Sodium hydroxide Essays & Research Papers

Best Sodium hydroxide Essays

  • sodium hydroxide - 2750 Words
    Sodium hydroxide, also known as caustic soda,[2][3] or lye, is an inorganic compound with the chemical formula NaOH (also written as NaHO). It is a white solid, and is a highly caustic metallic base and alkali salt. It is available in pellets, flakes, granules, and as a 50% saturated solution.[citation needed] Sodium hydroxide is soluble in water, ethanol and methanol. This alkali is deliquescent and readily absorbs moisture and carbon dioxide in air. Sodium hydroxide is used in many...
    2,750 Words | 9 Pages
  • Standardization of Sodium Hydroxide - 1024 Words
    Chemistry 101 12-STANDARDIZATION OF SODIUM HYDROXIDE Standard solutions for titrations are especially pure mixtures with exactly known concentrations. Primary standards are very pure solids. They have the advantage that they can be weighed (the analytical balance is normally the most accurate instrument in the laboratory) and they are stable under laboratory conditions. In this experiment, the primary standard is oxalic acid dihydrate, H2C2O4 ( 2H2O. It will be used to standardize...
    1,024 Words | 5 Pages
  • Standardization of Sodium Hydroxide Solution
    Abstract. This report is about how to standardize a Sodium Hydroxide (NaOH) solution by titrating it with pure sample of Potassium acid Phthalate (KHC8H4O4). This experiment has two sections. The first section is to standardize the Sodium Hydroxide by titration. Three sample of 0.7 – 0.9 g of solid KHP are place into each of the three numbered Erlenmeyer flasks. 50 ml of distilled water are added to each three of it from graduated cylinder and constantly shake it until the KHP solution are...
    1,535 Words | 6 Pages
  • Saponification: Sodium Hydroxide and Soap
    1. Functions of Soap Soap primarily serves as a dirt remover and a cleanser. It is used in bathing, cleaning, and also as a lubricant. Oil, grease, and other forms of dirt do not dissolve in water. Conversely, soap can suspend these in such a way that it can be discarded through its ability to act as an emulsifying agent. This emulsifying agent enables the dispersion of liquid into another immiscible liquid. In this manner, oil does not mix with water whereby able to induce dirt. 2. Raw...
    590 Words | 3 Pages
  • All Sodium hydroxide Essays

  • Thermochemistry: Solid Sodium Hydroxide
    Thermochemistry Lab #2 - Heat of Reaction - Hess's Law Return The foundation of the study of thermochemistry was laid by the chemist Germain Hess, who investigated heat in chemical reactions during the last century. One statement of the law that bears Hess's name says: The enthalpy change for any reaction depends on the products and reactants and is independent of the pathway or the number of steps between the reactant and product. In this experiment, you will measure and...
    1,113 Words | 5 Pages
  • Chemical Reactions- Sodium Hydroxide
    Chemical Reactions- Sodium Hydroxide A chemical reaction is a change where two or more substances are changed into a new substance. You can identify a chemical reaction by colour change, effervescence (bubbles), when light or heat given off, and the change is usually irreversible. There are 6 main types of chemical reactions- combustion (often called burning), synthesis, decomposition, neutralization, single replacement and double replacement. A combustion reaction is a reaction with oxygen,...
    1,545 Words | 8 Pages
  • Vinegar: Sodium Hydroxide and Measuring Cylinder
    Who's been cheating on the vinegar? Aim: To investigate if the vinegars have been diluted by working out their concentrations. Scientific Background: Vinegar is an acid and there fore can be neutralised by an alkali. Acid + Alkali à salt + water Hydrochloric acid + Sodium Hydroxide à Sodium chloride + water Vinegar is a weak acid and therefore it only partially ionises in solution. CH3COOH ßà CH3COO- + H+ An alkali such as Sodium Hydroxide has a formula NaOH. If the...
