Hydrochloric acid Essays & Research Papers

Best Hydrochloric acid Essays

  • Hydrochloric Acid - 539 Words
    ICSE Class X Chapter 5 Hydrogen Chloride and Hydrochloric Acid Hydrogen chloride (HCl) : Formula : HCl Nature : Covalent. Molecular Mass : 36·5u [i.e. HCl = 1 + 35·5 = 36·5] Occurrence : (i) Present in gastric juices. (ii) Present in volcanic gases. Laboratory preparation of HCl gas : Hydrogen chloride gas is prepared in laboratory by heating conc. H2SO4 with NaCl. NaCl + H2SO4 Heat  → NaCl + NaHSO4 Heat  → NaHSO4 + HCl Sodium hydrogen sulphate Na2SO4 +...
    539 Words | 5 Pages
  • Standardisation of Hydrochloric Acid Report
    STANDARDISATION OF HYDROCHLORIC ACID REPORT Aim: To standardize an unknown solution of hydrochloric acid Method: See INSTRUCTIONS for practical 6.2 & 6.3 Results: Attempt No. | Titre (mL) | | 1 | 20.9 | Rough Titration | 2 | 20.5 | | 3 | 20.7 | Concordant Titres | 4 | 20.7 | | 5 | 20.7 | | (1) Tabled Results (2) Concordant Titrations Results 20.7 mL | 20.7 mL | 20.7 mL | Average of Concordant: (20.7 + 20.7 +20.7) 3= 20.7 mL Calculations:...
    524 Words | 3 Pages
  • Reaction with Hydrochloric Acid
    HCL MAGNESIUM Mg(s) + 2HCl(aq) ---> MgCl2(aq) + H2(g) magnesium is a highly reactive metal hence, reacts very fast; lots of bubbles produced; on testing with a lighted splinter a pop sound was produced hence the gas produced is hydrogen. magnesium chloride solution is produced. Since heat energy is given out, the reaction is a exothermic reaction. ALUMINUM It can be happened because the reactivity of Al can move H+ ion from HCl. Theoretically, the energy that needed to oxidize Al...
    379 Words | 2 Pages
  • Standardization of Hydrochloric Acid by Sodium Carbonate
    Standardization of hydrochloric acid by sodium carbonate Concentrated hydrochloric acid is roughly 11 M. Pour out into a measuring cylinder about 2 cm3 of concentrated hydrochloric acid. Transfer it to a 250 cm3 flask and make up to the mark with water. Shake well. Put some pure sodium hydrogen carbonate or anhydrous sodium carbonate into an evaporating dish and heat gently over a low flame for about fifteen minutes, stirring continuously. Take care not to heat the mass too strongly or...
    553 Words | 2 Pages
  • All Hydrochloric acid Essays

  • Investigation of Hydrochloric Acid with Indigestion Tablet
    Introduction In this coursework I will be talking about the experiments, which I have done over two weeks. This gave different results by using different concentrations of hydrochloric acids (HCl) and indigestion relief tablet. I will also mention the time which was taken in the experiment, to see how fast the hydrochloric acid took with indigestion tablet with different concentrations. Indigestion tablets are alkali and they are used for to neutralise the excess acid in the stomach....
    1,243 Words | 6 Pages
  • DCP: Determine pH of a hydrochloric acid solution
    IB1 DCP: Determine pH of a hydrochloric acid solution Chemistry SL IB1 Charlotte PG 5/13/2013 During this experiment an investigation has been made to determine the pH of a HCl solution in NaOH. The laboratorial results and data are presented in the following report.   Introduction During this experiment an investigation was made to determine the pH of a HCl solution with sodium hydroxide (NaOH). Material Burette Pipette Beaker e-flask BTB HCl NaOH Stand...
    1,087 Words | 5 Pages
  • Measuring the Loss in Mass of Marble Chips and Hydrochloric Acid
    Title: Measuring the loss in mass of Marble chips and Hydrochloric acid Aim: We will measure the loss in mass of the marble chips (CaCO 3 ) as it reacts with Hydrochloric acid (HCl). This one method of measuring the rate of reaction. We will use a balance to measure this mass loss as the reactants are used up to form product. Safety: * As Hydrochloric acid is corrosive wear a lab coat, gloves and safety goggles. * Take care when using the glassware not to cut yourself. *...
