Question

what are the two things that need to be done to a spectrometer prior to properly using it * 1 point set the correct absorbance and prime the light emitter set the correct wavelength and set the correct absorbance zero to a blank sample and set the correct absorbance set the correct wavelength and zero to a blank sample

Explanation:

Before using a spectrometer, setting the correct wavelength is crucial as different substances absorb or emit light at specific wavelengths. Zero - ing to a blank sample helps to account for any background absorbance or interference, ensuring accurate measurements of the sample of interest. Absorbance is a measured value and not typically set directly before use, and priming the light - emitter is not a standard pre - use procedure for spectrometers.

Answer:

D. Set the correct wavelength and zero to a blank sample