If we know the amount of light that is absorbed in a solution, we can calculate the concentration of the substance dissolved in water using a spectrophotometer. For a certain substance the concentration (in moles/liter) is given by the formula
, where
is the intensity of the incident light and
is the intensity of light that emerges. What is the concentration of the substance if the intensity
is 45% of
?
A) 952 mol/L
B) -3,667 mol/L
C) 2,928 mol/L
D) 2,192 mol/L
E) 1,272 mol/L
Correct Answer:
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