Electrochemical and Classical Methods in Chemical Analysis
Tap or click on cards to flip them and reveal the answers. You can use arrow keys as well.
Loading folders...
1/15 cards
What is the principle behind potentiometry?
Click to flip
Potentiometry measures the voltage of an electrochemical cell to determine the concentration of an analyte in a solution.
Click to flip
How does conductometry differ from other electrochemical methods?
Click to flip
Conductometry measures the electrical conductivity of a solution, which changes with the concentration of ions, without the need for chemical reactions.
Click to flip
What is the purpose of coulometry in chemical analysis?
Click to flip
Coulometry determines the quantity of substance by measuring the total electric charge passed during a complete electrolysis reaction.
Click to flip
What is a common application of voltammetry?
Click to flip
Voltammetry is commonly used to study redox properties of molecules, determining their oxidation and reduction potentials or current-voltage relationship.
Click to flip
What role do reference electrodes play in electrochemical analysis?
Click to flip
Reference electrodes provide a stable and known potential against which other electrode potentials can be measured, crucial for reproducibility and accuracy.
Click to flip
How does titration determine concentration?
Click to flip
Titration involves adding a reagent to a solution until a reaction is complete, indicated by a color change or pH shift, thus determining the analyte's concentration.
Click to flip
What is the principle of amperometry?
Click to flip
Amperometry measures the current flow in an electrochemical cell at a fixed potential to analyze the concentration of electroactive species.
Click to flip
Why is gravimetric analysis considered precise?
Click to flip
Gravimetric analysis involves measuring mass to quantify an analyte, minimizing errors from measurement uncertainties.
Click to flip
What is the function of redox indicators in titrations?
Click to flip
Redox indicators undergo a color change when the oxidation state alters, helping identify the titration endpoint in redox reactions.
Click to flip
How does Karl Fischer titration work?
Click to flip
Karl Fischer titration measures water content in a sample by reacting water with iodine and sulfur dioxide in the presence of an alcohol and base.
Click to flip
What advantage does polarography offer in chemical analysis?
Click to flip
Polarography provides detailed information about reversible redox processes and allows analysis of trace amounts through dropping mercury electrodes.
Click to flip
What is the role of an ion-selective electrode?
Click to flip
An ion-selective electrode measures specific ion concentrations, selectively responding to particular ion activities, crucial for precise ion quantification.
Click to flip
How does calorimetry aid in chemical analysis?
Click to flip
Calorimetry measures the heat of reaction to determine thermodynamic properties and reaction enthalpy, providing insights into reaction energetics.
Click to flip
What is the significance of endpoint detection in titrations?
Click to flip
Endpoint detection is crucial to determine when reactions between titrant and analyte are complete, affecting the accuracy of concentration calculations.
Click to flip
What is the difference between potentiostatic and galvanostatic control in electrochemical experiments?
Click to flip
Potentiostatic control maintains a constant potential, while galvanostatic control maintains constant current during electrochemical investigations.
Click to flip
Need More Study Materials?
Go back to the chat to generate additional resources.