BACHELOR OF SCIENCE (HONS) Lecture Notes - Lecture 1: Litmus, Sulfuric Acid, Acid Strength
23 May 2022
School
Department
Professor
Document Summary
Acids are de ned as the one which produces hydrogen ions in water. This is used as a con rmation test for the presence of acid. When acids react with metals, gases are evolved. Reactions with acids: reaction of acid with metal. Acid + metal salt + hydrogen gas. Mg + h2 so4 h2 + mg so4: reaction of acid with carbonates. Na2 co3 (s) + 2 hcl (aq) 2nacl (aq) + h2o(l) + co2(g: reaction of acid with bicarbonates. Nahco3 (s) + hcl (aq) nacl(aq) + h2o (l) + co2 (g) Both acids and base react with water. Both acids and bases act as electrolytes, so are good conductors of electricity. Both of them change the colour of the litmus paper. Acids are classified as organic acids and mineral acids. Acids which are derived from plants and animals, they are known as organic acids. They are dangerous to be used, so need more precautions.
