If We Know the Amount of Light That Is Absorbed

question 194

Multiple Choice

If we know the amount of light that is absorbed in a solution we can calculate the concentration of the substance dissolved in water using a spectrophotometer. For a certain substance the concentration (in moles/liter) is given by the formula where is the intensity of the incident light and is the intensity of light that emerges. What is the concentration of the substance if the intensity is 45% of ?

• A) 952 mol/L
• B) -3667 mol/L
• C) 2928 mol/L
• D) 2192 mol/L
• E) 1272 mol/L

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Definitions:

Environmental Regulations

Rules and standards implemented by governments to control pollution and protect the environment.

Annual Statement

A comprehensive report detailing a company’s financial performance over the previous year, including income, expenses, and profit or loss.

Drinking Water

Water that is safe and clean for human consumption, free from contaminants and pollutants.

Toxic Chemicals

Substances that can cause harm to humans, animals, plants, or the environment.