Unit 14 Solutions

Unit 14 Solutions - SOLUTIONS SOLUTIONS The Nature of...

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SOLUTIONS SOLUTIONS The Nature of Solutions (Ch 16)
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Introduction to Solutions Introduction to Solutions Heterogeneous vs. Homogeneous Solution: A homogeneous mixture of two or more substances in a single physical state. Solute: The substance that is dissolved. Solvent: The substance that does the dissolving. Soluble: Capable of being dissolved (salt in water). Insoluble: Not capable of dissolving (oil in water).
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Properties of Solutions Properties of Solutions Particles are very small (atoms, molecules, or ions). Particles are evenly distributed in solution. Particles will not separate if left in a constant condition. Solvent is normally present in the greatest amount. Solute may change state.
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Types of Solutions Types of Solutions Solid Solutions Solid Solutions List examples. Alloys: Solid solutions of two or more metals. Properties may be significantly different than the metals by themselves – designed for a purpose. Strength, corrosion resistance, higher melting point, etc.
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List examples. If the gases do not react they will mix. Types of Solutions Types of Solutions Gaseous Solutions Gaseous Solutions
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Both the solvent and solution are liquids. The solute may be solid, liquid, or gas. Examples: Sugar and water, ethylene glycol and water, and CO 2 and water. Miscible: Ethanol and water. Immiscible: Oil and water. Types of Solutions Types of Solutions Liquid Solutions Liquid Solutions
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Solutions with water as the solvent. Electrolyte: Solute dissolves to form an ionic solution that conducts electrical current (NaCl). Nonelectrolytes: Does not conduct electrical current (sugar and water). Types of Solutions Types of Solutions Aqueous Solutions Aqueous Solutions
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Summary Summary SOLUTE SOLVENT EXAMPLE Gas Gas Air Gas Liquid Seltzer Liquid Liquid Antifreeze Solid Liquid Seawater Gas Solid Charcoal filter Liquid Solid Dental filling Solid Solid Sterling silver
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How do solutions form? How do solutions form?
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Unit 14 Solutions - SOLUTIONS SOLUTIONS The Nature of...

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