What is the Difference Between Acetic Acid and Acetate?

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The main difference between acetic acid and acetate lies in their charge and structure. Acetic acid is a neutral organic compound, while acetate is an anion with a net negative electric charge. Here are some key differences between the two:

  • Charge: Acetic acid has no net charge, whereas acetate has a negative charge.
  • Structure: Acetic acid is an organic molecule, while acetate is an organic anion.
  • Formation: Acetate is formed from the removal of a hydrogen atom from acetic acid.
  • pH: Acetic acid molecules are stable at low pH values (around pH 5), while acetate ions are stable at high pH values (higher than pH 5.5).

Acetic acid is a weak acid and is responsible for the characteristic taste and smell of vinegar. Acetate, on the other hand, is a salt formed by the combination of acetic acid with a base, such as sodium acetate. In aqueous solutions, acetate ions can act as a base, deprotonating water and increasing the solution's pH.

Comparative Table: Acetic Acid vs Acetate

The key difference between acetic acid and acetate is that acetic acid is a neutral compound, while acetate is an anion with a net negative electric charge. Here is a comparison table highlighting the differences between acetic acid and acetate:

Property Acetic Acid Acetate
Chemical Formula CH3COOH C2H3O2-(aq)
Molar Mass 60 g/mol 59 g/mol
Electrical Charge None Negative
Category Organic Molecule Organic Anion
pH Stability Stable at low pH values (around pH 5) Stable at high pH values

Acetic acid is an organic compound that plays a role in the manufacture of vinegar, while acetate is an anion formed from the removal of a hydrogen atom from acetic acid. At high pH values, acetic acid exists as acetate anion, releasing a proton spontaneously.