Converting Between Sawhorse and Fischer Projections

What is the primary purpose of a Fischer Projection?

• To illustrate the molecular weight of a compound.

• To show the energy levels of a molecule.

• To depict a molecule in two dimensions with chiral centers.

• To represent a molecule in three dimensions.

In a Fischer Projection, what do horizontal lines represent?

• The main carbon chain.

• Substituents coming out of the page.

• The molecular weight.

• Substituents going into the page.

What is the first critical step in converting a Sawhorse to a Fischer Projection?

• Drawing the molecule in 3D.

• Rotating the molecule 180 degrees.

• Identifying the chiral centers.

• Calculating the molecular weight.

When visualizing a molecule for Fischer Projection, where should you place your 'eye'?

• To the left of the molecule.

• To the right of the molecule.

• At the very top of the molecule.

• At the bottom of the molecule.

What happens to substituents on the same side after a 180-degree rotation?

• They switch to opposite sides.

• They disappear.

• They become chiral centers.

• They remain on the same side.

In the shortcut method, what is the key understanding for placing substituents?

• Drawing the rotation process.

• Calculating the molecular weight.

• Identifying the main carbon chain.

• Understanding what changes during rotation.

What is the first step in converting a Fischer Projection back to a Sawhorse?

• Recognizing the chiral centers.

• Identifying the molecular weight.

• Drawing the substituents as they appear.

• Calculating the energy levels.

In the faster method of converting Fischer to Sawhorse, what is the initial step?

• Identifying the main carbon chain.

• Drawing the carbon on the left slightly up.

• Drawing the carbon on the right slightly up.

• Calculating the molecular weight.

What is the advantage of the faster method for converting Fischer to Sawhorse?

• It requires no understanding of the molecule.

• It saves a step by not drawing the rotation.

• It provides a detailed drawing of the molecule.

• It calculates the molecular weight.

What should you do if you don't fully understand the conversion process?

• Ignore the process and memorize the result.

• Calculate the molecular weight.

• Rewatch the video and use a model kit.

• Move on to the next topic.