    659 Words | 3 Pages
  • Organic: Sodium Hydroxide and Erlenmeyer Flask
    ABSTRACT OBJECTIVE To learn the concept of separating organic compounds by utilizing the concept of acid/base chemistry in so that separation can be done. INTRODUCTION Using acid base chemistry in the separation of substances can be a quite useful technique in organic chemistry. A basic extraction can be carried out by applying a hot solvent such as water to a dry substance like coffee. This will allow for the extraction of caffeine and flavor from the coffee beans. Acid base chemistry can be...
    783 Words | 3 Pages
  • Preparing Standard Solution of Sodium Hydroxide
    Preparing standard solution of sodium hydroxide. Method 1.4g of sodium hydroxide was weighed using the 0.1g balance and put into a small beaker. The small beaker and its contents were weighed using the 0.01g balance and the mass was recorded. The contents of the small beaker was transferred into a large beaker and the small beaker weighed again using the 0.01g balance. The mass was recorded then de-ionised water was added down the side of the large beaker. 150cm3 of water was used and...
    450 Words | 2 Pages
  • preperation and standardization of sodium hydroxide solution
    Experiment Eleven: Preparation and Standardization of a Sodium Hydroxide Solution Aim: The purpose of this experiment is to standardize a solution of sodium hydroxide by titration with a primary standard potassium hydrogen phthalate KHP. Materials Used: A pipette, a funnel, NaOH KHP, distilled water, a burette, three beakers, weighing paper, an analytical balance, and distilled water. In this experiment we determined the concentration of a sodium hydroxide solution to a high degree of...
    361 Words | 1 Page
  • Analysis of Acid by Titration with Sodium Hydroxide
    Stephanie Thao Chemistry 1151 Laboratory Analysis of acid by titration with sodium hydroxide Ms. Hoang November 2012 Introduction: The purpose of this experiment is to demonstrate an example of how to determine the unknown molarity of hydrochloric acid by titration with a base (sodium hydroxide). Titration is a common laboratory method of quantitative chemical analysis that is used to determine the unknown concentration of an identified analyte (wekipedia). The first step will be...
    1,163 Words | 4 Pages
  • Preparation and Standardization of a Sodium Hydroxide Solution
    Title: Preparation and Standardization of a Sodium Hydroxide Solution Objective/Purpose: The objective of this experiment will be the standardization of sodium hydroxide using potassium hydrogen phthalate by the titration method. Introduction: The concentration of solutions can be reported in terms of molarity and normality. Molarity is equal to: HCL, HBR, H2SO4, HNO3 M = mol Solute (mol) (Monoprotic) (Diprotic) _______________ V(L)g solutions...
    574 Words | 3 Pages
  • Textile: Sodium Hydroxide and 2. 3. 4. 5. 6. 7. 8
    Module Title: Textile Dyeing, Printing & Finishing. Module Code: TEX-203 Teacher Name: Md. Sadiqur Rahman Reference Book:  Dyeing and Chemical Technology of Textile Fiber. By – E.R. Trotman  Dyeing and Chemical Technology. By- V.A. Shenai Lecture: 02 Wet Processing: Wet processing is a technology which convents in grey fabric into finished fabric by the application of dye, water and auxiliaries. Wet processing is the combination of dyeing, printing and finishing. Sequence/Flow chart of wet...
    1,384 Words | 6 Pages
  • Potassium Hydroxide (Koh) - 1663 Words
    Potassium Hydroxide (KOH) Introduction Potassium hydroxide is an inorganic compound with the formula KOH, commonly called caustic potash. Along with sodium hydroxide (NaOH), this colorless solid is a prototypical strong base. It has many industrial and niche applications. Most applications exploit its reactivity toward acids and its corrosive nature. In 2005, an estimated 700,000 to 800,000 tonnes were produced. Approximately 100 times more NaOH than KOH is produced annually. KOH is...
