Spectroscopy Molar absorbtivity is the measure of the amount of light reflected and absorbed per unit concentration amount of light absorbed per unit concentration None of these amount of light absorbed per unit length amount of light reflected and absorbed per unit concentration amount of light absorbed per unit concentration None of these amount of light absorbed per unit length ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Molar absorbtivities of compounds exhibiting charge transfer absorption are none of these small large moderate none of these small large moderate ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following relationships between absorbance and %transmittance is incorrect? A = log10 1 / T A = log10 100 / %T All are correct A = 2 - log10 %T A = log10 1 / T A = log10 100 / %T All are correct A = 2 - log10 %T ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following is not an IR vibrational mode? Stretching Rolling Scissoring Rocking Stretching Rolling Scissoring Rocking ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Why is it generally preferable to use absorbance as a measure of absorption rather than % transmittance? Because absorbance is proportional to the concentration of the analyte, whereas %T is not Because %T cannot be measured as accurately as absorbance None of these 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 Because %T cannot be measured as accurately as absorbance None of these Because %T is dependant on the power of the incident radiation ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Why must the voltage supplied to a tungsten lamp be very stable? All of these Because amount of energy the lamp emits is proportional to the fourth power of the operating voltage Because if it wasn't, the lamp would bum out Because the lamp will only function at a specific voltage All of these Because amount of energy the lamp emits is proportional to the fourth power of the operating voltage Because if it wasn't, the lamp would bum out Because the lamp will only function at a specific voltage ANSWER DOWNLOAD EXAMIANS APP
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