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

Distinguish between different types of standards (ideal, normal, and attainable) and their purposes.

Understand the role of standard cost systems in job order and process costing.

Understand factors contributing to variances and their interpretations.

Develop and analyze direct labor rates and hours for budgetary control and performance measurement.

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