatic, Sophia Mae E. October 1, 2012 Peria, Ellen Faith L. Tacula, Jassy Camille D.S. Activity 11 Acids and Bases I. Objectives * To identify some acids and some bases which are used in common household products. * To construct an operational definition of an acid and a base, using the characteristic properties of those substances. II. Procedure A. For acids *...
    594 Words | 3 Pages
  • Ka of acid - 257 Words
    Investigation of pH titration curves (Topic 8) Criteria Assessed: DCP, CE Time allowed: 1.5h Name: ________________________ Internal Assessment Criteria Aspect 1 Aspect 2 Aspect 3 Total DCP CE Aim: The aim of this practical is to plot and investigate the pH titration curves for the titration of a strong acid with a strong base and of a weak acid with a strong base, and find Ka of the weak acid. Procedure: Part I 1. Pour 30 ml of the HCl solution of unknown concentration in a 100 ml...
    257 Words | 2 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
  • Acid rain - 1563 Words
    Cause and Effect on Acid Rain Introduction Beautifully crafted statues are now worn out or severely damaged, aquatic wildlife population are dying off, forests have lost the leaves that protect their trees and produce food, and the rates of lung diseases in humans are rising around the world. The cause of all of these problems can be linked back to acid rain. Most people don’t understand the concept or science behind acid rain. The common belief is that it’s a natural process, but it’s...
    1,563 Words | 5 Pages
  • Acid and Shoe - 973 Words
    CHAPTER 1 Introduction Background of the Study Like many other hygiene convenience, shoe polish or can also be called boot polish is usually a wax , cream or paste used by people to shine, water proof and restore the appearance of leather shoes. This extends the footwear’s life. This is made up of many kinds of chemicals and because of this; it can cause irritations, allergies to us. In our generation, shoe polish is used every day and companies produce a lot of it to meet the demands...
    973 Words | 3 Pages
  • Acids and Bases - 4346 Words
    Suggested time allotment: 5 to 6 hours MODULE 2 ACIDS AND BASES In Module 1, you identified common properties of solutions using different methods. You learned how to report the amount of the components in a given volume of solution. You also found out that not all solutions are liquid. Some of them are solids and others are gases. Towards the end of the module, you investigated the factors that affect how fast a solid dissolves in water. Most of the solutions you studied in Module 1...
    4,346 Words | 14 Pages
  • Acid Rain - 447 Words
    Acid Rain and the Effects of our Monuments and Churches The two controlled experiments that I chose to do, do not involve trees or plants, which I think a lot of people will be doing. I wanted to explore the devastation that acid rain does to our historic monuments and beautiful churches. My first controlled experiment is based on the Statue of Liberty. It is made of copper so I am using pennies in my experiment. (nps.gov. n.d.) My observation is that acid rain corrodes...
    447 Words | 2 Pages
  • Amino Acids - 2249 Words
    Separation of Amino Acids by Paper Chromatography Chromatography is a common technique for separating chemical substances. The prefix “chroma,” which suggests “color,” comes from the fact that some of the earliest applications of chromatography were to separate components of the green pigment, chlorophyll. You may have already used this method to separate the colored components in ink. In this experiment you will use chromatography to separate and identify amino acids, the building blocks of...
    2,249 Words | 7 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
  • Butenedioic Acid - 590 Words
    |Experiment 1 | |Investigation of Some of the Properties of a Pair of Cis(Trans Isomers | Introduction Maleic acid and fumaric acid are geometrical isomers of butenedioic acid. Each of these isomers has its own distinctive properties such as melting point, solubility, density and stability. [pic] cis(isomer trans(isomer In this experiment some maleic acid is...
    590 Words | 3 Pages
  • Anti Acid - 592 Words
    Chemistry Research Paper What is an anti acid? According to Cindy Quarters (2010), “Antacids are medicines that are taken orally to help relieve sour stomach, heartburn, or acid indigestion”. This medicine is available without prescription but it is needed to take the correct dose. The different types of anti acids include calcium carbonate, sodium bicarbonate, magnesium hydroxide, aluminum hydroxide, and dihydroxyaluminum sodium carbonate. The cost of the anti acid will depend on how...
