What is Coulometer? Explain briefly. Write cathodic and anodic reaction of hydrogen-nitrogen coulometer, where 0.1 M hydrazine sulphate is used as the electrolyte.
A coulometer is an electrochemical device used to measure the quantity of electricity (in coulombs) passed through an electrolyte during an electrolysis process. It is based on Faraday’s laws of electrolysis, which relate the amount ______ _______ _____ ______ ____ ____ ______ _____ _______ _____ ______ ______.
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Indium and Cadmium ions in 0.1 M HCl give peaks at potentials -0.557 V and -0.597 V by differential pulse polarographic analysis. When a standard solution containing 0.4 ppm of indium is analysed, it gave peak current (in arbitrary units) corresponding to 100.25 at -0.557 V and 43.75 at -0.597 V. A standard solution containing 0.4 ppm of Cd gave ip 29.52 at -0.557 V and 64.8 at -0.597 V. What is the concentration of indium and cadmium in a sample if the peak current is 190 at -0.557 V and 120 at -0.597 V.
Write the basic principle of Rutherford backscattering spectroscopy (RBS) also name the ions commonly used for primary beam in RBS.
Explain how thermometric titrations are different than classical titrations. Discuss their advantages.
(b) What is the principle of differential scanning calorimetry (DSC)? Draw the schematic diagram of a DSC instrument.
oxidation and oxidizing agent
Consider the following electrochemical cell $
voltammetry and polarography