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Overview acid base rxns and pH

Overview acid base rxns and pH - 1 CH204 Strong Acids...

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1 CH204 Strong Acid and Strong Base Neutralization Reactions – Overview Strong Acids 1. Acids are substances that generate H + in aqueous solutions. a. Strong acids ionize 100% in water. b. That is, the strong acids completely ionized (or almost completely ionize) to produce H + when in dilute aqueous solution. 2. The H + ions produced in aqueous solutions produce acidic solutions . 3. Acidic solutions have a pH lower than 7. There are only seven strong acids. 1. HCl – hydrochloric acid 2. HBr – hydrobromic acid 3. HI – hydroiodic acid 4. HNO 3 – nitric acid 5. HClO 3 – chloric acid 6. HClO 4 – perchloric acid 7. H 2 SO 4 – sulfuric acid An acid cannot be an acid unless it is in solution. It must be able to produce H + and that can happen only in solution. Often, and correctly so, acids are named with the symbol (aq) because acids are more commonly dissolved in water. 1. Strong Bases, Insoluble Bases, and Weak Bases a. Characteristic of common inorganic bases is that they produce OH - ions in solution. b. Strong bases ionize 100% in water. 2. Strong soluble bases are ionic metal hydroxides . 3. Strong soluble bases dissolve in water to produce hydroxide ions (OH ). 4. The hydroxide ions produced in water creates basic solutions . 5. The pH of basic solutions are greater that 7. There are only eight strong soluble bases. 1. LiOH – lithium hydroxide 2. NaOH – sodium hydroxide 3. KOH – potassium hydroxide 4. RbOH – rubidium hydroxide 5. CsOH – cesium hydroxide 6. Ca(OH) 2
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