QUANTITATIVE AND QUALITATIVE ANALYSIS

CONTENT

  1. Acid/Base Titration
  2. Redox Titrations
  3. Test for Oxidants and Reductants

 

Acid/Base Titration

Importance of Acid-base Titrations

Acid-base titrations are used for the following purposes:

  1. To standardize a solution of an acid or a base (standardization)
  2. To determine the molar mass of an acid or base.
  3. To establish the molar ratio of acid to base in a neutralization reaction.
  4. To determine the percentage purity or impurity of acid or base.
  5. To estimate the percentage of water of crystallization in an acid or base.
  6. To determine the solubility of a base.

1. Standardisation of a Solution

A solution of an acid of unknown concentration can be standardized, i.e. its concentration determined, by the use of a standard solution of a base, vice versa. A balance equation of reaction is required, in order to obtain the mole ratio.

Examples:

1. A is a solution of tetraoxosulphate {vi} acid. B is a solution containing 0.0500 mole of anhydrous Na2CO3 per dm3.

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