This activity describes an inquiry-based project where students design an electrochemical sensor.
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Students explore various aspects of potentiometry when completing this activity.
Students explore potentiometric titrations when completing this activity.
Students explore coulometric, amperometric and potentiometric titrations when completing this activity. There is also an associated text that explains the answers to the questions in the worksheets.
Students will learn to:
Differentiate different types of columns (i.e., WCOT, PLOT, packed), their dimensions, applicability and diffusion factors affecting the separation
Evaluate suitability of common stationary phases for different analytes
Distinguish types of interactions between the analytes and stationary phase
Justify the selection of a stationary phase based on its interactions, stability, and bleed with the targeted analyte
Evaluate and explain the column bleed
Students explore aspects of accuracy and precision when completing this activity.
Students explore various aspects of liquid-liquid extraction including the influence of pH on solubility properties of acid, base and neutral compounds.
Students will learn to:
Evaluate the suitability of three common detectors (FID, TCD, and ECD) for different analytes
Explain the operation principle of these detectors
Differentiate these detectors in terms of selectivity and other properties (destructive, bulk, concentration/ mass depending) with regard to their suitability for different application
Students will learn: Calculate the ionic strength of a solution.
Describe the relationship between ionic strength and activity.
Quantify the impact of ionic strength on the equilibrium concentration of an analyte.
Students explore several examples of writing charge and mass balances when completing this activity.
Students explore a variety of gravimetric analysis procedures when completing this activity.
Students explore a variety of gravimetric analysis procedures when completing this activity.