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IPS Chapter 4

IPS Chapter 4. Solubility. Definitions. Mixture A physical combination of elements and/or compounds. Components keep their identity. Definitions. Homogeneous- Consistent composition within the sample (Solution) Coke, Gatorade, air Heterogeneous- Different composition within same sample

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IPS Chapter 4

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  1. IPS Chapter 4 Solubility

  2. Definitions • Mixture • A physical combination of elements and/or compounds. • Components keep their identity

  3. Definitions • Homogeneous- Consistent composition within the sample (Solution) • Coke, Gatorade, air • Heterogeneous- Different composition within same sample • Blood, pizza, rocks

  4. Parts of a Solution • Solute • Part which is dissolved- usually solid • Solvent • Part in which solute is dissolved- usually liquid • Precipitate • Undissolved solid

  5. How much is dissolved? • Saturated • No more solute can be dissolved • Unsaturated • More can be dissolved • Supersaturated • More solute is added than can be dissolved- Precipitate forms

  6. Concentration • How much solute is dissolved in a solvent • Expressed in g/cm3 • How does this differ from density since density uses the same unit? • Density refers to one substance, while concentration refers to two. • Divide mass of solute by volume of solvent to determine concentration

  7. Solubility • The maximum amount of solute that can be dissolved in a solvent. • The concentration of a saturated solution • Expressed in g/100cm3 • Multiply concentration by 100 • Is a Characteristic property of the solute in that solvent. • Dependent on temperature

  8. Soluble Can be dissolved Insoluble Cannot be dissolved Mixtures of gases and liquids Miscible Can be mixed Immiscible Cannot be mixed Other definitions

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