Base Essays

  • Hydrochloric Acid Base Titration

    731 Words  | 3 Pages

    it is titrated with sodium hydroxide (NaOH) which serves as a titrant since its concentration is known. This is as an acid-base titration and in it the hydrogen ions from the HCl react with hydroxide ions from the NaOH to produce

  • Acid Base Titration Essay

    1146 Words  | 5 Pages

    Title: Acid base titration –Define the end point by using various indicators Aim: To define the end point of an acid-base titration effect by using various indicators. Introduction: The titration is a scientific method applied to define the specific amount of a substance by the substance with a known amount of another substance. The completed reaction of a titration is normally shown by the colour change or an electrical measurement. The elements needed to be applied in a titration as a standard

  • Equivalence Point In An Acid-Base Titration

    845 Words  | 4 Pages

    Discussion: End point in this acid-base titration experiment refers to the point where the chemical reaction has reached its conclusion and no additional titrant should be added. The end point of this experiment can be obtained when the indicator used changes colour. For example colourless to light pink when phenolphthalein is used and red to orange and subsequently yellow when methyl orange is used. Equivalence point, also known as stoichiometric point in an acid-base titration refers to the point where

  • Acid Base Titration Lab Report

    746 Words  | 3 Pages

    Introduction: The acid-base titration experiment is the use of a titrant, an analyte, and an indicator. Titration is the slow addition of one solution of a known concentration (called a titrant) to a known volume of another solution of unknown concentration until the reaction reaches neutralization, which is often indicated by a color change.1 The titrate is what is later released into a beaker or flask that is filled with the analyte and indicator. The color change happens because of the indicator

  • Acid-Base Titration Lab Report

    956 Words  | 4 Pages

    Determination of pKa and pKb Using Acid-Base Titrations Lab Report Objectives: This experiment aims at determining the concentration of acid-base equilibrium constants for acetic acid and aqueous ammonia using titration curves. Introduction: The main objective in the volumetric titration of an acid with a base is the determination of the equivalence point. The equivalence point is a point where the acid has been fully neutralized by the base. One can determine the completeness of the reaction

  • Lab Report On Acid Base Titration

    1346 Words  | 6 Pages

    Practical I: Acid-base equilibrium & pH of solutions Aims/Objectives: 1. To determine the pH range where the indicator changes colour. 2. To identify the suitable indicators for different titrations. 3. To identify the unknown acid. 4. To determine acid dissociation constant, Ka and pKa for the unknown acid. Introduction: Titration process is used in an acid-base experiment in order to determine the concentrations of solutions of acids and bases. Through the titration process, we are able to identify

  • Brønsted-Lowry Acid Base Theory

    861 Words  | 4 Pages

    principles, Brønsted-Lowry acid base theory demonstrates that an acid donates a hydrogen ions, while a base accepts hydrogen ions. Strong acids have the an easier ability to donate hydrogen ions compared to weak acids.The goal for Experiment 8 Acid-Base Equilibria: Determination of Acid Ionization Constants is to recognize how different amounts of quantitative values can alter the pH in a solution. This procedure was carried out by mixinging specific acid or base solutions together and comparing

  • Acid Base Titration Lab Report Conclusion

    1503 Words  | 7 Pages

    NaOH solution. Objective: • To carry out acid-base titration. • To determine the end point with the use of indicators such as phenolphthalein. • To find out the concentration of base when the concentration of acid is known. • To do calculations related to titration. Theory and Background: Titration is a laboratory analytical method to determine the concentration of a solution or a reactant when the concentration of another solution is known. Acid-base titration is a method often used to determine

  • Buffer Lab Report

    1344 Words  | 6 Pages

    Introduction Buffer is a solution that resists a change in pH when bases or acid are added. Solutions that are acidic contain high concentrations of hydrogen ions (H+) and have pH values less than seven. Buffer usually consist of a weak acid, and its conjugate base or a weak base and its conjugate acid. The function of buffer is to resist the changes in hydrogen ion concentration as a result of internal and environmental factor. This buffer experiment is important so that we relies the important

  • Determination Of Ethanoic Acid In Vinegar Lab Report

    1489 Words  | 6 Pages

    ache, vomiting. Venigar contains a small percentage of ethanoic acid Ch3COOH. This practical aims to find out the concentration of the of the vinegar against a standard solution of sodium hydroxide soloution of concentration 0.1 mol dm3 through acid-base titration, the label on the bottle says 6%. The equation of the reaction between sodium hydroxide and ethanoic acid is as follows: CH3COOH + NaOH → CH3COONa + H2O We can measure the end point of titration process and we can

