Chapter 19

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Across
  1. 3. a method or process of determining the concentration of a dissolved substance in terms of the smallest amount of reagent of known concentration required to bring about a given effect in reaction with a known volume of the test solution.
  2. 10. when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water.
  3. 14. acid) that contains within its molecular structure two hydrogen atoms per molecule capable of dissociating
  4. 15. such as phosphoric acid (H3PO4) and citric acid (C6H8O7), have three
  5. 16. an acid that dissociates incompletely, releasing only some of its hydrogen atoms into the solution.
  6. 17. is a solution containing a precisely known concentration of an element or a substance, a known weight of solute is dissolved to make a specific volume.
  7. 20. the ion H3O+, consisting of a protonated water molecule and present in all aqueous acids.
  8. 21. one that completely ionizes (dissociates) in a solution
Down
  1. 1. solutions resist pH changes. A buffer solution is typically made by mixing a weak acid and one of its salts OR mixing a weak base with one of its salts.
  2. 2. that has a higher concentration of hydroxide ions that hydrogen ions; a pH between 7 and 14.
  3. 4. an ionization reaction in pure water or an aqueous solution, in which a water molecule, H2O, deprotonates (loses the nucleus of one of its hydrogen atoms) to become a hydroxide ion, OH−.
  4. 5. or stoichiometric point, of a chemical reaction is the point at which chemically equivalent quantities of acid and base have been mixed.
  5. 6. the point in a titration at which a reaction is complete, often marked by a color change.
  6. 7. A buffer solution is an aqueous solution consisting of a mixture of a weak acid and its conjugate base, or vice versa
  7. 8. is a basic, ionic salt of an alkali metal or alkaline earth metal chemical element.
  8. 9. a chemical base that does not ionize fully in an aqueous solution.
  9. 11. (of a compound, especially a metal oxide or hydroxide) able to react both as a base and as an acid.
  10. 12. is something like sodium hydroxide or potassium hydroxide which is fully ionic.
  11. 13. hydrogen (H+) ions while bases produce hydroxide (OH-) ions in solution.
  12. 18. an acid such as H2SO4 (sula method or process of determining the concentration of a dissolved substance in terms of the smallest amount of reagent of known concentration required to bring about a given effect in reaction with a known volume of the test solution.
  13. 19. the measure of the acidity or alkalinity of a solution.