Spectroscopy Which of the following relationships between absorbance and %transmittance is incorrect? A = log10 1 / T All are correct A = log10 100 / %T A = 2 - log10 %T A = log10 1 / T All are correct A = log10 100 / %T A = 2 - log10 %T ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Beer's Law states that absorbance is equal to P0 / P 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 None of these absorbance is equal to P0 / P 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 None of these ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following will oscillate the fastest? A small mass on a stiff spring A small mass on a weak spring A large mass on a weak spring A large mass on a stiff spring A small mass on a stiff spring A small mass on a weak spring A large mass on a weak spring A large mass on a stiff spring ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following components of a monochromator is the dispersing element? The entrance slit The collimating lens The diffraction grating None of these The entrance slit The collimating lens The diffraction grating None of these ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Why is it generally preferable to use absorbance as a measure of absorption rather than % transmittance? Because %T is dependant on the power of the incident radiation Because absorbance is proportional to the concentration of the analyte, whereas %T is not None of these Because %T cannot be measured as accurately as absorbance Because %T is dependant on the power of the incident radiation Because absorbance is proportional to the concentration of the analyte, whereas %T is not None of these Because %T cannot be measured as accurately as absorbance ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following is not an IR vibrational mode? Scissoring Stretching Rolling Rocking Scissoring Stretching Rolling Rocking ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS