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

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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:

eduard [2.7K] · Answer 1 · 2026-03-07T08:49:22+03:00

Answer:

The accurate assertion is "Sample 1 will have a higher percent transmittance of light, %T, than Sample 2."

Explanation:

The Beer-Lambert Law indicates that absorbance correlates directly with the concentration of a solution.

Absorbance = εLc

ε: molar absorptivity coefficient

L: length of the light path

c: concentration

Thus, assuming ε and L remain constant, an increase in concentration results in greater absorbance and reduced transmittance.

Given that sample 1 has a greater CuSO₄ concentration than sample 2, it subsequently exhibits higher absorbance and lower percent transmittance.