    592 Words | 2 Pages
  • Acids and Alkalis - 328 Words
    Acids and Alkalis Things you must know about this topic! 1.Acids Definition : Acids are substances that produces hydrogen ions as the only positive ions in water. Properties ▪Acid + Metal = Salt + Hydrogen gas ➔Eg. Mg(s) + 2HCl(aq) = MgCl (aq) + H (g) ➔Hydrogen Test ◦Dissolve Magnesium Ribbon in dilute Hydrochloric Acid. Lit a burning splint and place it at the top of the tube. Test to see if there is a pop sound. The sound indicates the presence of the gas Hydrogen. ▪Acid + Carbonate =...
    328 Words | 1 Page
  • Acid Rain - 876 Words
    Running Head: "ACID RAIN" Chemical Reactions Involved in the Formation of Acid Rain Melanie Fonseca Biset Mrs. Vitella Bodnar SNC 2D7 March 5th, 2014 ACID RAIN When any type of precipitation (hail, dust, fog, snow etc.) , has a pH of approximately 5.6 due to the emissions of sulfur dioxide and nitrogen oxides, the term acid rain is used (Ferguson, Jeffries, 2013). Known for its stinging odour, sulfur dioxide is a colourless gas that derives from the burning of coal and oil in...
    876 Words | 3 Pages
  • Acid Rain - 552 Words
    Acid rain is considered precipitation in the form of rain, snow, or fog. It is not regular precipitation. It is precipitation that is polluted by acid. Emissions of sulfur dioxide and nitrogen oxide into the atmosphere cause this precipitation to become acidic. These emissions are released into the atmosphere by human activity, such as automobiles, industries, and electrical power plants that burn fossil fuels like coal and oil. When these gases are released, they mix with water vapor in the...
    552 Words | 2 Pages
  • Alkaline and Acid - 313 Words
    | An acid is a chemical substance any of various typically water soluble and sour compounds that are capable of reacting with a base to for a salt, that redden litmus paper, that evolve hydrogen on reaction with various metals, that in water solution yield hydrogen ions, and that have hydrogen containing molecules or ions able to give up a proton to a base or that are substances able to accept and unshared pair of electrons from a base. An alkaline is a chemical compound that neutralizes or...
    313 Words | 1 Page
  • Sulfuric Acid - 467 Words
     Sulfuric Acid (H2SO4) Sulfuric acid is found in common household products such as lead-acid car batteries, detergent and fertilizers. Sulfuric acid is used in car batteries as an electrolyte in the battery plate to allow electrons to pass through. Sulfuric acid is used to make phosphoric acid, which is found in phosphate fertilizers to improve plant growth, and phosphoric acid is used to make trisodium phosphate, which is found in detergent (Want To Know It, November 8, 2011). Physical and...
    467 Words | 2 Pages
  • acid base - 545 Words
    Acid Property #1: The word acid comes from the Latin word acere, which means "sour." All acids taste sour. Well known from ancient times were vinegar, sour milk and lemon juice. Aspirin (scientific name: acetylsalicylic acid) tastes sour if you don't swallow it fast enough. Other languages derive their word for acid from the meaning of sour. So, in France, we have acide. In Germany, we have säure from saure and in Russia, kislota from kisly. Base Property #1: The word "base" has a more...
    545 Words | 2 Pages
  • Acids and Bases - 2330 Words
    Standardization of NaOH and Determination of Unknown Acid KEYWORDS: quantitative analysis, titration, buret, endpoint, standardization, half-equivalence point, calorimetric titration, potentiometric titration ABSTRACT: The concentration of sodium hydroxide was determined by colorimetric titration, and the identity of an unknown acid was determined by potentiometric titration. In the first titration, a strong acid standard, potassium hydrogen phthalate (KHP), was used, to determine the...
    2,330 Words | 7 Pages
  • citric acid - 426 Words
    Citric Acid is a food grade item that is commonly used in food to balance the ph of things like fruit juices to retain color and reduce bacterial growth ability. It is a type of vitamin c that comes from citrus products. And it works amazingly on lime scale. It’s really a science lesson in ph. neutralizing – acid neutralizes alkaline. Citric acid – (or any acid including those noxious chemicals in toilet cleaners like “the works”) neutralizes – balances the ph to neutral of whatever it is...
