Spectroscopy Which of the following components of a monochromator is the dispersing element? The collimating lens The entrance slit None of these The diffraction grating The collimating lens The entrance slit None of these The diffraction grating 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 %T cannot be measured as accurately as absorbance None of these 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 Because %T cannot be measured as accurately as absorbance None of these Because absorbance is proportional to the concentration of the analyte, whereas %T is not ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Where does a carbonyl (C=0) stretch appear in an IR spectrum? 160-110 1870-1650 1740-1720 3640-3250 160-110 1870-1650 1740-1720 3640-3250 ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Beer's Law states that absorbance is proportional to the log of the concentration of the absorbing species absorbance is proportional to both the path length and concentration of the absorbing species None of these absorbance is equal to P0 / P absorbance is proportional to the log of the concentration of the absorbing species absorbance is proportional to both the path length and concentration of the absorbing species None of these absorbance is equal to P0 / P ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Molar absorbtivity is the measure of the amount of light absorbed per unit length amount of light absorbed per unit concentration None of these amount of light reflected and absorbed per unit concentration amount of light absorbed per unit length amount of light absorbed per unit concentration None of these amount of light reflected and absorbed per unit concentration ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following is not an IR vibrational mode? Rocking Stretching Scissoring Rolling Rocking Stretching Scissoring Rolling ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS