HN Midterm Review #4

Front

What is the percent yield formula?

Back

Percent Yield = (Actual Yield / Theoretical Yield) x 100

Front

How do you calculate the theoretical yield of CO2 from the reaction 2Fe2O3 + C → Fe + 3CO2?

Back

1. Determine moles of C used. 2. Use stoichiometry to find moles of CO2 produced. 3. Convert moles of CO2 to grams.

Front

Which color of visible light has the longest wavelength?

Back

Red

Front

What is the significance of electron spin in quantum mechanics?

Back

Electron spin is a fundamental property that describes the intrinsic angular momentum of electrons, leading to the Pauli exclusion principle.

Front

What are the four sublevels in energy level 3?

Back

3s, 3p, 3d, 3f.

Front

What is the definition of a theoretical yield?

Back

Theoretical yield is the maximum amount of product that can be formed from a given amount of reactants, based on stoichiometric calculations.

Front

What is the definition of actual yield?

Back

Actual yield is the amount of product actually obtained from a chemical reaction.

Front

What is the relationship between wavelength and energy in the electromagnetic spectrum?

Back

Energy is inversely proportional to wavelength; shorter wavelengths have higher energy.

Front

What is the electron configuration for neon?

Back

1s² 2s² 2p⁶.

Front

What is the Pauli exclusion principle?

Back

No two electrons in an atom can have the same set of four quantum numbers.