    426 Words | 2 Pages
  • Acids and Bases - 519 Words
    BACKGROUND INFORMATION HOW DOES ONE DIFFERENTIATE THEM? There are several ways to classify substances. One way is based on their pH. Substances may be * Acid 2. Base 3. Neutral INDICATORS This is a substance which is one color in and acid and another color in a base. Indicators can ten be used to test for the presence of acids or bases in a substance. Some are available in paper form (litmus) and others in liquid form (methyl...
    519 Words | 3 Pages
  • Acid Rain - 3195 Words
    Is there really such a thing as rain with acid in it? Yes, acid rain is a very real phenomenon worldwide, and it's been documented since the 1800s, as the Industrial Revolution caused the burning of fossil fuels like coal, gas and oil. When these fuels or any other organic material like wood or paper are burned, they release compounds like sulfur dioxide (SO2) and nitrous oxides (NOx) into the air. Are SO2 and NOx the causes of acid rain? Indirectly, yes. When SO2 and NOx enter the...
    3,195 Words | 8 Pages
  • Citric Acid - 420 Words
    RELATED LITERATure With so many commercially branded bleach and detergents, organic ingredients are being secluded and the common chemicals are used because of cheaper price. This study aims to determine the orange as an effective stain remover. The orange (specifically, the sweet orange) is the fruit of the citrus species Citrus× ​sinensis in the family Rutaceae. Orange is widely grown in tropical countries like Philippines for their sweet fruit, which cann be eaten fresh or processed...
    420 Words | 3 Pages
  • acid rain - 1907 Words
    Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions (low pH). It can have harmful effects on plants, aquatic animals and infrastructure. Acid rain is caused by emissions of sulfur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids. Governments have made efforts since the 1970s to reduce the release of sulfur dioxide into the atmosphere with positive results....
    1,907 Words | 6 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
  • 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
  • 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
  • Acids, Bases, and Neutrals
    Experiment Acids, Bases, and Neutrals Problem Are common house-hold products pH balanced and neutral? Information Gathered pH measures how acidic or alkaline a solution is. The pH scale ranges from 0-14. Solutions that range from 0-6 are considered to be acidic. Solutions that are on the acidic end of the scale are low in pH, high in hydrogen ion, and low in hydroxyl ions. An acid has a sour taste, hence, will react to metal and will be corrosive; therefore, they are considered as an...
    369 Words | 2 Pages
  • Acids, Bases, and Salts
    Experiment #7: Acids, Bases and Salts Mabag, Viannery D., Mangune, Paolo D. Chem 14.1, MAB1, Ms. Angelyn del Rosario March 8, 2010 I. Abstract The experiment allowed students to explore different electrolytes and classify them into acids, bases and salts by using different indicators or by measuring the pH levels of each. The experiment also helped students classify different substances through their conductivity properties. The preparation of a 1 M stock solution from NaOH pellets...
    2,439 Words | 10 Pages
  • Acid Rain Analysis 5
    ABSTRACT This report involves a well description on acid rain as well as a focus on acid rain in eastern Canada. This report contains a very helpful basic background on acid rain as well as a questionnaire. It involves an annual report on the Federal-Provincial Agreements, sulphur dioxide emissions in the seven most eastern provinces, trends in acid deposition in the Atlantic provinces from 1980-1994, as well as acid precipitation in Kejimkujik, Nova Scotia. It also includes data tables,...
    3,217 Words | 12 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
  • Acid Rain - Summary - 377 Words
    Acid Rain Acid rain is one of the most dangerous and widespread forms of pollution. Sometimes called "the unseen plague," acid rain can go undetected in an area for years. Technically, acid rain is rain that has a larger amount of acid in it than what is normal. The acidity of rain in parts of Europe and North America has dramatically increased over the past few decades. It is now common in many places for rain to be ten to seventy times more acidic than unpolluted rain. Many living and...
    377 Words | 1 Page
  • Reaction of Butanols with Hydrobromic Acid
    Discussion: For this experiment our primary goal was to observe and note the reaction of butanols with hydrobromic acid. Before the lab began we discussed and proposed mechanisms. (see “Mechanisms”) To begin this experiment we calculated how much of each material we were going to be using, and the numbers we chose to use differed from our reference text slightly. We used 6.5 mL of our assigned butanol and only 4 mL of sulfuric acid. Going back to our reaction mechanisms, we were looking at SN1...