    1,663 Words | 5 Pages
  • The Solubility of Calcium Hydroxide - 611 Words
    The solubility of calcium hydroxide Aim: to find out the solubility of a substance that only partially dissolves in water. Method: place about 100cm3 of distilled water in a flask and add about one spatula of solid calcium hydroxide. Stopper the flask and shake well for one minute. Leave to stand for at least 24 hours. Titrate 10cm3 samples against 0.05 mol dm-3 hydrochloric acid solution using methyl orange as an indicator. Obtain enough results to calculate an accurate average, and then...
    611 Words | 3 Pages
  • Impure Sodium Carbonate - 1585 Words
    Lab 4. Volumetric Determination of Impure Sodium Carbonate (Na2CO3) Introduction: To determine the total amount of carbonate in unrefined sodium carbonate, soda ash, a titration is done using a standardized solution of HCl. Aqueous HCl is a strong acid and therefore almost completely disassociates into H+ and CL-. Therefore, when HCl is used in a titration, the H+ is the titrant. Carbonate in aqueous solution is able to accept a proton, i.e. it acts as a base. When carbonate accepts the H+ a...
    1,585 Words | 6 Pages
  • Determination of Concentration of Potassium Hydroxide
    Determination of Concentration of Potassium Hydroxide Weigh boat 0.87g Weigh boat + Sulphamic acid 3.29g Weigh boat after transfer 0.87g Sulphamic acid 2.42g | Trial | 1st | 2nd | 3rd | 4th | 5th | Start | 3.00 | 3.20 | 5.20 | 18.55 | 1.90 | 14.65 | Finish | 17.35 | 18.10 | 18.10 | 31.50 | 14.65 | 27.65 | Titre | 14.35 | 14.90 | 14.90 | 12.95 | 12.75 | 13.00 | Average titre = 12.90cm3 NH2SO3H + KOH – NH2SO3K + H20 Sulphamic Acid Standard Solution Moles from...
    267 Words | 2 Pages
  • Sodium Chloride and Solution - 2928 Words
    Write your name here Surname Other names Edexcel Certificate Edexcel International GCSE Centre Number Candidate Number Chemistry Unit: KCH0/4CH0 Science (Double Award) KSC0/4SC0 Paper: 1C Monday 21 May 2012 – Morning Time: 2 hours You must have: Calculator Paper Reference KCH0/1C 4CH0/1C KSC0/1C 4SC0/1C Total Marks Instructions Use black ink or ball-point pen. Fill in the boxes at the top of this page with your name, centre number and candidate number. Answer all...
    2,928 Words | 33 Pages
  • Standardizing a Solution of Potassium Hydroxide
    Jay Patel 10/21/11-10/21/11 Lab Partners: Isha Dihora, Shivandu Patel, Dilan Kapadia Standardizing a Solution of Potassium Hydroxide Abstract: In this lab, a prepared solution of Potassium Hydroxide will be standardized. The solution we will be standardized by performing multiple calculations to ensure the upmost accuracy. The acid used for this titration will be KHP (C4H5KO4). Phenolphthalein we be added to the beaker of the dissolved acid before the titration will be added. The...
    447 Words | 2 Pages
  • Preparing Sodium Chloride - 277 Words
    Title: Preparing Sodium Chloride Abstract: In this practical I am going to prepare sodium chloride using sodium hydroxide + sodium chloride. Introduction: NaOH + HCL NaCl + H2O I am going to titrate 0.1 mol dm-3 sodium hydroxide with 0.1 mol dm-3, to find the exact proportions via titration. Aim:- To prepare sodium chloride using titration. Apparatus:- NaOH HCl Phenolphthalein Pipette Burette Conical flask Funnel Method: 1) Pour 0.1 mol dm-3 sodium...
    277 Words | 2 Pages
  • Sodium carbonate (Na2CO3) - 2684 Words
    Analysis of Soda Ash and Volumetric Analysis of a Carbonate-Bicarbonate Mixture Buti, Mary Daphne A. Department of Chemical Engineering, Faculty of Engineering University of Santo Tomas España, Manila Abstract Sodium carbonate (Na2CO3), commonly known by trade name soda ash, is a white, anhydrous, powdered or granular material that is an essential raw material used in the manufacturing of glass, detergents, chemicals, and other industrial products. In this experiment, the percent...
