Explain what is done in anodic stripping voltammetry. Why is stripping the most sensitive polarographic technique?
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Explain what is done in anodic stripping voltammetry. Why is stripping the most sensitive polarographic technique?
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- Consider the situation shown in the figure below. An electric field of 300 V/m is confined to a circular area d = 10.6 cm in diameter and directed outward perpendicular to the plane of the figure. Consider that the field is increasing at a rate of 18.2 V/m . s. Ē.... "out r__ P (a) What is the direction of the magnetic field at the point P, r = 15.1 cm from the center of the circle? O upwards downwards (b) What is the magnitude of the magnetic field at the point P, r = 15.1 cm from the center of the circle? TThe infrared spectrum of 75Br19F consists of an intense line at 380. cm-1. Calculate its force constant, k, in units of N/m. (You can use the example as a sanity check.)describe in sufficient detail how the photodiode array monitors the absorbance (A) of a spectrum of wavelengths simultaneously.
- Use the Balmer's equation to Calculate wavelengths for transitions starting with states n; = 3 and 4, nf = 2 ending. What part of the electromagnetic spectrum do these wavelengths belong to? Where Rydberg's constant is R = 1.097x107 m².Calculate the energy of the E&M waves that are emitted by the green LED laser in problem #8, i,e., with wavelength λλ = 520 nm. and express the answer in electron volts (eV).Sketch a plot of the current / versus voltage V across an ideal photocell when visible light is incident on the cell. Note that the "amplitude" factor lo should be assumed to be negative.