ochem W.2 slide flashcard

These flashcards cover key concepts in acid-base chemistry, resonance structures, and the properties of acids and bases.

What is the main objective when understanding acid/base chemistry?

To be very confident with acid/base chemistry and predict acidity using electronegativity and resonance.

What does resonance allow us to do in terms of chemical structures?

Resonance allows us to draw multiple valid structures that contribute to the overall stability of a molecule.

Which acid-base theory involves proton donors and acceptors?

Brønsted-Lowry theory.

What is an amphoteric substance?

A substance that can act as both an acid and a base, like water.

What does a low pKa indicate about an acid?

It indicates the acid is strong and readily donates protons.

Where does electronegativity come into play in acid-base chemistry?

Electronegativity helps predict bond polarity and the resulting acidic or basic behaviors of compounds.

What does the levelling effect in solvents mean?

The strongest acid that can be formed in a solvent is limited to the strength of the solvent itself.

How can you predict relative acid strength from structure?

By assessing factors like size, electronegativity, resonance, and inductive effects.

What is the role of formal charges in resonance structures?

Formal charges help determine the stability and validity of resonance structures.

What reaction occurs when a strong acid is added to water?

The strong acid dissociates to produce hydronium ions (H3O+).