    2,684 Words | 9 Pages
  • preparation of sodium chloride through titration
     Preparation of Sodium Chloride through titration Abstract: acid-base titration is a technique commonly used to determine the moles of acid in a sample by adding a known volume of strong base of a known concentration. The strong base provides the hydroxide ion, to react quantitatively with the acid. The point at which the acid is completely and exactly consumed the known quantity of base is called the equivalence end point and is signalled by a colour change in the...
    1,296 Words | 6 Pages
  • Thermal Decomposition of Sodium Hydrogen Carbonate
    Chemistry Write-Up The Thermal Decomposition of Sodium Hydrogen Carbonate Aim: When Sodium Hydrogen Carbonate (NaHCO3) is heated, Carbon dioxide and water are given off to leave a white powder. The aim is to find the equations for this reaction. Hypothesis: The experiment will prove which of the equations below is true. It will tell us whether Sodium Carbonate is produced or Sodium Oxide. 2NaHCO3  Na2CO3 + CO2 + H2O 2NaHCO3  Na2O + 2CO2 + H2O Variables: Independent:...
    535 Words | 3 Pages
  • Analyze a solution of potassium hydroxide using standard hydrochloric acid Theory .
    Experiment 4: Analyze a solution of potassium hydroxide using standard hydrochloric acid Theory . Introduction: Titration is a procedure used in chemistry in order to determines the molarity of an acid or a base. In the other words, it is also consider as acid-base neutralization reaction (Darrell D. Ebbing 1976). A chemical reaction is set up between a know volume of a solution of unknown concentration and a known volume of a solution with a known concentration. The relative acidity...
    807 Words | 5 Pages
  • Sodium Benzoate: Chemical Changes at the pH Level Encountered in the Acidic Environment of the Stomach
    Consulting Chemists Institute Introduction The Consulting Chemists Institute was contracted by a local food manufacturer to determine if sodium benzoate, a common food preservative, undergoes significant chemical changes at the pH level encountered in the acidic environment of the stomach. Experimental Method Sodium benzoate was prepared by addition of an equimolar amount of aqueous sodium hydroxide (3 M, ~ 20 ml) to a benzoic acid (1.256 g, 10.3 mmol) /water mixture (10 ml)....
    503 Words | 2 Pages
  • Law of Conservation of Mass - 1072 Words
    Title: Law of Conservation of Mass Purpose: The purpose of the Law of conservation of Mass lab is for me to attempt to verify the Law of Conservation of Mass. Procedure: Acid Base Neutralization 1. Using 2 modified, beral pipettes fill pipet an about 1/5 full of white vinegar and pipette B about 1/5 full of 1.0 M NaOh (sodium hydroxide). 2. Place the 2 Pipets on the beam balance and read and record the total mass of the 2 pipets. 3. Carefully telescope the stem...
    1,072 Words | 4 Pages
  • Chemistry Lab Report on standardization of acid and bases
    Chemistry Lab Report on standardization of acid and bases. Purpose: To prepare standardize solution of sodium hydroxide and to determine the concentration of unknown sulfuric acid solution. Data and Calculations: This experiment is divided into two parts (Part A and Part B). In the first part of experiment, the standardize solution of sodium hydroxide is prepared by titrating it with base Potassium hydrogen phthalate (KHP). The indicator Phenolphthalein is used to determine that whether...
    1,631 Words | 5 Pages
  • Test for Cations and Anions - 516 Words
    Tests for Cations and Anions with Equations |CATION |TEST |OBSERVATION | |Copper Cu2+ |Add dilute sodium hydroxide solution | |...