    589 Words | 2 Pages
  • Reaction (rate) between magnesium ribbon and hydrochloric acid
    Aim It is to tell how the reaction between magnesium and hydrochloric acid will be effected if we change the concentration of hydrochloric acid. Introduction In the experiment the magnesium reacts with the hydrochloric acid to create magnesium chloride and hydrogen. The balanced formula for this is: Mg(s) + 2HCL(aq) MgCl2(aq) + H2(g) Magnesium + hydrochloric acid Magnesium Chloride + Hydrogen Magnesium will react with hydrochloric acid, because it is higher in the reactivity series than...
    2,281 Words | 9 Pages
  • To Investigate How Does the Concentration of Hydrochloric Acid Affect the Rate of Reaction?
    To investigate how does the concentration of Hydrochloric acid affect the rate of reaction? Outline I aim to discover how different concentrations of Hydrochloric acid influence the rates of reaction. In order to carry out this investigation I have decided to use marble chips, which I will vary the sizes as powder, small chips and large chips. I will also be changing the concentration, the different concentrations are as follows 0.2m, 0.5m, 1m, 1.5, 2m. I have chosen these concentrations as...
    1,775 Words | 7 Pages
  • An Investigation Into the Factors Affecting the Rate of the Reaction Between Calcium Carbonate and Hydrochloric Acid
    An Investigation into the Factors Affecting the Rate of the Reaction between Calcium Carbonate and Hydrochloric Acid A chemical reaction is the process by which atoms or groups of atoms are redistributed, resulting in a change in the molecular composition of substances. The reaction rate is how quickly a reaction occurs and this can be affected by four different factors: ¡¤ changing the surface area of any solids involved ¡¤ changing the concentration of reactants in solution ¡¤ changing...
    2,478 Words | 7 Pages
  • Effect of Temperature on the Rate of Reaction Between Hydrochloric Acid and Calcium Carbonate
    Introduction: Temperature - Is a measure of the motion of particles, increasing the temperature will cause the particles to move faster because the reactant particles have more thermal energy from the heat. When particles move faster, more frequent collisions will occur and the collisions are more violent. This should increase the reaction rate. This will result in the particles colliding more frequently and increasing the speed of the reaction. Also when they have more energy there will be...
    570 Words | 3 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
  • 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
  • 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
  • acids and bases bio 102
    Results: For the solutions acid and bases lab the results my group received are as followed. Procedure 5.1 were we had to measure the ph of the following substances Vinegar 4 Apple Juice 4 Black coffee 5 Baking Soda + Sprite 8 0.01mM HCl 4 0.1mM HCl 3 Distilled water 4.5 Tap Water 5 Procedure 5.2 -Test the ability of buffers Before Buffer After Buffer Water 4 Water 4 0.1M phosphate buffer 6.5 0.1M Phosphate buffer 6.9 0.1M NaCl 4 0.1M NaCl 4.8 Procedure...
    306 Words | 2 Pages
  • 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
  • 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 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
  • Disappearing X Experiment. Coursework about sodium thiosulphate and hydrochloric acid. Method, Results, Fair Testing, Evaluation included. Was marked with a passing grade.
    Disappearing X Experiment Introduction I am going to investigate the rate of reaction between sodium thiosulphate (thio) and hydrochloric acid. Hydrochloric Acid + Sodium Thiosulphate "" sodium chloride + water + sulphur The reactants are both colourless, but one of the products, sulphur, is yellow, so we can use this fact to follow the rates of reaction. I am going to investigate how the concentration of the acid effects the speed of the reaction. Apparatus 1 small measuring cylinder 1...
    654 Words | 5 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
  • 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
  • Antacids: Stomach Acid - 1029 Words
    Ninnah Gendill CHE 112-701 Formal Lab Report Analysis of Antacid Tablets I. Introduction An acid-base titration is a method of neutralizing strong acids. Unbeknownst to many, acid-base titrations occur on a daily basis. Our stomachs use acid to help us digest our food – approximately .155 hydrochloric acid (HCl) with a pH of 2-3. When too much of this acid is formed in the stomach, heartburn and other discomfort occurs. This is when people grab for their...
    1,029 Words | 5 Pages
  • Acid Base Questions - 3404 Words
    ACID/BASE You might need to know the following K values: CH3COOH Ka = 1.8 x 10–5 Benzoic Acid Ka = 6.5 x 10–5 HNO2 Ka = 4.5 x 10–4 NH3 Kb = 1.8 x 10–5 HF Ka = 7.2 x 10–4 H2S Ka = 5.7 x 10–8 HSO4– Ka = 1.2 x 10–2 HS– Ka = 1.2 x 10–13 HCOOH Ka = 1.8 x 10–4 HOCl Ka = 3.0 x 10–8 SIMPLE ACIDS AND BASES 1. According to the Brønsted–Lowry definition, which species can function both as an acid and as a base? (A) Cl– (B) SO42– (C) NH4+ (D) HCO3– (E) H3O+ 2. Which of the...
