The dartboards below represent molecules of two different substances in separate

Question

The dartboards below represent molecules of two different substances in separate solutions. The darts thrown at the boards represent photons of light passing through the solutions. As more photons pass through a solution, the solution with the higher molar absorptivity will absorb more of the passing photons Label each of the images below according to the molar absorptivity the substance would be associated with equal to 2M Solution of A high molar absorptivity equal to 2M Solution of B low molar absorptivity cannot be determined 2 M Solution of substance A 2 M Solution of substance B

Explanation / Answer

In the given images, although the two substances have the same concentration, the surface area of B is greater than that of A. Hence, the absorption crossection of B is greater than A which imples that more photons will be absorbed by B.

Answer:

2M solution of Substance A 2M solution of Substance B

  low molar absorptivity high molar absorptivity

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