    516 Words | 4 Pages
  • Heat of Neutralization - 532 Words
    Heat of Neutralization: Lab Report In part A of this lab I determined the heat capacity of a calorimeter made out of two Styrofoam cups nesting together with a cardboard top containing a hole in the middle. First I placed 50 mL of water in the calorimeter, waited five minutes for the water to reach equilibrium, and used the computer’s temperature instrument to record the final temperature of the system. Next I heated 50 mL of water in a 250 mL beaker until the water reached 43.1 C...
    532 Words | 2 Pages
  • Calorimetry and Hess' Law - 1287 Words
    Experiment 11 Calorimetry and Hess’s Law Purpose- To determine the change in enthalpy for four reactions using calorimetry and Hess’s Law Procedures: A. Calibration of the Calorimeter 1. Obtain two copper cylinders and a Styrofoam cup with lid from your lab instructor. Check out a digital thermometer display from the storeroom window. 2. Set up a hot water bath using a 600mL beaker, ring stand, and Bunsen burner. Weigh the two copper...
    1,287 Words | 5 Pages
  • Determination of the Equilibrium Constant of an Unknown
    Determination of the Equilibrium Constant of an Unknown Ester Hydrolysis Reaction Abstract The experiments to follow determined that the equilibrium concentrations of the reaction: ester + water ↔ alcohol + acid, are equal to 0.0363 moles of ester, 0.2852 moles of water, and 0.0268 moles each of alcohol and acid. Using this information the equilibrium constant was determined to be 0.06938. 1. Introduction In this lab the equilibrium constant, Kc, for the acid catalyzed...
    986 Words | 5 Pages
  • The Utilization Of Broccoli Plant (Brassica oleracea) as an Moisturizer Soap
    Department Of Education Col. Patrocinio Artuz National High School Taft Tapaz, Capiz “The Utilization Of Broccoli (Brassica oleracea) As A Skin Moisturizer” Prepared by: Jonas James G. Dignadice TABLE OF CONTENTS I. Title II. Abstract III. Introduction a). Background of the Study b). Statement of the Problem c.) Objectives d.) Scope and Limitation e.) Definition of Terms f.) Review of the Related Literature...
    3,289 Words | 10 Pages
  • Vinegar Titration Lab - 574 Words
    Vinegar Titration Lab Procedure: 1.) Obtain ~100 mL of NaOH. Record the molarity on the data table. 2.) Set up a ring stand with a buret. 3.) Place 5mL of vinegar in a 125 mL Erlenmeyer flask. Dilute the vinegar with 25 mL of water and add two drops of phenolphthalein. 4.) Fill the buret with NaOH. Record the initial volume of the buret in your data table. 5.) Titrate the vinegar sample until the first faint pink color does not disappear. 6.) Record the final volume of the buret in your...
    574 Words | 3 Pages
  • Chem Formal Lab - 1250 Words
    Ghazali Ahmad Dec. 1 2008 SCH-3U Mr.Landry The Concentration of Acetic Acid in Vinegar Lab The lab I have done is the Concentration of Acetic Acid Lab. In this lab we find the concentration of the acetic acid in the 10 ml of vinegar I had. This kind of lab is called a titration. A titration can be defined as a procedure used to accurately determine the concentration of an unknown solution. Vinegar is an acid, which means that in a chemical reaction it will donate its hydrogen ion....
    1,250 Words | 5 Pages
  • Red Dye - 1196 Words
    Introduction The membrane of a living cell plays a vital role in regulating what goes into and out of the cell. Some characteristics of cell membranes are discovered in this exercise. Background The following information is key for the interpretation of the results of this experiment 1. Neutral red is a vital stain. It stains cells without quickly killing them. Many biological stains kill living cells. 2. Neutral red goes through an obvious color change, from red at about pH 6.8 to...
    1,196 Words | 5 Pages
  • Solution Test Review W Full Answers0
     Solution Review Complete all questions in this package. Be careful to use correct significant figures and units for any calculation problems. For all chemical equations use phase subscripts. Concentration 1. Calculate the concentration of the solution formed when 23.61 g of sodium phosphate is dissolved in 475.0 cm3 of water. 2. What volume of water is needed to dissolve 85.8 g of silver nitrate to make a 2.650 M solution? 3. What mass of magnesium sulphate is needed to make...
