Which property is used in volumetric methods of analysis?
Correct answer: D. Volume
- A. Density
- B. Viscosity
- C. Surface tension
- D. Volume
Explanation
Volumetric analysis, such as titration, relies on the precise measurement of the volume of a solution of known concentration that is required to react completely with the analyte. Therefore, volume is the key physical property measured.
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Analytical chemistry identifies and measures substances using separation and instrumental methods. Chromatography is studied through stationary and mobile phases, retention and Rf values, while spectroscopy connects absorption of electromagnetic radiation with molecular structure and supports qualitative and quantitative analysis through techniques such as UV-visible and infrared spectroscopy.
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