Estimate the thickness of the diffusion layer in a chronoamperometric experiments 10 ms, and 1 s after application of a potential pulse resulting in electro-reduction of a redox species such as Fe3+.

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sulfur belongs to group 16 because it can be found in nature whether it is in a free or combined state.

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practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.