Potentiometry is based on the measurement of which physical property?
Correct answer: B. Electrical potential
- A. Electrical conductance
- B. Electrical potential
- C. Thermal conductance
- D. Voltage
Explanation
Potentiometry is an electrochemical method that involves measuring the electrical potential (voltage) difference between two electrodes in an electrochemical cell. This potential is related to the concentration of specific ions in the solution.
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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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