Preview

Volumetric Titration

Good Essays
Open Document
Open Document
1774 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Volumetric Titration
NO | ANSWER | MARK | 1 :( i )( ii ) ( iii ) ( iv )2 :( i )( ii )( iii )3 )4 )5 ) ( i )( ii )( iii )( iv )6 )7 ) i )ii ) iii )8 )9 )10 )i ) ii )iii)11 ) | A reagent is highly serves as a reference material in all volumetric & mass titrimetric method.A reagent solution of accurately known concentration. * End point-point at which the reaction is observed to be complete and there is permenant colour change at the end of titration. * Equivalent point-point at which an equivalent amount of titrant is added to analyte. * Titrant-the reagent which is place in the burette & will added to analyte until end point reached. * Titre value-the amount of titrant by taking the final reading from burette after the end point reached. * it is high purity typically 100±0.5% * it is hygroscopic compound which is does not react with water or air. It means that it is stable for long term storage.2HCl + Na2C03 2NaCl + C02 + H20 Mole Na2C03 = 0.2329 g 2(22.99)+1(12.01)+3(16)g/mole = 0.2329g 105.99g/mole =2.197×10-3 moles From the equation , 1 Mole Na2C03 react 2 mole HCl So, 2.197×10-3 moles Na2C03 = 2.197×10-3x 2 1 = 4.394x10-3 mole HCl Thus,molarity HCl = n/v = 4.394x10-3 mole 42.87x10-3L = 0.1025 M. The suitable indicator is phenolphthalein. Primary standard | Secondary standard | * A reagent is highly serves as a reference material in all volumetric. * High purity about 99.99% purity. * Can be prepared and maintained in high state of purity. * Is unaltered in air during weighing (i.e. it is not hygroscopic). * Has high molecular formula so that weighing errors are negligible. * Will react with an appropriate solution stoichiometrically and practically instantaneously * It should be nontoxic * It should be readily available

You May Also Find These Documents Helpful

  • Good Essays

    Testing the actual yield versus the theoretical yield of NaCl when HCl is titrated into Na2CO3 and NaHCO3. When 0.15g of both NaHCO3 and Na2CO3 are titrated with HCl, then 0.165g of NaCl should form from the NaHCO3, and 0.104g of NaCl should form from the 0.15g of Na2CO3.…

    • 420 Words
    • 2 Pages
    Good Essays
  • Good Essays

    6.03 Titration Lab

    • 573 Words
    • 3 Pages

    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.…

    • 573 Words
    • 3 Pages
    Good Essays
  • Better Essays

    Titration is a method, which is meant to find the concentration of either an acid or a base by adding a measured amount of it to a known volume and concentration of an acid or base1. Titration starts with a beaker or Erlenmeyer flask containing a very precise volume of the known concentration solution and a small amount of indicator, which is put underneath a burette containing the solution with unknown concentration1. Small drops of the titrant are then added to the known solution and indicator until the indicator changes which means the endpoint has been reached. Single drops of the titrant can sometimes make a permanent or temporary change in the indicator2.…

    • 2337 Words
    • 10 Pages
    Better Essays
  • Good Essays

    Nt1330 Unit 7

    • 465 Words
    • 2 Pages

    1. c 2. c 3. a 4. d 5. a 6. c 7. a 8. b 9. d 10. d…

    • 465 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Blood and Edition Answer Key

    • 9679 Words
    • 39 Pages

    B 7. C 8. D 9. C 10. A 11.…

    • 9679 Words
    • 39 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Titration Analysis

    • 505 Words
    • 3 Pages

    Prediction: We predict that the amount concentration of acetic acid in a sample of vinegar is 0.83 mol/L.…

    • 505 Words
    • 3 Pages
    Satisfactory Essays
  • Powerful Essays

    Examine Texts one, two, three and four carefully and then answer the questions on page 7.…

    • 2134 Words
    • 9 Pages
    Powerful Essays
  • Powerful Essays

    Why Her

    • 655 Words
    • 3 Pages

    b 5. c 6. a 7. b 8. c 9.…

    • 655 Words
    • 3 Pages
    Powerful Essays
  • Good Essays

    A 6. C 7. B 8. C 9. B 10.…

    • 1326 Words
    • 6 Pages
    Good Essays
  • Powerful Essays

    Part B (Do not write here) 1. 2. 3. Part C (Do not write here) 1.…

    • 2060 Words
    • 9 Pages
    Powerful Essays
  • Better Essays

    How much can we know by simply reading the nutrition facts on the back of any packaged foods? Certain nutrition facts are given and in most cases the most important or common, such as the amount of sodium, amount of protein, the total fat, and the amount of calories among others. But what guarantees that these nutrition facts given are correct or accurate? It is known that not everything on the nutrition labels may be true. Little do people know that not everything on the nutrition facts is accurate which are mandated by the U.S. Food and Drug Administration (FDA). There is a law that requires that values of specific nutrients be reported in a standardized format. This act is known as the Nutrition Labeling and Education Act (NLEA) (1).…

    • 1661 Words
    • 7 Pages
    Better Essays
  • Satisfactory Essays

    english

    • 846 Words
    • 4 Pages

    Examine Texts one, two, three and four carefully and then answer the questions on page 9.…

    • 846 Words
    • 4 Pages
    Satisfactory Essays
  • Good Essays

    Human Anatomy & Physiology

    • 4167 Words
    • 17 Pages

    9) Joint 4. Answer: A Diff: 2 10) Joint 5. Answer: C Diff: 2 11) Joint 6. Answer: C Diff: 2…

    • 4167 Words
    • 17 Pages
    Good Essays
  • Good Essays

    In this lab, there was a comparison between accuracy and precision of densities measured by volume. Mass measurements are often used units in the metric system. Volume can be examined a borrowed unit. The volume measurements were made in mL. Every measurement had a level of hesitancy affiliated with it. The experiment could feel uncertain from the object used for measurement and from the accuracy of the person doing the measuring of the volume. Because of this uncertainty, the experiment must be repeated for better precision. The following results and data show the calculation of the density of three liquids: water, rubbing alcohol, and vinegar; each substance was tested three times to determine the average density observing the rules of significant…

    • 501 Words
    • 3 Pages
    Good Essays
  • Good Essays

    To help you, the solutions to several problems are already provided. Be sure to type your answers at the indented points after each enumeration to avoid the problem of automated numbering.…

    • 733 Words
    • 3 Pages
    Good Essays