Preview

Standardization Chemistry Lab Report

Better Essays
Open Document
Open Document
1663 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Standardization Chemistry Lab Report
JOMO KENYATTA UNIVERSITY
OF
AGRICULTURE AND TECHNOLOGY

DEPT: CIVIL ENGINEERING
UNIT: CHEMISTRY 1 (SCH 2109)
PRACTICAL REPORT

EXPT 2:
Standardization
and
Determination of Concentration of Hydrochloric Acid in a Given Solution

by ARAKA BRAMWEL MBOGO
EN251-0221/2010

TITLE: STANDARDIZATION and DETERMINATION OF THE CONCENTRATION OF HYDROCHLORIC ACID PRESENT IN A GIVEN SOLUTION

Aims:
To be able to standardize Sodium Hydroxide (NaOH) solution using a standard solution of Oxalic acid.
To be able to prepare standard solutions.
To determine the strength of a given solution of Hydrochloric acid (HCl)
To analyze errors that occur during standardization experiments.

Introduction:
A standard solution can be defined as a solution that contains a precisely known concentration of a substance.
Concentration refers to the abundance of a substance in its mixture or solution.
Standard solutions are used to determine the concentration of other substances with which they react in known ratios/proportions.
Standardization, therefore, refers the process in which the value of a potential standard is fixed by a measurement made with respect to a standard whose value is known; or simply the act of accurately determining the concentration of a substance by titrating it with a solution of accurately known concentration (standard solution).
Standardization, therefore, basically involves titration, especially acid-base titration.
Common reagents used for standardization of acids include:
Pure sodium carbonate
Pure borax (sodium metaborate)
Pure calcium carbonate (Iceland spar)
Common reagents used for standardization of alkalis comprise of solid crystalline acids like: Succinic acid Oxalic acid
Good standardizing reagents should have the following characteristics: They should have a high degree of purity
They should be stable and unaffected by the atmosphere, i.e they should not be efflorescent or deliquescent, for easy weighing.
They should have



References: The Essentials of Volumetric Analysis 2nd Edition by John Lambert Laboratory Manual for Chemistry by Chemical Education Material Study Practical Chemistry 3rd Edition by John Lambert Quantitative analysis and Chemical Calculations by E. N Lambert and M. J Mohammed

You May Also Find These Documents Helpful

  • Good Essays

    1. To titrate a hydrochloric acid solution of “unknown” concentration with standardized 0.5M sodium hydroxide.…

    • 1882 Words
    • 12 Pages
    Good Essays
  • Powerful Essays

    D1 Karan 4444

    • 1403 Words
    • 4 Pages

    First of all a standard solution is a solution with the accurately known concentration. The unit of concentration is mol dm–3. [4]If we didn’t have standard solutions, we would be calculating information which is wrong of the solutions used for pH, absorbance, etc. if we didn’t have standard solution we wouldn’t know the accurate concentration of a product. Standard solutions have to go through many tests to make sure that they are accurate enough before they are able to be used in the products.…

    • 1403 Words
    • 4 Pages
    Powerful Essays
  • Good Essays

    Pt1420 Unit 6 Study Guide

    • 1413 Words
    • 6 Pages

    Chemistry Lab Question Bank (2014-2015) Topic: Introduction 1. What is a standard solution? 2. What is a primary standard solution?…

    • 1413 Words
    • 6 Pages
    Good Essays
  • Good Essays

    Experiment 3 prelab

    • 345 Words
    • 2 Pages

    Dilute the original standard solution into the following concentrations in separate beakers using de-ionized water.…

    • 345 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Sci/275 Week 2 Essay

    • 538 Words
    • 3 Pages

    6 The point at which a substance becomes evenly distributed throughout the solution and the concentration gradient disappears. equilibrium…

    • 538 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Chem Lab Report

    • 1164 Words
    • 5 Pages

    .2400 grams of the unknown compound. This is done in duplicate and purple-tinted precipitates are placed in Gooch crucibles. The precipitates are suction dried using ethyl alcohol then acetone to…

    • 1164 Words
    • 5 Pages
    Powerful Essays
  • Powerful Essays

    Ionic Reaction Lab Report

    • 877 Words
    • 4 Pages

    2. Write the symbols and equation used to make a dilute solution from concentrated or stock solution.…

    • 877 Words
    • 4 Pages
    Powerful Essays
  • Good Essays

    Unknown Acid Titration

    • 1249 Words
    • 5 Pages

    A Titration is a process of the concentration of one solution being determined by its reaction with either a standard solution or a known quantity of solid dissolved in solution. It may also be used to calculate the molar mass of an unknown acid or base.…

    • 1249 Words
    • 5 Pages
    Good Essays
  • Good Essays

    Titration can be traced to the origins of volumetric analysis, which began in the late eighteenth century. Study of analytical chemistry began in France and the first burette was made by Francois Antoine Henri Descroizilles. The field began to spread to neighboring countries and eventually to the whole world. Titration can be defined as the gradual addition of one solution to another until the chemical amount of one reactant being added matches stoichiometrically the amount of another reactant in the solution initially present. Learning the right technique of Titration is essential because of its wide applications in all areas of science, it is used in laboratory medicine to determine unknown concentrations of chemicals of interest in blood and urine. Pharmacists also use titration in the development of new pharmaceuticals. Titration may also be used to determine the amount of a certain chemical in food. Often, titration is used to determine fat content, water content, and concentrations of vitamins. It is also used to tell if cheeses and wines have aged enough for distribution to supermarkets and shops. Scientists of different disciplines use titrations for a variety of different reason. [1]…

    • 735 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Science Rates of Reaction

    • 1060 Words
    • 5 Pages

    To see how the concentration of a reactant affects the rate of reaction, in this case sodium thiosulphate and acid.…

    • 1060 Words
    • 5 Pages
    Good Essays
  • Good Essays

    pH Titration

    • 824 Words
    • 4 Pages

    How will the endpoint of the titration be detected? Discuss the use of phenolphthalein as…

    • 824 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    Annotated Bibliography

    • 986 Words
    • 2 Pages

    BADRAP is a nationally recognized nonprofit organization and resource for dog lovers that provides multiple services and educates the public with those services and any news that relates to their cause. They rely on a number of resources to maintain their purpose and spread the information. Given the number of services offered, this organization would be of interest to anyone that has a love for dogs. This organization is a great one-stop-shop to learn everything you need to know about dogs and the news about them.…

    • 986 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Reaction Lab

    • 1032 Words
    • 5 Pages

    1. To determine the species present in aqueous solutions of compounds by using the solubility rules.…

    • 1032 Words
    • 5 Pages
    Good Essays
  • Powerful Essays

    Texas History Voting

    • 2541 Words
    • 11 Pages

    National Security Archive . (2008, January 2). Retrieved July 19, 2013, from National Security Achive George Washington University: http://www.gwu.edu/~nsarchiv/news/20071218/…

    • 2541 Words
    • 11 Pages
    Powerful Essays
  • Powerful Essays

    A standard is a predetermined level of excellence that serve as a guide for practice. Standards have distinguish characteristic, they are predetermined, established by an authority, and communicated to and accepted by the people affected by the standards.…

    • 2013 Words
    • 9 Pages
    Powerful Essays