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Hydrates & Gram Formula Mass

Hydrates & Gram Formula Mass. Hydrates:. Hydrate = a substance in which water is part of the crystal structure. Feels dry to the touch Water is “trapped” Naming = name of the compound + “prefix” hydrate AlCl 3 •6H 2 O K 2 SO 3 •2H 2 O Ni(OH) 2 •H 2 O. Naming Hydrates:.

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Hydrates & Gram Formula Mass

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  1. Hydrates & Gram Formula Mass

  2. Hydrates: • Hydrate = a substance in which water is part of the crystal structure. • Feels dry to the touch • Water is “trapped” • Naming = name of the compound + “prefix” hydrate • AlCl3•6H2O • K2SO3•2H2O • Ni(OH)2•H2O

  3. Naming Hydrates: • Naming = name of the compound + “prefix” hydrate • AlCl3•6H2O • K2SO3•2H2O • Ni(OH)2•H2O

  4. Gram Formula Mass • Gram Formula Mass (GFM) = the mass (in grams) of 1 mol of an ionic compound. • Molar mass of the ionic compound • GFM of GFM of Fe2O3? • How many Fe in each unit? • How many O in each unit? • 1 mole of Fe2O3 units = • GFM of (NH4)2S? • How many N? • How many H? • How many S? • 1 mole of (NH4)2S =

  5. Gram Formula Mass • GFM of GFM of Fe2O3? • How many Fe in each unit? • How many O in each unit? • 1 mole of Fe2O3 units =

  6. Gram Formula Mass • GFM of (NH4)2S? • How many N? • How many H? • How many S? • 1 mole of (NH4)2S =

  7. Gram Formula Mass • What is the mass of 6.2 mol FeCl3? • How many moles are there in 4.54 g (NH4)2HPO4?

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