PPT-UNIT 9 – PART 6: ACIDS & BASES

MEASUREMENT REACTIONS The sour and spicy tastes are properties of acidic substances The bitter taste is a property of basic substances ACIDS amp BASES INTRODUCTION Your own body produces acids and strong bases. Chemistry . Acids and Bases. Properties and pH. Chemical Warfare!. What is an Acid?. 3 Major Definitions: Arrhenius, Bronsted-Lowry, and Lewis.. Arrhenius and Bronsted-Lowry say an acid is:. A proton donor. 1. What are . acids. and how do they taste like?. What . acids. or . acidic . solutions. do you know?. What are . acids. and how do they taste like?. Taste: . sour, tart, tangy. What are . bases. Acids/ BASES. Acids. When dissolved in water, it will . ionize . into positively charged hydronium ions (H. 3. O+) and negatively charged ions of some other element. . Bases. Also . known as an alkali. Different definitions of acids and bases. Acids are proton donors (. Brønsted. Lowry definition). they generate H. 3. O. +. in water (Arrhenius definition). Bases are proton acceptors. they generate OH. What is an Acid?. A solution with an excess of H. +1. ions. How do we know that a chemical is an acid?. Most Acids start with an ‘H’ in their chemical formula. What are the properties of an Acid?. Taste. Acids taste sour. Foods. citrus fruits . yogurt and sour milk. carbonated beverages. vinegar. Acid. citric acid. lactic acid. carbonic acid. acetic acid. Bases taste bitter. Like soap. Touch. Chemistry. Jacqueline P. Hancock, B.S., . M.Ed. Acid-Base Theories. Bracken Cave, near San Antonio, Texas, is home to twenty to forty million bats. Visitors to the cave must protect themselves from the dangerous levels of ammonia in the cave. Ammonia is a byproduct of the bats’ urine. You will learn why ammonia is considered a base.. Explain the chemical composition of acids and bases, and explain the change of pH in neutralization reactions.. D12. I can differentiate between acids and bases.. Learning Target. When dissolved in water, they ionize (form ions). An introduction to the properties of acids, bases, and the pH scale. Complete the following table. Element. Atomic. #. Mass #. Protons. Electrons. Neutrons. Ion, Isotope, or Neutral?. 82. 209. 16. 18. Dr. Ron . Rusay. Fall . 2012. Chapter. 3. Structure . and . Bonding. Acids and Bases. Models of Acids and Bases. Arrhenius. : Acids produce H. . & bases produce OH. . ion in aqueous solutions .. Different definitions of acids and bases. Acids are proton donors (. Brønsted. Lowry definition). they generate H. 3. O. +. in water (Arrhenius definition). Bases are proton acceptors. they generate OH. …. .. Acids & Bases are Based on WATER!. Depending on the amount of H+ or OH- ions, the “water” becomes either acidic or basic (aka alkaline). The pH scale determines the strength of the acid/base. A solution with an excess of H. +1. ions. How do we know that a chemical is an acid?. Most Acids start with an ‘H’ in their chemical formula. What are the properties of an Acid?. Tastes sour. Turns blue litmus paper red. Review!. What is an electrolyte?. What are examples? . Aim # 1 How do we define acids and bases?. Acidity:. . measure . of the hydrogen (H. +. ), hydronium (H. 3. O. +. )ion concentration of a . solution. Dissolve in solution to produce ions. .