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kozerog [31]
3 years ago
5

CuSO4 absorbs light strongly at a wavelength of 635 nm. Consider that you measure the initial intensity of light, Io, entering t

he solution at 635 nm, and the intensity of light passing through the solution, I, at 635 nm. Sample 1: 0.400 M CuSO4 Sample 2: 0.200 M CuSO4 Which of the following statements is true? Group of answer choices The percent transmittance of light, %T, will be higher for Sample 1 compared to Sample 2. The percent transmittance of light, %T, will be the same for Sample 1 compared to Sample 2. The percent transmittance of light, %T, will be lower for Sample 1 compared to Sample 2.
Chemistry
1 answer:
astra-53 [7]3 years ago
8 0

Answer:

The right statement is "The percent transmittance of light, %T, will be higher for Sample 1 compared to Sample 2."

Explanation:

The Beer-Lambert Law states that the absorbance is directly proportional to the concentration of the substance.

Absorbance = εLc

ε: molar absorptivity coeficient

L: optical path length

c: molar concentration

Therefore, if ε and L are the same, the higher the concentration, the higher the absorbance and the lower the transmitance.

Since sample 1 has a higher concentration of CuSO₄ than sample 2, sample 1 has a higher absorbance and lower percent transmittance.

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