College Chemistry

An in-depth exploration of the principles, theories, and applications of chemistry at the college level.

Advanced Topics

Acids, Bases, and Electrochemistry

The Power of Protons and Electrons

Acids and bases play a crucial role in chemical processes, from digestion to batteries.

  • Acids: Donate protons (\( \text{H}^+ \)); have pH less than 7.
  • Bases: Accept protons; have pH greater than 7.

The pH scale measures acidity and basicity.

Electrochemistry

This field studies chemical reactions that involve electron transfer, powering everything from flashlights to electric cars.

  • Redox reactions: One substance is oxidized (loses electrons), another is reduced (gains electrons).
  • Batteries: Convert chemical energy to electrical energy using redox reactions.

Impact in Life

  • Acids in your stomach help break down food.
  • Electrochemistry is behind the batteries in your phone.

Examples

  • Vinegar is acetic acid and gives salad dressing its tang.

  • Rechargeable lithium-ion batteries use electrochemical reactions to store energy.

In a Nutshell

Acids, bases, and electrochemistry are key for processes in living things and technology.