In a UV-Vis spectroscopy experiment, why might a chemist choose to measure absorbance rather than percent transmittance?

• A. Absorbance is less affected by sample impurities.
• B. Absorbance is directly proportional to concentration, making it easier to analyze.
• C. Percent transmittance provides more detailed spectral information.
• D. Percent transmittance is more accurate for low concentration samples.

Answer: (B)