    310 Words | 1 Page
  • Acid Rain Lab Report
    Abby Kong Acid rain on plant -Background information Unpolluted rain is normally slightly acidic, with a pH of 5.6. Carbon dioxide (CO2) from the atmosphere dissolves to form carbonic acid. Acid rain is rain that has been made acidic by certain pollutants in the air. Acid rain is a type of acid deposition, which can appear in many forms. Wet deposition is rain, sleet, snow, or fog that has become more acidic than normal. Dry deposition is another form of acid deposition,...
    447 Words | 2 Pages
  • Acid-Base Titration Lab
    Acid-Base Titration Objectives: 1. To titrate a hydrochloric acid solution of unknown concentration with standardized 0.10M sodium hydroxide. 2. To utilize the titration data to calculate the molarity of the hydrochloric acid. Materials: See handout for more info. Procedure: See handout for more info. Data and Calculations: Table 1: Volume of NaOH Required to Neutralize 10.00mL of Unknown HCl Molarity of NaOh | Trial 1 | Trial 2 | Trial 3 | Trial 4 | Initial Volume of...
    371 Words | 2 Pages
  • Lab: Testing for Acids and Bases
    PURPOSE Acids and bases surround us everywhere, and are an important part in our lives. From the products we use to clean our ovens to the grapes we eat, acids and bases are everywhere! The purpose of this lab is to observe the different ways to indicate and differentiate between an acid and a base by observing different reactions between common chemicals and substances. HYPOTHESIS Please refer to the observations EXPERIMENTS 1) Reacting active metals with Sulfuric acid 2) Reacting active...
    3,086 Words | 12 Pages
  • Acid-Base Lab - 1339 Words
    Anna Powell 2nd I.Title: Acid-Base Titrations AP Chemistry Laboratory #6 II.Purpose: The purpose of this experiment is to standardize a sodium hydroxide solution and use the standard solution to titrate an unknown solid acid. The equivalent mass of the solid acid will be determined from the volume of sodium hydroxide added at the equivalence point. The equilibrium constant, Ks, of the solid acid will be calculated from the titration curve obtained by plotting the pH of the solution...
    1,339 Words | 4 Pages
  • Identification of Amino Acids - 1148 Words
    IDENTIFICATION OF AMINO ACIDS BY MEANS OF TITRATION CURVE ABSTRACT The aim of the experiment was to identify an unknown amino acid through acid-base titrations which was prepared in water to form an acidic solution. Each group prepared unknown amino acid hydrochloride. The pre-prepared basic solution was slowly added to the amino acid solution and pH change was closely observed using the pH meter. During these titrations the amino acid converted from cation to zwitterion to anion; zwitterion...
    1,148 Words | 5 Pages
  • Electrophoresis of Amino Acids - 773 Words
    Electrophoresis of Amino Acids Introduction: Electrophoresis is a separation technique based on the movement of charged ions under the influence of an electrical field. This technique is primarily used for the separation of amino acids and peptides on the basis of their charge. All amino acids contain ionizable groups that cause the amino acids, in solution, to act as charged polyelectrolytes that can migrate in an electric field. The amino acids with a net positive charge will migrate...
    773 Words | 4 Pages
  • Fermentation Gluconic Acid - 5708 Words
    Appl Microbiol Biotechnol (2003) 62:92–98 DOI 10.1007/s00253-003-1222-x ORIGINAL PAPER M. Silberbach · B. Maier · M. Zimmermann · J. Büchs Glucose oxidation by Gluconobacter oxydans: characterization in shaking-flasks, scale-up and optimization of the pH profile Received: 20 September 2002 / Revised: 3 December 2002 / Accepted: 6 December 2002 / Published online: 26 February 2003  Springer-Verlag 2003 Abstract In this study, the advantage of a novel measuring device for the...
    5,708 Words | 19 Pages
  • Determination Of Ka For A Weak Acids
    Melissa Carrithers AP Chemistry period 6 2-11-15 Determination of Ka of Weak Acids Purpose: The purpose of this lab is to find the strength of weak acids by determining the equilibrium constants for their ionization reactions in water. Is to use their measured pH values to calculate the pKa for the two unknown weak acids thus determining their identities. Hypothesis: If we neutralize a solution that contains a weak acid by adding a strong base to the solution, then the ions will be isolated...
