Spectroscopy Which of the following components of a monochromator is the dispersing element? None of these The collimating lens The entrance slit The diffraction grating None of these The collimating lens The entrance slit The diffraction grating ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Molar absorbtivity is the measure of the amount of light absorbed per unit length None of these amount of light absorbed per unit concentration amount of light reflected and absorbed per unit concentration amount of light absorbed per unit length None of these amount of light absorbed per unit concentration amount of light reflected and absorbed per unit concentration ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Why must the voltage supplied to a tungsten lamp be very stable? Because the lamp will only function at a specific voltage Because if it wasn't, the lamp would bum out Because amount of energy the lamp emits is proportional to the fourth power of the operating voltage All of these Because the lamp will only function at a specific voltage Because if it wasn't, the lamp would bum out Because amount of energy the lamp emits is proportional to the fourth power of the operating voltage All of these ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Beer's Law states that None of these 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 absorbance is equal to P0 / P None of these 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 absorbance is equal to P0 / P ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following relationships between absorbance and %transmittance is incorrect? 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 A = log10 1 / T ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Where does a carbonyl (C=0) stretch appear in an IR spectrum? 1870-1650 1740-1720 3640-3250 160-110 1870-1650 1740-1720 3640-3250 160-110 ANSWER DOWNLOAD EXAMIANS APP
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