Question
In: Chemistry
A. A spectrophotometer is known to have 0.800% stray light reach the detector for all analyses...
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
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
A. A spectrophotometer is known to have 0.800% stray light reach the detector for all analyses...
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...
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Problem Page The lifetime of a certain brand of electric light bulb is known to have...
Problem Page
The lifetime of a certain brand of electric light bulb is known
to have a standard deviation of
48
hours. Suppose that a random sample of
50
bulbs of this brand has a mean lifetime of
480
hours. Find a
99%
confidence interval for the true mean lifetime of all light
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