Question

A. A spectrophotometer is known to have 0.800% stray light reach the detector for all analyses due to poor light sealing. Determine the true absorbance, apparent absorbance, and apparent transmittance for a sample with a true transmittance of 0.0657. B. What amount of stray light produces an apparent absorbance of 1.995 with a true transmittance of 0.0100? C. In the process of performing an analysis, you determine that you need to improve the precision by limiting the error in the absorbance to 0.00007200. You attempt to achieve this by reducing the amount of stray light that reaches the detector. What is the maximum amount of stray light that can reach the detector that will limit the error in the absorbance to 0.00007200 for a true absorbance of 1.1000000? ANSWER PARTS A, B, AND C

          A. A spectrophotometer is known to have 0.800% stray light reach
the detector for all analyses due to poor light sealing. Determine
the true absorbance, apparent absorbance, and apparent
transmittance for a sample with a true transmittance of 0.0657.
B. What amount of stray light produces an apparent absorbance of
1.995 with a true transmittance of 0.0100?
C. In the process of performing an analysis, you determine that
you need to improve the precision by limiting the error in the
absorbance to 0.00007200. You attempt to achieve this by reducing
the amount of stray light that reaches the detector. What is the
maximum amount of stray light that can reach the detector that will
limit the error in the absorbance to 0.00007200 for a true
absorbance of 1.1000000?
ANSWER PARTS A, B, AND C

Added by Vanesa S.

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