    907 Words | 5 Pages
  • Preparation of Cyclohexene from Cyclohexanol
    Title: Preparation of Cyclohexene from Cyclohexanol Aim: To prepare an alkene, cyclohexene, by the dehydration of an alcohol, cyclohexanol, and better understand the processes that take place during this reaction. Introduction: One of the common ways of preparing an alkene is through the dehydration of an alcohol. In this experiment cyclohexanol is dehydrated to prepare cyclohexene while using sulfuric acid as a catalyst. A bromine test can be later done to ensure that the end product...
    858 Words | 3 Pages
  • PRODUCTION OF SOAP - 290 Words
    Add a Bit of Salt for a Harder Bar Quicker By David Fisher Ads: How to Make Soap Soap Supplies Homemade Soap Soap Bar Soap Making Ads Palm Oil Analysiswww.palmoiltester.comFast easy test at production line. Peroxide Value, FFA, DOBI Look Good with Just 1Kwww.Taafoo.ComShirts, Tees, Sneakers, Belts, etc Look Good & Save Money. Shop Now Soap Plant & Machinerywww.britsoap.netSoap Plant with British design & technology and with Indian prices The hardness of your soap is...
    290 Words | 2 Pages
  • Aspirin - 1756 Words
    Name: IVAN KOE ZHI EN Student ID: 139078844 Date: 4/12/2013 Title: Kinetics and hydrolysis of aspirin Abstract: For kinetics experiment, the aim of the experiment is to determine the rate constant for the hydrolysis of an ester that undergoes a quench reaction. The first order reaction depends on the concentration of a single reactant that may produce the rate of reaction. For aspirin hydrolysis experiment, this experiment is to determine the mechanism involved in hydrolysis of...
    1,756 Words | 8 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
  • Compare City Planner and Planner
    w w w e tr .X m eP e ap UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education .c rs om *2925136620* CHEMISTRY Paper 3 (Extended) 0620/33 May/June 2012 1 hour 15 minutes Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a pencil for any diagrams,...
    2,072 Words | 20 Pages
  • Determination of Enthalpy Change of Neutralization
    CHEMISTRY DETERMINATION OF ENTHALPY CHANGE OF NEUTRALIZATION IA Criteria Assessed: DCP CE MS Introduction When an alkali neutralizes an acid, a salt and water are formed. Aqueous hydrogen ions (H+(aq)) from the acid react with the hydroxide ions (OH- (aq)) from alkali, forming water. The identity of salt will depend on the nature of the acid and alkali used. H+(aq) + OH- (aq) → H2O(L) The combination of H+ and OH- ions in this way releases energy. In this practical,...
    1,572 Words | 7 Pages
  • Standardization of Acid/Base - 1558 Words
    STANDARDIATION OF ACID AND BASE Eunice Ivy B. Gamboa ABSTRACT Solutions of known concentration are prepared by dissolving measured masses of standard acids in distilled water. The concentrations of unknown solutions of sodium hydroxide are determined by titration. An acid solution reacts with a base solution in a "neutralization" reaction. Titrations permit the concentrations of unknown acids/bases to be determined with a high degree of accuracy. In order to analyze unknown acids/bases, we...
    1,558 Words | 6 Pages
  • Chemistry - 1853 Words
    UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary Level 5070/31 CHEMISTRY Paper 3 Practical Test October/November 2010 CONFIDENTIAL INSTRUCTIONS *4711088250* Great care should be taken to ensure that any confidential information given does not reach the candidates either directly or indirectly. The Supervisor’s attention is drawn to the form on page 7 which must be completed and returned with the scripts. If you have any problems...
