IR Spectrometry and Mass Spectroscopy

What is the main difference between how science is portrayed in movies and TV shows versus reality?

• Science in media is often oversimplified and faster than in reality.

• Science in media is always accurate.

• Science in media is more complex than in reality.

• Science in media never uses real scientific instruments.

What is spectroscopy primarily concerned with?

• Generating spectra from different techniques.

• Identifying the chemical formula of substances.

• Observing how electromagnetic radiation interacts with molecules.

• Measuring the mass of molecules.

Which of the following is true about spectrometry?

• It cannot be used for mixtures.

• It generates interpretable data from various techniques.

• It only uses visible light.

• It is always non-destructive.

What information does mass spectrometry provide about a molecule?

• Its molecular mass.

• Its boiling point.

• Its color.

• Its solubility.

In mass spectrometry, what is a radical cation?

• A molecule that has split into two neutral fragments.

• A molecule that has gained an electron.

• A molecule that has lost an electron and has an unpaired electron.

• A molecule with a negative charge.

What does the term 'molecular ion' refer to in mass spectrometry?

• A molecule with a negative charge.

• A molecule that has lost an electron and has an unpaired electron.

• A molecule that has split into two neutral fragments.

• A molecule that has gained an electron.

What does the base peak in a mass spectrum represent?

• The heaviest fragment.

• The smallest fragment.

• The molecular ion.

• The most stable ion with the highest relative intensity.

What is the significance of the base peak in mass spectrometry?

• It represents the molecular ion.

• It indicates the most stable ion fragment.

• It shows the smallest fragment.

• It represents the heaviest fragment.

What is the purpose of spectral libraries in mass spectrometry?

• To measure the boiling points of different molecules.

• To identify the solubility of different molecules.

• To store known spectra of different molecules for comparison.

• To store the colors of different molecules.

How can high resolution mass spectrometry help in identifying a substance?

• By identifying the solubility of the substance.

• By determining the exact mass to more decimal places.

• By measuring the boiling point of the substance.

• By providing the exact color of the substance.