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Hydrated Compounds and Naming Acids. Hydrated compounds. A hydrated compound is an ionic compound that contains water within its crystal structure This water can be driven off by heating the compound Ex. Copper(II) sulfate pentahydrate . CuSO 4 ·5H 2 O. Naming Acids.
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Hydrated compounds • A hydrated compound is an ionic compound that contains water within its crystal structure • This water can be driven off by heating the compound • Ex. Copper(II) sulfate pentahydrate. • CuSO4·5H2O
Naming Acids • An acid is an ionic compound, with Hydrogen as its cation, that has been dissolved in water (aq)
Naming Acids Binary Acids: • The prefix “hydro” is used followed by the other element, ending in “ic” Examples: HCl hydrogen chloride hydrochloric acid H2S hydrogen sulphidehydrosulphuric acid HBr hydrogen bromide hydrobromic acid
Naming Acids Tertiary Acids (also called OXO acids)(H+ bonded to polyatomic ion) • If the name of the anion ends in “ate”, the name of the acid ends in “ic” Example: H3PO4 hydrogen phosphate phosphoric acid • If the name of the anion ends in “ite”, the name of the acid ends in “ous” Example: HNO2 hydrogen nitrite nitrous acid
Naming Acids Prefixes “per” and “hypo” • Examples: HClO hydrogen hypochlorous hypochlorite acid HClO4 hydrogen perchloric perchlorate acid