    1,853 Words | 15 Pages
  • Aspirin Write Up - 640 Words
    Determining the Percentage of 2-ethanoylhydroxybenzoic Acid in an Aspirin Tablet Introduction and Aim: An Aspirin tablet is an analgesic; therefore the purpose is to relieve pain and due to it also being an antipyretic its other tenacity is to lower the body temperature. An experiment was carried out on the basis of calculating the percentage of 2-ethanoylhydroxybenzoic Acid in aspirin tablets hence 4 commercial tablets were taken to determine its purity using a known volume of standard sodium...
    640 Words | 2 Pages
  • Agar IB Lab DCP Practice 2015 DP
    3DIFUSSION IN AGAR CUBES – LAB REPORT Research Question: What is the effect of surface area on volume ratio on the rate of diffusion of pigment from the agar cube measured by percentage volume of diffusion over time? Background Research: Diffusion is the passive movement of molecules or particles along a concentration gradient, or from high to low concentration regions. Essential towards living organism’s functions, as it describes how the nerve cells are able to communicate with each other,...
    2,400 Words | 13 Pages
  • LAB 1 - 2154 Words
     UNIVERSITI TEKNOLOGI MARA FAKULTI KEJURUTERAAN KIMIA ENGINEERING CHEMISTRY LABORATORY (CHE 485) GROUP : GROUP 1 EXPERIMENT : 1 - DETERMINATION OF THE CONCENTRATION OF ACETIC ACID IN VINEGAR DATE PERFORMED : 26TH OF SEPTEMBER 2013 SEMESTER : 1 PROGRAMME/CODE : EH220 - BACHELOR OF CHEMICAL ENGINEERING (HONS.) Table of content NO Title Allocated Marks (%) Marks 1 Abstract / Summary 5 2 Introduction 5 3 Aims 5 4 Theory 5 5...
    2,154 Words | 17 Pages
  • Chemistry Distinguish - 345 Words
    PAGE NO.121(CHAPTER-9 CHEMISTRY PRACTICALS) Q4.How would you distinguish between the following: a)Calcium nitrate and lead nitrate using ammonium hydroxide Ans: Add ammonium hydroxide to the given substance, calcium nitrate does not form any ppt. with ammonium hydroxide. But lead nitrate forms chalky white ppt. With ammonium hydroxide b)Calcium nitrate and lead nitrate using sodium hydroxide solution Ans: Add sodium hydroxide to the given substance, Calcium nitrate forms milky white...
    345 Words | 2 Pages
  • Titration Lab Write Up - 1144 Words
    Abstract The purpose of this experiment is to determine the concentration of acetic acid in vinegar by using 0.1 M HCl and NaOH solution. By performing three titrations to determine the concentration of the base, the concentration of the acid was determined to be 0.600 M. It was possible to determine its concentration by standardizing the sodium hydroxide solution used for the first three titrations and by using phenolphthalein to indicate its equivalence point. In conclusion, although there...
    1,144 Words | 5 Pages
  • Preparation and Properties of soap - 1816 Words
    Experiment 3: Preparation and Properties of Soap Objectives: i) To be able to prepare a soap starting with olive oil and animal lard. ii) To examine the chemical properties of the soap that is made. iii) To determine the theoretical yield and experimental yield of soap. Introduction: A soap is a salt of a fatty acid. Fatty acids are carboxylic acids with a long unbranced hydrocarbon (aliphatic) chains. It contains at least 12 carbons and a carboxylic acid group. Materials and...
    1,816 Words | 7 Pages
  • Le Chatelier’s Principle - 506 Words
    Abstract In this experiment, we determined the effect of a change on a system at equilibrium and correlated that to Le Chatelier’s Principle. Introduction Le Chatelier’s Principle says that when a system at equilibrium is put under stress, it will correct itself to relieve the stress and reestablish equilibrium. Equilibrium can be defined in a chemical reaction as when reactants are made into products at the same rate as products revert to reactants. A chemical system at equilibrium can...