    3,404 Words | 15 Pages
  • Preparation and Reactions of Boric Acid
    Experiment 6 Preparation and reactions of boric acid Objectives: To prepare boric acid from sodium tetraborate (borax) To carry out tests on the prepared sample of boric acid To study the physical and chemical properties of boric acid Introduction: Boron is an element in the p-block of the periodic table. It has the electron configuration of 1s22s22p1 and is in group 3 or goup 13 (IUPAC classification). In nature, it consists of two isotopes 10B (19.6%) and 11B (80.4%). Boron is...
    1,183 Words | 4 Pages
  • Chemistry Acid-Base Titration
    Chemistry: Strong Acid and Weak Base Titration Lab Cherno Okafor Mr. Huang SCH4U7 November 21st, 2012 Data Collection and Processing Concentration of the standard HCl solution: 0.1 M Data Collection: | Trial 1 | Trial 2 | Trial 3 | Final HCl Buret Reading ± 0.05 mL | 38.3 | 45 | 54.5 | Initial HCl Buret Reading ± 0.05 mL | 29.9 | 38.3 | 45 | Volume of NaHCO3 used ± 0.1 mL | 9.2 | 9.5 | 9.8 | Qualitative Data: * I used...
    1,487 Words | 5 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
  • 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
  • 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
  • Preparation and Properties of Boric Acid
    Preparation and properties of boric acid Result The mass of borax, g | 10.0734 | The mass of watch glass, g | 36.2842 | The mass of watch glass with product, g | 39.9803 | The mass of product, borix acid, g | 3.6961 | Test | Result | Boric acid is dissolved in water and methyl red indicator is added. | Pink solution is observed | Mannitol is dissolved in water and methyl red indicator is added. | Pink solution is observed | Both solution is added together | The colour of...
    746 Words | 3 Pages
  • Acid and Base Lab Report
    Lab Report: Acid and Base Indicator Lab The title of my lab report is “Acid and Base Indicator Lab” this lab is testing what household solutions area bases depending on what color they changed. You have to use the pH balance scale to determine Acid, Base, and Neutral. On this lab we used 7 different solutions to determine if it’s either base, acid, and neutral. These are ammonia, vinegar; drain cleaner, soft drink, baking soda, detergent, and lemon juice are the solutions that are going to...
    532 Words | 2 Pages
  • Acid Base Titration Lab
     Acid/ Base Titration Lab Design III Materials: Goggles HCl NaOH Distilled Water Label Beaker Graduated Cylinder Pipet Stirring rod Buret with clamp Stopper Ring Stand Utility Clamp Computer Computer Program pH probe Procedure: 1) 2) Goggles were put on. 3) 0.1 M NaOH solution was made using 0.4 g NaOH and 100 mL distilled water. The ingredients were added together in a beaker and stirred. 4) The buret was standardized by adding 10 mL of distilled...
    658 Words | 7 Pages
  • Acid and Bases Ib - 13523 Words
    Acids And BAses Acids And BAses 8.1 8.2 8.3 8.4 18.1 18.2 18.3 18.4 18.5 Theories of acids and bases Properties of acids and bases Strong and weak acids & bases The pH scale Calculations involving acids and bases (AHL) Buffer solutions (AHL) Salt hydrolysis (AHL) Acid-base titrations (AHL) Indicators (AHL) 8 8.1 THeORies OF Acids And BAses 8.1.1 Define acids and bases according to the Brønsted–Lowry and Lewis theories. 8.1.2 Deduce whether or not a species could act as a...
    13,523 Words | 58 Pages
  • Identification of an Unknown Organic Acid
     Identification of an Unknown Organic Acid Chem 1211K Lab Drawer #15 Wednesday November 13th, 2013 Unknown Number: 3334025-CF13 Table of Contents Pg. # Abstract 3 Experimental Report 4-7 Results and Discussion 7-12 Conclusion 13 **pKa Graph 14 Abstract Identifying this organic acid was an extensive task that involved several different experiments. Firstly, the...
