volumetric analysis

Thân thiện

A chemist performs a volumetric analysis using a burette and an Erlenmeyer flask.

Definition

1. Noun:
   • Quantitative chemical analysis by measuring volumes: A method in analytical chemistry where the concentration of a substance in a solution is determined by measuring the volume of a standard reagent solution of known concentration required to react completely with it.
   • Measurement of gas volumes: The determination of the volume of gases, or the changes in their volume, during a chemical reaction or physical process.

Usage Examples

• Noun:
  • In the laboratory, we used volumetric analysis to determine the acidity of the vinegar sample.
  • The classic titration experiment is a fundamental technique in volumetric analysis.
  • Early chemists employed volumetric analysis to study the combining volumes of gases like hydrogen and oxygen.

Advanced Usage

• Titrimetric analysis is often used synonymously with the first meaning of volumetric analysis, emphasizing the titration process.
• The principle of volumetric analysis relies on precise measurement using specialized glassware like burettes, pipettes, and volumetric flasks.

Variants and Related Words

• Titration (n): The core experimental procedure in volumetric analysis where a solution is added from a burette to another solution until the reaction is complete.
• Titrant (n): The standard solution of known concentration used in a titration.
• Analyte (n): The substance whose concentration is being determined in the analysis.

Synonyms

• For the first meaning: Titrimetry, quantitative analysis by titration.
• For the second meaning: Gas volumetry, manometric measurement.

Related Phrases and Concepts

• Endpoint / Equivalence point: The point in a titration at which the reaction is complete, often indicated by a color change.
• Standard solution: A reagent solution of precisely known concentration, essential for volumetric analysis.

Học thuật

Noun

1. quantitative analysis by the use of definite volumes of standard solutions or reagents
2. determination of the volume of gases (or changes in their volume) during combination