    506 Words | 2 Pages
  • Acid-Base Titrations - 1141 Words
    Acid-Base Titrations A Titration of Potassium Hydroxide Phthalate and Sodium Hydroxide Hanna Piper Department of Chemistry, SUNY College at Brockport, Brockport, NY 14420 Chemistry 205.06 Abstract Titrations are used to find the molarity of an unknown solution. A titration begins with an analyte and titrant being used to measure the unknown molarity of the analyte. In the following experiment, sodium hydroxide was used as the titrant and potassium hydroxide phthalate was used as...
    1,141 Words | 4 Pages
  • Lye (Alkalive Substance) - 690 Words
    Lye is a corrosive alkaline substance, commonly sodium hydroxide (NaOH, also known as 'caustic soda') or historically potassium hydroxide (KOH, from hydrated potash). Previously, lye was among the many different alkalis leached from hardwood ashes.[1] Today lye is commercially manufactured using a membrane cell method. Solid dry lye is commonly available as flakes, pellets, microbeads, and coarse powder. It is also available as solution, often dissolved in water. Lye is valued for its use in...
    690 Words | 3 Pages
  • SOAP - 1170 Words
     CHEMISTRY PROJECT TOPIC : SOAP NAME : Jennifer Joan Cadilla CLASS & SECTION : XII ‘B’ RESGISTER NUMBER : REMARKS : TEACHER’S SIGNATURE: SOAP: TRIGLYCERIDES: SOAP: What is soap? A substance used with water for washing and cleaning, made of a compound of natural oils or fats with sodium hydroxide or another...
    1,170 Words | 5 Pages
  • To Determine the Percentage by Mass of Calcium Carbonate in Eggshells
    Aim The purpose of this experiment is to determine the percentage by mass of calcium carbonate in eggshells. Introduction To avoid the breakage of eggs before reaching market, the eggshells needs to be as strong as possible. The strength of eggshells is mainly determined by the percentage of calcium carbonate in it. In order to monitor the quality of eggshells, the following experiment has to be done to determine the percentage of calcium carbonate in eggshells. In this experiment, back...
    1,057 Words | 4 Pages
  • Back Titration Powerpoint - 657 Words
    Back Titrations Question 1 A 10.0 g piece of rusty steel wool is dissolved in 200.00 ml of 1.00 M sulfuric acid. The excess sulfuric acid is determined by titration with a 0.500 M sodium hydroxide solution. 300.00 mL of sodium hydroxide is required to neutralise the acid. What was the % purity of iron in steel wool? Question 2 A 3.145 g sample of a certain lead ore containing lead(II) carbonate, PbCO3, was heated gently with 25.00 mL of nitric acid of...
    657 Words | 3 Pages
  • Acid-Base Titration essay
    Acid-Base Titration Pre-Lab Discussion In the chemistry laboratory, it is sometimes necessary to experimentally determine the concentration of an acid solution or a base solution. A procedure for making this kind of determination is called an acid-base titration. In this procedure, a solution of known concentration, called the standard solution, is used to neutralize a precisely measured volume of the solution of unknown concentration to which one or two drops of an appropriate...
    3,938 Words | 16 Pages
  • Hess Law - 1078 Words
    Heat of Reaction and Hess’s Law Introduction: Hess’s Law is a very useful relationship that allows the calculation of the heat of reaction for reactions on paper (without carrying out an actual experiment of that particular reaction). You must first know the heats of reaction for related reactions that add algebraically to give the desired reaction. If it can be shown that reaction 1 + reaction 2 = reaction 3, then Hess’s Law states that H1 + H2 =H3. Thus, if you know the heats of...
    1,078 Words | 5 Pages
  • Production of Soap - 1157 Words
    PRODUCTION OF SOAP, CHEMICALS USED Oil: This is the major composition of soap as it contains fatty acid which must be hydrolysed by caustic soda to form soap. Caustic soda: This is generally known as sodium hydroxide. It is a white crystalline solid. It dissolves readily in water to give aqueous solution and liberates substantial amount of heat in the process of dissolution. It plays a major role in soap formation by hydrolyzing free fatty acid components of the oil to yield soap and glycerol....
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