    2,618 Words | 14 Pages
  • Hydro Chloric Acid - 2873 Words
    ------------------------------------------------- Hydrochloric acid From Wikipedia, the free encyclopedia (Redirected from Muriatic acid) Not to be confused with hydrogen chloride. Hydrochloric acid | | | | Other names[hide] * Muriatic acid[1] * Spirits of salt[2] | Identifiers | CAS number | 7647-01-0 | ChemSpider | 10633809 | UNII | QTT17582CB | EC number | 231-595-7 | ChEMBL | CHEMBL1231821 | ATC code | A09AB03,B05XA13 | Properties | Appearance |...
    2,873 Words | 10 Pages
  • Acid - Base Titration Experiment
    Experiment – Acid-Base Titration Name: Zeinab Ossaili Date: 24th January 2011 Group: S2 Title: /[1] Titration: Concentration of HCl/H2SO4 in NaOH Objective: /[1] To determine the concentration of a hydrochloric acid and sulphuric acid solution by titrating it using sodium hydroxide solution. APPARATUS AND METHOD: Apparatus: /[1] Dilute hydrochloric acid, dilute sulphuric acid, 0.1M sodium...
    1,203 Words | 6 Pages
  • Acid Base Titrations - 1117 Words
    Acid and Base Titrations: Preparing Standardized Solutions Introduction: This experiment focuses on titrations of acids and bases. A titration depends on addition of a known volume of solution and is a type of volumetric analysis. Many titrations involve either acid-base reactions or oxidation-reduction reactions. In this experiment we do one of each. We monitor the pH of the reaction with the use of a color indicator. We also learn about the standardization of bases (NaOH) and acids (HCl)...
    1,117 Words | 5 Pages
  • Acids, Bases and Salts - 568 Words
    Acid: A chemical substance (typically, a corrosive or sour-tasting liquid) that neutralizes alkalis, dissolves some metals, and turns litmus red. Ionic Dissociation: Dissociation in chemistry and biochemistry is a general process in which ionic compounds (complexes, or salts) separate or split into smaller particles, ions, or radicals, usually in a reversible manner. Strength of Acids: The strength of an acid refers to its ability or tendency to lose a proton. There are very few strong acids....
    568 Words | 2 Pages
  • Concentration of Acid and Indigestion Tablet
    Search by keyword: Sort By: Home Search Essays FAQs Tools Lost Essay? Contact Essay Color Key Free Essays Unrated Essays Better Essays Stronger Essays Powerful Essays Term Papers Research Papers Privacy Our Guarantee Popular Essays Excellent Essays Free Essays A-F Free Essays G-L Free Essays M-Q Free Essays R-Z Essay Topics Plagiarism Donate a Paper An Investigation to see How the Concentration of Hydrochloric acid affects the Rate of...
    3,171 Words | 11 Pages
  • Extraction with Acid and Alkaline
    Title:Extraction:Extraction with acid and alkaline Objective: 1. To recover benzoic acid and p-dichlorobenzene from its mixture using acid-alkaline extraction. 2. To determine the percentage recovery and melting point of benzoic acid and p-diclorobenzene. Apparatus:Separatory funnel(250mL),Buchner funnel,beaker. Materials:Benzoic acid,p-dichlorobenzene,ether,10% NaOH,conc.HCl,distilled water, anhydrous CaCl2. Introduction: Organic compounds in an aqueous mixture can be...
    2,043 Words | 7 Pages
  • Separation of a carboxylic acid - 2880 Words
    Separation of a Carboxylic Acid from a Neutral Compound by Extraction Reference: Smith, Chapter 2 (Acids and Bases) Introduction Carboxylic acids and phenols are two families of organic compounds that contain carbon, hydrogen and oxygen, and also react with water to yield an excess of hydronium ions over hydroxide ions. Pure water has a pH of 7, which means it has a hydronium ion concentration, [H3O+] of 10-7 M (M = molarity, moles/Liter). The hydronium ions in pure water come from the...
    2,880 Words | 10 Pages
  • chemistry notes on strong acids
     AP Chemistry Name _________________________________ Period ___ Date __/__/__ 4  Reactions in Aqueous Solution Precipitate Practice #1 Write balanced molecular and detailed ionic equations. Strike out any spectator ions. 1. Solutions of lead nitrate and potassium chloride are mixed. Pb(NO3)2(aq) + 2 KCl(aq)  PbCl2(s) + 2 KNO3(aq) Pb2+ + 2 NO3- + 2 K+ + 2 Cl-  PbCl2(s) + 2 K+ + 2 NO3- 2. Solutions of sodium sulfate and calcium bromide are mixed....
    523 Words | 3 Pages
  • Handling a Sulphuric Acid Spill. Includes background information on Acids and Bases.
