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 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 Because %T is dependant on the power of the incident radiation ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy UV-Vis spectroscopy of organic compounds is usually concerned with which electronic transition(s)? none of these n → π* and π → π* σ → σ* n → σ* none of these n → π* and π → π* σ → σ* n → σ* ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Molar absorbtivities of compounds exhibiting charge transfer absorption are moderate none of these large small moderate none of these large small ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Which of the following will oscillate the fastest? 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 A small mass on a stiff spring ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Molar absorbtivity is the measure of the amount of light reflected and absorbed per unit concentration None of these amount of light absorbed per unit length amount of light absorbed per unit concentration amount of light reflected and absorbed per unit concentration None of these amount of light absorbed per unit length amount of light absorbed per unit concentration ANSWER DOWNLOAD EXAMIANS APP
Spectroscopy Why must the voltage supplied to a tungsten lamp be very stable? Because if it wasn't, the lamp would bum out All of these Because amount of energy the lamp emits is proportional to the fourth power of the operating voltage Because the lamp will only function at a specific voltage Because if it wasn't, the lamp would bum out All of these Because amount of energy the lamp emits is proportional to the fourth power of the operating voltage Because the lamp will only function at a specific voltage ANSWER DOWNLOAD EXAMIANS APP
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