Write down any five applications of DSC technique.

A mixture of CaCO3 and CaO is analysed using TGA method. TG curve of the sample indicates that there is a mass change from 290.6 mg to 230.8 mg between 500-900^.C. Calculate the percentage of CaCO3 in sample.

Discuss various sources of errors in TGA.

How will you determine lead and copper in carbon steels using polarographic  method?

What are the factors affecting the diffusion current? Discuss these factors in brief.

What is stripping voltammetry? Taking a suitable example discuss the anodic  stripping voltammetry.

To analyse a brass alloy, a 0.442 g sample is dissolved in acid to volume in a 500 cm³ volumetric flask. Electrolysis of a 10 cm³ sample at -0.3 V vs SCE reduces Cu²⁺ to Cu, requiring total charge of 16.11 C. Adjusting the potential of 0.6 V vs SCE and completing the electrolysis requires 0.442 C to reduce Ph²⁺ to Pb. Report the percentage of Cu and Pb in the alloy.

What are molar conductivity and limited molar conductivity? Calculate the dissociation constant of 0.02 mol dm^-3 ethanoic acid, if its molar conductivity is 11.57  10^-4 S m² mol^-1 and limited molar conductivity is 3.90 x 10^-2 S m² mol^-1 .

Write five main features of coulometric methods.

What is the cell potential of an electrochemical cell made of a cadmium electrode in a 0.1 M Cd(NO₃)₂ solution and chromium electrode in a 1 x 10 M Cr(NO₃)₃ solution.

[Given: ]

What is meant by Ion Selective electrodes? Give their applications.

What are the characteristics of a reference electrode? Describe the construction and working of a Calomel electrode.

Derive the Nernst expression for galvanic cell.

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