    P IntroductionThere has been a spill of concentrated sulphuric acid at the chemical plant where I work at as the Safety Engineer. In this report, I will explain what Sulfuric Acid is, the health risks and hazards associated with it, the safety precautions that should be taken and how the spill should be handled. Sulfuric Acid, H2SO4, also commonly known as battery acid or vitriol, is one of the top products in the chemical industry, with 40 million tons produced annually in the U.S. It is a...
    2,771 Words | 9 Pages
  • Reacting Acids and Bases Lab Report
    Reacting Acids and Bases Lab Report Introduction Every liquid, except for distilled water, has either acidic or basic traits. An acid is sour tasting, and gives a sharp stinging pain in a cut or wound, and bases taste bitter, and feel slippery. A pH scale is used to determine what traits a liquid has; acidic or basic. The scale focuses on OH- (hydroxide ions) and H+ (hydrogen ions). The scale goes from 0 to 14. 7 is distilled water, as it is directly in the middle; neither acidic or basic....
    716 Words | 3 Pages
  • Acid and Base Report Qualitative Data
    Acids and Bases Labs Report Aim: To study the characteristics of acids and bases. Experiment 1 Magnesium Ribbon with Sulphuric Acid |Observations | |Material/substance |Rate of reaction |Bubbles |Initial colour |Final colour |Other Observations | |H2SO4 |N/A |N/A |Colourless...
    459 Words | 4 Pages
  • Chemistry Lab properties of acids and bases
     4/2/14 Period: 1st Chemistry Sour Acids and Bitter Bases Purpose: The purpose of this lab was to observe the different reactions formed between various acids and bases with the aid of indicators. Equipment: 1. Safety goggles. 2. Droppers. 3. Red Litmus paper. 4. Blue Litmus paper. 5. pH paper. 6. Well plate. 7. Micro spatula. Materials: 1. Zinc. 2. Magnesium. 3. Iron. 4. Copper. 5. HCL. 6. HC₂H₃O₂. 7. NaOH. 8. Phenolphthalein. Procedure: Part A: 1. Add five...
    889 Words | 5 Pages
  • Acid-Base Extraction: Benzoic Acid Two-Base Extraction
    TWO-BASE EXTRACTION OF BENZOIC ACID, 2-NAPHTHOL, AND NAPHTHALENE FROM UNKNOWN SAMPLE # 131 Douglas G. Balmer (T.A. Mike Hall) Dr. Dailey Submitted 11 July 2007 Introduction: The purpose of this experiment was to separate a sample of benzoic acid, 2- naphthol, and naphthalene of unknown proportions using a two-base extraction method. The three components of the mixture will react differently to sodium bicarbonate and sodium hydroxide because each of the bases’ conjugate...
    1,889 Words | 18 Pages
  • Studying the pH of Strong Acid, Weak Acid, Salt, and Buffer Solutions
    Studying the pH of Strong Acid, Weak Acid, Salt, and Buffer Solutions The purpose of the current experiment was to determine the pH of various hydrochloric acid and acetic acid solutions, to determine the pH of various salt solutions, to prepare a buffer solution, and determine the effects of adding a strong acid and strong base to the buffer solution versus adding a strong acid and strong base to water. The measured pHs for the hydrochloric acid solutions were 1.6, 2.2, 2.9, and 3.8. The...
    1,669 Words | 6 Pages
  • Chemistry: Sulfuric Acid and Marking Scheme
    Set 4 ACID AND BASES PAPER 2 : STRUCTURE Marking Scheme: Acid – Bases & Salts 2010 No. Answer 1(a) Neutralisation (b) 2KOH + H2SO4  K2SO4 + 2H2O Correct formulae of reactants and products Balanced equation (c) i. H+ , OH- , K+ and SO42ii. K+ and SO42(d) 5 cm3 (e) Mol H2SO4 = 0.005 mol 1 mol H2SO4 --> 2 mol KOH 0.005 mol H2SO4  0.01 mol KOH Molarity of KOH = 0.4 mol dm-3 // MaVa = 1 MbVb 2 Mb = 2 x 1 x 1 000 25 = 0.4 mol dm-3 (f) 10 cm3 HNO3 is monoprotic acid // H2SO4 is diprotic acid...
    2,946 Words | 14 Pages
  • Which Antacid Neutralizes Acid the Best?
