Spectroscopy Why is it generally preferable to use absorbance as a measure of absorption rather than % transmittance? None of these Because %T cannot be measured as accurately as absorbance Because absorbance is proportional to the concentration of the analyte, whereas %T is not Because %T is dependant on the power of the incident radiation None of these Because %T cannot be measured as accurately as absorbance Because absorbance is proportional to the concentration of the analyte, whereas %T is not Because %T is dependant on the power of the incident radiation ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following will oscillate the fastest? A small mass on a weak spring A small mass on a stiff spring A large mass on a stiff spring A large mass on a weak spring A small mass on a weak spring A small mass on a stiff spring A large mass on a stiff spring A large mass on a weak spring ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy In the past, IR spectra had to be aquired one wavelength at a time, which took a long time. Today quick spectra is due to the absence of broad spectrum of wavelenth the Fourier Transfer Algorithm allows us to scan all frequencies at once light is faster today that it used to be None of these absence of broad spectrum of wavelenth the Fourier Transfer Algorithm allows us to scan all frequencies at once light is faster today that it used to be None of these ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Where does a carbonyl (C=0) stretch appear in an IR spectrum? 1740-1720 3640-3250 160-110 1870-1650 1740-1720 3640-3250 160-110 1870-1650 ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following components of a monochromator is the dispersing element? The entrance slit The diffraction grating None of these The collimating lens The entrance slit The diffraction grating None of these The collimating lens ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Beer's Law states that absorbance is proportional to both the path length and concentration of the absorbing species absorbance is proportional to the log of the concentration of the absorbing species absorbance is equal to P0 / P None of these absorbance is proportional to both the path length and concentration of the absorbing species absorbance is proportional to the log of the concentration of the absorbing species absorbance is equal to P0 / P None of these ANSWER DOWNLOAD EXAMIANS APP
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