    920 Words | 5 Pages
  • Acids and Bases Lap Report
    Acids and Bases Mirza Hasan Mammadov Acids and bases are really important in our daily day life. So let’s start with telling the definitions of them. Starting with acids, they are a substance which dissociates in water in order to produce one or more hydrogen ions. Also we can write H+ instead of hydrogen ion. Bases have the same definition, although the difference is that it firm hydroxide ions instead of hydrogen ions. We can write OH- instead of hydroxide ion. All alkali is bases but...
    666 Words | 3 Pages
  • Acids And Bases HW 1
    Acids and Bases HW Calculate the pH of the following solutions (show work) 0.0010 M NaOH 0.01 M HCl 0.030 M HBr 2.50 M NH4OH (Assume 5.00 dissociation) 5.0 M HNO2 (Assume 1.0 dissociation) 0.150 M KOH 0.050 M Ca(OH)2 0.50 M HNO3 2.0 M HC2H3O2 (Assume 5.0 dissociation) 3.0 M HF (Assume 10.0 dissociation) Name the following H2SO4 ___________________________ HCl _____________________________ HNO3 __________________________ HF_______________________________ Fe(OH)2___________________________ Zn...
    117 Words | 1 Page
  • Effects of Acids on Fruit Oxidation
    Acidity’s effects on Fruit Browning Aim: To test whether the acidity of the surface area of an apple has an effect on the rate of enzymatic browning over 70 minutes. Hypothesis: the more acidic the surface area the longer it takes for the fruit to oxidise. Variables: Independent: acidity of surface area of the apple Dependent: the progression of melanin (brown pigment) after 70 minutes Controlled/fixed: time of day, knife used to cut fruit, portion of fruit, environment...
    1,040 Words | 10 Pages
  • Identify an Amino Acid - 529 Words
    Introduction Proteins are very important to the diet of all animals because they are essential for the function of all cellular activity (Baldwin, 2003). Catalyzing chemical reactions in the body, providing storage and transport as well as antibodies for our immune system are just a few of the many vital roles of proteins. Amino acids are the building blocks of proteins and there are twenty amino acids utilized by biological life (Baldwin,...
    529 Words | 2 Pages
  • Acids,Bases and Salts - 4287 Words
     Acid Base And Salt Acid Acids:- The word ‘Acid’ came from Latin word ‘Acidus or Acere’ which means sour. Sour taste is the most common characteristic of acid. Acid turns blue litmus paper red. There are many substances which contain acid and hence taste sour, such as curd, tamarind, lemon, etc. Types of Acids:- Acids are divided into two types on the basis of their occurrence – Natural acids and Mineral acids....
    4,287 Words | 16 Pages
  • titration acid base - 2346 Words
    Exercise 6: Acid-Base Titrations Nick Redmond Partner: Stephan Villavicencio Thurs. Section Lab date: March 19, 1998 Report date: April 6, 1998 Abstract: The equilibrium between acids and bases during a titration can be used to determine several characteristics of the acid or the base. Sodium hydroxide was standardized to 0.1035 M in three acid-base titrations of potassium hydrogen phthalate (KHP). This standardized NaOH solution was then used in a series of other titrations with...
    2,346 Words | 8 Pages
  • Acids, Bases and Natural Indicators
    INTRODUCTION: Nowadys, indicators have become technologically advanced and can be used for the main purpose of indicating whether something is acidic, basic or neutral. This is possible because in solutions of different pH, the colour of the inidcator will change simultaneously with pH change. This is made possible by pigments in the indicators. Hand made indicators include universal indicator, methyl orange, phenolphthalein and many more. Acids and bases are diverse in this world. They are...
    1,432 Words | 17 Pages
  • Acid Rain Case Study
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  • Acids In Solution Have A PH
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  • Introduction to Acids Base chemistry
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  • Extraction Extraction with acid and alkali
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  • Acid Rain and Its Chemistry
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  • Chemistry Acid-Base Titration
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  • Experiment: Acid and Litmus Paper
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  • Chemistry Acid and Base - 1021 Words
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  • Acid and Complete Neutralization Ml
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