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chemistry

chemistry. 9.4. Naming Acids. An acid is a compound that contains one or more hydrogen ions and releases those hydrogen ions (H + ) when dissolved in water. Acids have various uses. 9.4. Naming Acids. Three rules can help you name an acid with the general formula H n X.

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chemistry

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  1. chemistry

  2. 9.4 Naming Acids • An acid is a compound that contains one or more hydrogen ions and releases those hydrogen ions (H+) when dissolved in water. Acids have various uses.

  3. 9.4 Naming Acids • Three rules can help you name an acid with the general formula HnX. • If the acid is a binary acid, then the name of the anion (X) will end in –ide. The acid name begins with the prefix hydro-. The stem of the anion has the suffix -icand is followed by the word acid. Example HF is hydrofluoric acid fluoride

  4. 9.4 Naming Acids • When the acid contains an oxyanion and name ends in -ite, the acid name is the stem of the anion with the suffix -ous, followed by the word acid. Example HNO2is nitrous acid nitrite

  5. 9.4 Naming Acids • When the acid containns an oxyanion and name ends in -ate, the acid name is the stem of the anion with the suffix -ic followed by the word acid. Example – H2SO4 is sulfuric acid. sulfate

  6. 9.4 Naming Acids • A Summary of the Three Rules for Naming Acids.

  7. 9.4 Writing Formulas for Acids • Writing Formulas for Acids • How are the formulas of acids determined?

  8. 9.4 Writing Formulas for Acids • Use the rules for writing the names of acids in reverse to write the formulas for acids. • What is the formula for hydrobromic acid? Following Rule 1, hydrobromic acid (hydro- prefix and -ic suffix) must be a combination of hydrogen ion (H+) and bromide ion (Br–). The formula of hydrobromic acid is HBr. • Be sure the charges balance.

  9. 9.4 Writing Formulas for Acids

  10. 9.4 Names and Formulas for Bases • Names and Formulas for Bases • Bases are compounds that contain hydroxide ions, like NaOH – sodium hydroxide. When the base is dissolved in water, it produces OH- ions.

  11. 9.4 Names and Formulas for Bases • Bases are named in the same way as other ionic compounds—the name of the cation is followed by the name of the anion. • For example, aluminum hydroxide consists of the aluminum cation (Al3+) and the hydroxide anion (OH–). The formula for aluminum hydroxide is Al(OH)3.

  12. 9.4 Names and Formulas for Bases • Sodium hydroxide (NaOH) is a base that is used to make paper.

  13. 9.4 Names and Formulas for Bases • Cleaners and soap contain sodium hydroxide.

  14. END OF SHOW

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