AP Chemistry Flashcards: Spectroscopy And The Electromagnetic Spectrum

What this deck covers

This deck focuses on Spectroscopy And The Electromagnetic Spectrum, giving you a quick way to review the definitions, rules, and examples that matter most for AP Chemistry.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Flashcard 1: What is the formula for the speed of light?

Answer: $c = \lambda \nu$. Speed of light equals wavelength times frequency.

Flashcard 2: What does FTIR stand for in spectroscopy?

Answer: Fourier Transform Infrared. Advanced infrared technique using mathematical transformation methods.

Flashcard 3: State the relationship between energy and frequency.

Answer: Directly proportional. Higher frequency means higher photon energy.

Flashcard 4: Identify the term for the smallest discrete quantity of energy.

Answer: Quantum. Fundamental unit of energy in quantum mechanics.

Flashcard 5: What is the range of wavelengths for infrared light?

Answer: 700 nm to 1 mm. Electromagnetic radiation longer than visible light wavelengths.

Flashcard 6: Which spectroscopy technique is used to measure atomic emission?

Answer: Atomic emission spectroscopy. Technique that measures light emitted by excited atoms.

Flashcard 7: Identify the longest wavelength in the electromagnetic spectrum.

Answer: Radio waves. Lowest frequency electromagnetic radiation in the spectrum.

Flashcard 8: Choose the correct description for a blackbody in physics.

Answer: Perfect emitter and absorber of radiation. Theoretical object that absorbs and emits all radiation perfectly.

Flashcard 9: What is the main purpose of a monochromator in spectroscopy?

Answer: Selects specific wavelength of light. Device that isolates narrow wavelength bands for analysis.

Flashcard 10: Identify the main use of NMR spectroscopy.

Answer: Determining molecular structure. NMR reveals atomic connectivity and molecular arrangements.

Flashcard 11: What does the term 'absorbance' refer to in spectroscopy?

Answer: Measure of light absorbed by a sample. Quantifies how much light a substance absorbs at specific wavelengths.

Flashcard 12: What is the speed of light in a vacuum?

Answer: $3.00 \times 10^8$ m/s. Fundamental physical constant for electromagnetic radiation in vacuum.

Flashcard 13: What does UV-Vis spectroscopy measure?

Answer: Absorbance of UV and visible light. Measures how much ultraviolet and visible light is absorbed.

Flashcard 14: Choose the correct formula for frequency.

Answer: $\nu = \frac{c}{\lambda}$. Frequency equals speed of light divided by wavelength.

Flashcard 15: What is the formula for the speed of light?

Answer: $c = \lambda \nu$. Speed of light equals wavelength times frequency.

Flashcard 16: Identify the type of spectroscopy used for molecular vibrations.

Answer: Infrared (IR) spectroscopy. Uses infrared radiation to detect molecular bond vibrations.

Flashcard 17: What type of spectrum is produced by white light passing through a prism?

Answer: Continuous spectrum. White light separates into all visible wavelengths without gaps.

Flashcard 18: Identify the longest wavelength in the electromagnetic spectrum.

Answer: Radio waves. Lowest frequency electromagnetic radiation in the spectrum.

Flashcard 19: Choose the correct description for a blackbody in physics.

Answer: Perfect emitter and absorber of radiation. Theoretical object that absorbs and emits all radiation perfectly.

Flashcard 20: State the relationship between energy and frequency.

Answer: Directly proportional. Higher frequency means higher photon energy.

Flashcard 21: What type of electromagnetic radiation is used in X-ray crystallography?

Answer: X-rays. High-energy radiation used to determine crystal structures.

Flashcard 22: Identify the term for the smallest discrete quantity of energy.

Answer: Quantum. Fundamental unit of energy in quantum mechanics.

Flashcard 23: What is the relationship between frequency and wavelength?

Answer: Inversely proportional. As one increases, the other decreases proportionally.

Flashcard 24: What does the term 'absorbance' refer to in spectroscopy?

Answer: Measure of light absorbed by a sample. Quantifies how much light a substance absorbs at specific wavelengths.

Flashcard 25: What is the range of wavelengths for infrared light?

Answer: 700 nm to 1 mm. Electromagnetic radiation longer than visible light wavelengths.

Flashcard 26: Which spectroscopy technique is used to measure atomic emission?

Answer: Atomic emission spectroscopy. Technique that measures light emitted by excited atoms.

Flashcard 27: What is the formula for the speed of light?

Answer: $c = \lambda \nu$. Speed of light equals wavelength times frequency.

Flashcard 28: Choose the correct formula for frequency.

Answer: $\nu = \frac{c}{\lambda}$. Frequency equals speed of light divided by wavelength.

Flashcard 29: What is the range of wavelengths in the visible spectrum?

Answer: 400 to 700 nm. Range of electromagnetic radiation detectable by human eyes.

Flashcard 30: What type of spectrum is produced by white light passing through a prism?

Answer: Continuous spectrum. White light separates into all visible wavelengths without gaps.