___________________ Date ___________________ NEUTRALIZATION TITRATIONS INTRODUCTION The neutralization of hydronium or hydroxide ion to form water is widely used as the basis for volumetric determinations of acids‚ bases and salts of weak acids. The reaction is characterized by a rapid change in pH near the equivalence point‚ a change that is readily detected by an acid-base indicator or that can be followed electrically by use of a pH meter. Neutralization titrations are performed with standard
Free PH PH indicator Titration
PRACTICAL 15: DETERMINATION OF HEAT OF NEUTRALIZATION Data collection: |Reaction |Initial Temperature/°C (±0.25) |Final Temperature of Mixture/°C (±0.25) | | |Acid |Base | | |HNO3 + NaOH |28.00 |28.25 |34.50 | |HNO3 + KOH |28.25 |28.25 |34.00
Premium Sodium hydroxide Thermodynamics Acid
Determining the enthalpy of neutralization by calorimetry Anam Iqbal Partner’s name: Danielle Hodgson TA’s name: Karinna Section # 003 Due date: November 24‚ 2009 Introduction The purpose of the experiment is to determine the enthalpy of neutralization reactions by calorimetry. Calorimetry‚ is the science of measuring the amount of heat. All calorimetric techniques are therefore based on the measurement of heat that may be generated (exothermic process) or consumed (endothermic process). The
Premium Thermodynamics Enthalpy Sodium hydroxide
Heat of Neutralization Lab Objective: The objective of this lab was to measure‚ using a calorimeter‚ the energy changes accompanying neutralization reactions. Background: Chemical changes are always accompanied by a change in energy‚ typically as heat. If the reaction releases heat (ΔH < 0) then the reaction is exothermic. If the reaction absorbs heat (ΔH > 0) then the reaction is endothermic. The quantity of heat is measured experimentally by having the reaction take place in an insulated container called a
Premium
Analysis of Antacid Tablets Lab Lab date: June 9‚ 2011 Introduction: This lab is designed to provide the student with experience in understanding the principals of acid/base neutralization and to develop the laboratory skill of titration. Procedure: 1. Gather materials: 0.20 M HCl solution‚ 0.20 M NaOH solution‚ 50 ml burette‚ bromophenol blue‚ 150 ml flask‚ electronic scale‚ tripod stand‚ motor and pestle‚ Bunsen burner‚ Tums tablet‚ Rolaid tablet‚ and Equate tablet. 2. Weigh
Premium Sodium hydroxide Weight Mass
Which Antacid Works the Best? Heartburn is a condition characterized by a burning feeling in the chest and a sour or bitter taste in the mouth. Heartburn usually develops when the acidic contents of the stomach flow back‚ or regurgitate‚ into the esophagus‚ the muscular tube that carries food from the throat to the stomach. Approximately one in ten adults experience heartburn once a week. Heartburn is more common in pregnant women because of the pressure the expanding uterus exerts on the stomach
Premium Stomach
Calorimetry: Enthalpy of Neutralization Introduction: The purpose of this lab experiment was to determine the molar concentration of the unknown HCl by using a coffee cup calorimeter. A coffee cup calorimeter is made of Styrofoam cups with a thermometer that is placed from the top and into the calorimeter to measure the temperature as the reaction happens. The Styrofoam cup used for the calorimeter creates an isolated system as it acts as a heat insulator between the cup and the surrounding
Premium Thermodynamics Electrolyte Heat
ANTACIDS- Classification and Mechanism of Action INTRODUCTION Antacids are defined as a substance‚ generally a base‚ which counteracts stomach acidity. The name antacid means anti-acid (against acid). Antacids are the primary treatment for ailments such as gastric reflux‚ gastritis‚ upset stomach and heartburn. Hydrochloric acid is secreted by the stomach to kill harmful organisms‚ aid digestion and activate digestive enzymes. Excess secretion of acid into stomach or impaired resistance by
Premium Aluminium Calcium carbonate Magnesium
NEUTRALIZATION TEST FOR VIRUS Neutralization of a virus is defined as the loss of infectivity through reaction of the virus with specific antibody. Virus and serum are mixed under appropriate condition and then inoculated into cell culture‚ eggs or animals. The presence of unneutralized virus may be detected by reactions such as CPE‚ haemadsorption/haemagglutination‚ plaque formation‚ disease in animals. The loss of infectivity is bought about by interference by the bound Ab with any one of the
Premium Virus DNA Protein
1- The reaction HCl + KOH KCl + H2O is a a. synthesis reaction c. neutralization reaction b. ionization reaction d. decomposition reaction 2- What is the value of the self-ionization constant of water? a. 0 c. 1.00 107 b. 1.00 1014 d. 55.4 3- Pure water contains a. water molecules only. b. hydronium ions only. c. hydroxide ions only. d. water molecules‚ hydronium ions‚ and hydroxide ions
Premium Water Oxygen Chemistry