Acid/Base

Laura Patterson

Acids

Characteristics

An acid is defined as a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red; typically, a corrosive or sour-tasting liquid of this kind.

  • Taste Sour
  • Turns blue litmus paper red
  • Reacts with bases to form salts and water
  • produces hydrogen ions

3 Examples

  • H2S
- hydrosulfric acid
  • H2CO4
- percarbonic acid

  • H3PO5
- perphosphoric acid

pH

The pH of acids range between 1 and 6. 1 being the strongest acid and 6 being the weakest.

Strong & Weak

Acids with the pH of 1 are known as the strongest acid. Acids with the pH of 6 are known as the weakest acid.

Examples of Strong


  • HCl
  • HI
  • HBr
Examples of Weak

  • carbonic acid
  • acetic acid

Bases

Characteristics

  • Taste Bitter
  • Feel slippery or soapy
  • React with oils and grease
  • Turns red litmus paper blue
  • React with acids to form salts and water
  • Produce hydroxide

3 Examples

  • CaCO3
- calcium carbonate (found in Tums)

  • C3H6O
- Acetone

  • LiOH
- Lithium Hydroxide

Strong & Weak

Bases with the pH of 8 are known as the weakest bases. Bases with the pH of 14 are known as the strongest bases.

Examples of Strong

  • Potassium hydroxide
  • Barium hydroxide

pH

The pH of a base ranges between 8 and 14. 14 being the strongest and 8 being the weakest.

What does it mean to have a pH of 7?

pH of 7

Having a pH of 7 means that the compound is neutral and does not react with acids or bases.

Sources