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Online Treasure Hunt on Acids & Bases

Online Treasure Hunt on Acids & Bases. Renz Vincent Libot. Euler Benedict Mendoza. ACIDS AND BASES. ACID:. An  acid  (from the Latin  acidus / acēre  meaning  sour ) is a substance which reacts with a base. BASE:.

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Online Treasure Hunt on Acids & Bases

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  1. Online Treasure Hunt on Acids & Bases Renz Vincent Libot Euler Benedict Mendoza

  2. ACIDS AND BASES ACID: • An acid (from the Latin acidus/acēre meaning sour) is a substance which reacts with a base. BASE: • A base in chemistry is an aqueous substance that can accept hydroniumions.

  3. What are the physical and chemical behavior of acids and bases? ACIDS: • taste sour • corrosive to metals • change litmus to red • become less acidic when mixed with bases. BASES: • feel slippery • change litmus to blue • become less basic when mixed with acids

  4. How do we differentiate an acid from a base? BASES: • release a hydroxide ion into water solution. • neutralize acids in a neutralization reaction. ACIDS: • neutralize bases in a neutralization reaction. An acid and a base combine to make a  salt and water. A salt is any ionic compound that could be made with the anion of an acid and the cation of a base.

  5. How are the strength of acids and bases identified? • ACIDS • Strong Acids • completely dissociate in water • forming H+ and an anion. • 2. Weak Acids • partially dissociates in water to give H+ and the anion • BASES • 1. Strong Bases • they dissociate 100% into the cation and OH- (hydroxide ion). • 2. Weak Bases • do not furnish OH- ions by dissociation. • react with water to furnish the OH- ions.

  6. How are acids and bases quantified? • Weak acids are titrated in the presence of indicators which change under slightly alkaline conditions. • Weak bases should be titrated in the presence of indicators which change under slightly acidic conditions.

  7. What are pH indicators? • halochromic chemical compound that is added in small amounts to a solution so that the pH (acidity or basicity) of the solution can be determined visually. Hence a pH indicator is a chemical detector for hydronium ions (H3O+) or hydrogen ions (H+) in the Arrhenius model.

  8. What are common applications/uses of acids and bases? DISSOCIATION: • the separation of a molecule into ions, and it is a key factor for evaluating the "strength" of acids and bases. The more a substance is prone to dissociation, the better it can conduct an electric current, because the separation of charges provides a "pathway" for the current's flow

  9. NEUTRALIZATION: • the process whereby an acid and base react with one another to form a salt and water. The human stomach produces hydrochloric acid, commonly known as "stomach acid." It is generated in the digestion process, but when a person eats something requiring the stomach to work overtime in digesting it—say, a pizza—the stomach may generate excess hydrochloric acid, and the result is "heartburn." When this happens, people often take antacids, which contain a base such as aluminum hydroxide (Al[OH] 3 ) or magnesium hydroxide (Mg[OH] 2 ).

  10. THE END!  HOPE YOU ENJOYED

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