    WHICH ANTACID WILL NEUTRALIZE STOMACH ACID THE BEST AND IS MOST COST- EFFECTIVE? Description This experiment was conducted to find out how effective different types and brands of antacids are at neutralizing acid. I also looked at the cost of each product in order to determine if my hypothesis would be correct. The experiment was done using 4 brands of antacid, Pepto-Bismol, Gaviscon, Tums and Tagamet. Hypothesis All the antacids will neutralize different amounts of acid but the...
    612 Words | 3 Pages
  • Acid-Base Titration Lab Report
    Acid-Base Titration BQ: 1) what is the strength of the antacid? 2) How accurate/precise is this strength? Safety consideration: Goggles and gloves must be worn at all time during experiment to prevent any contact with eyes and skin. If spilled any chemical in gloves throw it away and wear a new one immediately. Handle all chemical carefully. Handle all carefully to prevent from breaking. Procedure and Tests: Week 1 1) 600ml of a 0.5M NaOH solution will be needed, 3MNaOH is...
    794 Words | 3 Pages
  • Polyaspartic Acid in Oyster Shells as Absorbent
    Abstract Our study is entitled “The Feasibility of Aspartic Acid found in Oyster Shells as an additive ingredient in improving the absorbency of commercialized sanitary napkins.” The objective of the study was to extract a protein from the oyster shells to produce aspartic acid which can replace the manufactured polymer found in commercialized sanitary napkins. The significance of our study is that the product is an alternative in producing polymers. It is also environmental friendly;...
    257 Words | 1 Page
  • Pool Chemistry: Acid-Base Eqilibrium
    Pool Chemistry: Acid-Base Equilibrium The domestic home swimming pool can harbour many different microbes of bacteria’s and algae. Checking the pH and chlorine levels daily will help prevent any of these occurring. Algae can clog filters or pollute the water and bacteria can become a serious health risks to the swimmers. pH is the figure expressing the acidity or alkalinity of a solution on a scale of 0 to 14, with 7 a neutral zone. Each figure above 7 is more basic (alkaline) and below...
    1,644 Words | 7 Pages
  • Acid-Base Extraction with Separatory Funnel
    A. Title – Acid-Base Extraction with Separatory Funnel B. Introduction – The main objective of the experiment was the extract an acid, a base, and a neutral compound from a 2:1:1 compound of benzoic acid, p-nitroaniline, and azobenzene. In theory, an extraction technique based on phase distribution should allow two immiscible solvents to separate with a portion of the solute distributed into each. Using a separatory funnel, acids were extracted with bases (NaOH), and bases were extracted...
    732 Words | 4 Pages
  • Preparation and standardisation of base and acid solution
    INTRODUCTION In this experiment will introduce us to the analytical method of volumetric titration. Volumetric titration is one of the wet analytical methods. This experiment is based on the ability to prepare a standard solution, that is, a solution where the concentration is accurately known. The concentration of 1M NaOH solution is not known accurately, it is necessary to measure the concentration of a diluted solution by using it to titrate a known amount of acid. In this experiment, the...
    1,216 Words | 7 Pages
  • Introduction about acid base titration
    Introduction Background Information To begin a discussion about acid-base titrations, we must first recall that there are several definitions of acids and bases. For the purpose of this exercise, we will consider the Arrhenius definition of acids and bases, in which an acid is a proton (H+) donor and a base produces hydroxide (OH-) in solution. When an acid reacts with a base, the products of this reaction are water and a salt. Note that salt here does not only mean table salt (NaCl), but can...
    493 Words | 2 Pages
  • Acid Attack: Should the Punishment Be More Stringent?
    Acid Attack: Should the punishment be more stringent? Ways to maim or murder our women- It never gets old. Sometimes they are killed in the womb itself, and if they are lucky enough to survive they are doused in kerosene and set alight, dragged and, raped, or Acid is thrown on their faces –perhaps the worst form of torture. Acid attack results in a living death, a lifetime in hell on earth. The victim becomes pariah, outcast from the society, employment and sometimes from their families too....
    533 Words | 2 Pages
  • Lab 5 Acid Base Chemistry 2
    LAB REPORT 5 – ACID/BASE CHEMISTRY No credit will be given for this lab report if the Data section is not completely filled out and if the required photographs are not received. At least one photograph must show the student’s face. NOTE: This experiment is rather lengthy. Plan accordingly. OBJECTIVES 1. Define strong electrolyte, weak electrolyte, nonelectrolyte, acid, base, salt, strong acid, weak acid, strong base, weak base, and neutralization reaction. 2. Compare and contrast the...
    1,240 Words | 17 Pages
  • compare the IUPAC nomenclature rules for naming acids
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