A sample is diluted by adding 20 µl to 780 ul of water. Its absorbance is then 0.950. A standard sample of the same 3.0 mM compound gives an absorbance of 0.475. the concentration (M) of the test sample is:

A sample is diluted by adding 20 µl to 780 ul of water. Its absorbance is then 0.950. A standard sample of the same 3.0 mM compound gives an absorbance of 0.475. the concentration (M) of the test sample is:

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter20: Applications Of Oxidation/reduction Titrations

Section: Chapter Questions

Problem 20.25QAP

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Concept explainers

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

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A sample is diluted by adding 20 pl to 780 ul of water. Its absorbance is then 0.950. A standard
sample of the same 3.0 mM compound gives an absorbance of 0.475. the concentration (M) of the
test sample is:

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