The platinum black provides a very high surface area that promotes the speed of reaction at the electrode and thereby virtually eliminates overpotential at the standard hydrogen electrode. An overpotential would lead to misleading values of potential of other electrodes compared with a standard hydrogen electrode that manifested overpotential.
The platinum electrode is used in coductometry.
Platinum is commonly used as an inactive electrode in electrochemical cells due to its inert nature and resistance to corrosion during the electrochemical reactions.
Pencil "lead" is actually a mixture of graphite and clay, and is not an ideal choice for an electrode due to its impurities and inconsistent conductivity. It is better to use pure graphite or metal electrodes for more accurate and reliable results in electrochemical experiments.
Platinum is a chemical element.
Platinum electrode is used as the indicator electrode in potentiometry titration to measure the potential difference between the indicator electrode and the reference electrode. It provides a stable and reproducible potential during the titration process, allowing for accurate determination of the equivalence point. Platinum electrodes are inert and do not participate in the redox reactions happening during the titration, making them suitable for a wide range of titrations.
Platinum
The platinum black provides a very high surface area that promotes the speed of reaction at the electrode and thereby virtually eliminates overpotential at the standard hydrogen electrode. An overpotential would lead to misleading values of potential of other electrodes compared with a standard hydrogen electrode that manifested overpotential.
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A platinum wire dipped into a solution of a mineral can be used in various analytical techniques such as flame tests or voltammetry to detect and quantify the presence of specific elements or ions in the solution. The platinum wire acts as an electrode to facilitate the chemical reaction between the mineral solution and the analytical technique being used.
the distance from electrode and wire.
Electrode
An electrode
pH meters typically use glass electrodes to measure the pH of a solution. These electrodes are sensitive to changes in hydrogen ion concentration and provide accurate pH readings. Additionally, reference electrodes are used in combination with the glass electrode to ensure reliable and consistent measurements.
The platinum electrode is used in coductometry.
Platinum is commonly used as an inactive electrode in electrochemical cells due to its inert nature and resistance to corrosion during the electrochemical reactions.
Pencil "lead" is actually a mixture of graphite and clay, and is not an ideal choice for an electrode due to its impurities and inconsistent conductivity. It is better to use pure graphite or metal electrodes for more accurate and reliable results in electrochemical experiments.