Spectroscopy Which of the following relationships between absorbance and %transmittance is incorrect? A = log10 100 / %T A = log10 1 / T All are correct A = 2 - log10 %T A = log10 100 / %T A = log10 1 / T All are correct A = 2 - log10 %T 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 A simple harmonic oscillator may absorb energy at anytime. when the amplitudes are the same. when the frequencies match exactly at no time. at anytime. when the amplitudes are the same. when the frequencies match exactly at no time. ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Where does a carbonyl (C=0) stretch appear in an IR spectrum? 3640-3250 160-110 1740-1720 1870-1650 3640-3250 160-110 1740-1720 1870-1650 ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following will oscillate the fastest? A small mass on a stiff spring A large mass on a stiff spring A small mass on a weak spring A large mass on a weak spring A small mass on a stiff spring A large mass on a stiff spring A small mass on a weak spring A large mass on a weak spring 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 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 ANSWER DOWNLOAD EXAMIANS APP
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