  • Perkin Reaction Lab Report

    890 Words  | 4 Pages

    It is type of condensation reaction, which involve the condensation of acidic anhydride and aldehyde in the presence of weak base (i.e. Sodium and potassium salt of the acid or trimethylamine) to give unsaturated carboxylic acid.(Equation-1)[1].In 1968 Perkin described the very first example of such type condensation reaction, involve the synthesis of coumarin by condensing the sodium or potassium salt of salicylaldehyde with acetic anhydride (Equation-2)[2].Generally such type of reaction is only

  • Neutralization Reaction Paper

    1187 Words  | 5 Pages

    Arrhenius as substances that ionize in water to produce H+ (hydronium) ions, and bases as substances that ionize in water to produce OH- (hydroxide) ions (Chang, 2010). Arrhenius’s definition is known to be limiting thus, a broader definition was made by Johannes Bronsted. It is said that a Bronsted-Lowry acids are those that donate proton while a Bronsted –Lowry bases are those that accept proton (Bruice, 2005). When acids and bases react, a neutralization reaction occurs resulting to the formation of salts

  • Buffer Experiment

    1899 Words  | 8 Pages

    ABSTRACT This experiment is about buffer and pH changes. Buffer is an aqueous solution consisting of a mixture of either a weak acid and its conjugate base or weak base with its conjugated acid. It means that it has the property that the pH of the solution changes very little when a small amount of acid or base is added to it. Buffer solutions are used as a means of keeping pH at a nearly constant value in a wide variety of chemical applications. The experiment is carried out to helps us understand

  • Weak Acid Lab

    647 Words  | 3 Pages

    water before titrating with the strong base NaOH. Titration is a technique in which a reagent of known concentration is slowly added to an unknown solution in order to calculate the concentration of the unknown. When a weak acid is titrated with enough of a strong base, the weak acid is converted into its

  • Oxalic Acid Titration

    703 Words  | 3 Pages

    acid Nbase x Vbase no of mole of base The concentration of oxalic acid used was 0.10 N and volume was 10.00mL

  • Water Equilibrium Report

    1053 Words  | 5 Pages

    Effect of Acids and Bases on Water Equilibrium: If an acid (H+) is added to the water, the equilibrium shifts to the left and the OH- ion concentration decreases. Water Equilibrium: H2O ↔ H+ + OH- If base (OH-) is added to water, the equilibrium shifts to left and the H+ concentration decreases. Water Equilibrium Principle: The multiplication product (addition of exponents) of H+ and OH- ion concentration must always be equal to 10-14. BOTH H+ and OH- ions are ALWAYS PRESENT in any solution. A solution

  • Unknown Solid Acid

    1800 Words  | 8 Pages

    Purpose: The purpose of this lab is to titrate an unknown solid acid (KH2PO4) with a standardized sodium hydroxide solution. After recording and plotting the data, the acid’s equivalence point will be recorded once the color changes. Using the equivalence point, the halfway point will be calculated, which is used to determine the acid’s equilibrium constant. The acid’s calculated equilibrium constant will be compared with the acid’s established pKa value. Eventually using the NaOH and the acid’s

  • Henderson Hasselbalch Titration Experiment

    1631 Words  | 7 Pages

    meter and by the Henderson Hasselbalch equation, which after comparison is made between the values. pH meter was used to measure the pH of the solutions and also the titration curve was established from the recordings of the pH and of volume of the base which was the NaOH. Factors that affect the buffer capacity were then evaluated and explained why they affect the buffer capacity. Calculations were done in results as determining the volumes and pH of the solution using the Henderson Hasselbalch equation

  • Chemical Equation For The Presence Of Sodium Bicarbonate

    795 Words  | 4 Pages

    Exercise 1 1. Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate). Using your results from Data Table 1 as a guide, how would you test this material for the presence of sodium bicarbonate? B BoldI ItalicsU Underline Bulleted list Numbered list Superscript Subscript33 Words If I had a household product labeled sodium bicarbonate, I would add an acidic substance and expect bubble to be created. As we know acid reacts with bubbles when combined with sodium

  • Tris Succinate Puffer

    897 Words  | 4 Pages

    In practical 4, a titration curve is set up to determine the amount of the acid or base that needs to be added to the stock solution prepared in practical 2, to reach the wanted pH. A titration curve is used often to record titrations. They are represented visually by graphs, called titration curves, which generally contain the volume