3.13 Beer-Lambert Law

Multiple Choice

What does the Beer-Lambert Law relate to in terms of light absorption?

• Temperature

• Concentration

• Pressure

• Volume

Multiple Choice

Concentration is

• the amount of solute in the solvent

• the amount of solvent in the solute

• density

• particle size

Multiple Choice

What does a spectroscope measure?

• Light absorption

• Temperature

• Pressure

• Volume

Multiple Choice

What is the highest absorption peak for the permanganate ion (MnO4-) as shown in the graph?

• 480 nm

• 525 nm

• 600 nm

• 700 nm

Multiple Choice

Which of the following colors of light has the longest wavelength?

• orange

• green

• blue

• violet

Multiple Choice

Which type of spectra measures the light that a gas absorbs and produces dark lines?

• Absorption spectra

• Emission spectra

• Continuous spectra

Multiple Choice

Which has the longer wavelength...red or green light?

• red light

• green light

• not enough information to answer the question

Multiple Choice

What does the Beer-Lambert Law state about the relationship between absorbance and concentration?

• Absorbance is inversely proportional to concentration

• Absorbance is directly proportional to concentration

• Absorbance is independent of concentration

• Absorbance decreases as concentration increases

Multiple Choice

What is the concentration of the solution at an absorbance of 0.8?

• 0.001M

• 0.002M

• 0.00225M

• 0.003M

Multiple Choice

What does the Beer-Lambert Law demonstrate in spectroscopy?

• A linear relationship between concentration and absorbance

• A quadratic relationship between concentration and absorbance

• No relationship between concentration and absorbance

• An exponential relationship between concentration and absorbance