Chapter 13 Notesheets Name ___________________________ Solutions Period_______Date _______________ 13.1: The Nature of Solutions 1. Solution: A ____________________ mixture of 2 or more substances in a ________________ physical state (visibly the same throughout.) A. Properties of Solutions: 1. ______________ particles 2. particles are _______________ distributed 3. particles won’t _________________ when allowed to stand 4. every substance has it’s own __________________ B. Vocabulary: Solute: substance that is __________________(usually 50% of solution) Solvent: substance that does the __________________ (usually 50% of the solution) Soluble means something _____ be dissolved in a solvent. Ex) Insoluble means something _________ be dissolved in a solvent. Ex) C.Types of Solutions: 1. Solid Solutions (solid solute) Alloys: ______________ solution that contains two or more ________________. Ex) Advantages of alloys over pure metals: 2. Gaseous Solutions: (gaseous solute) The properties of gaseous solutions depend on the properties of its _______________________. Ex) 3. Liquid Solutions: (liquid solute) Miscible liquids: Two liquids that are _________to mix together in any proportion. Ex) Immiscible liquids: Two liquids that are ______________ to mix together in any proportion. Ex) Aqueous Solutions: Solutions with _____________ as the solvent. Because water can dissolve so many things, it is called the _______________________________. Tincture: Solutions with __________________ as the solvent. Ex) 1 Electrolyte: __________ compounds dissolve in water to form ions that can ________________ an _______________ current. Ex) Nonelectrolyte: __________________ compounds dissolve in water to form molecules that ________________conduct an _____________ current. Ex) D. Separating Solutions: Done through a change of state - _________________________ or ______________________________. 13.2: Concentrations of Solutions A. Terms Used for Concentration: The amount of _____________ in a given amount of solvent or solution. 1. Concentrated: When a solution has a _____________ amount of solute compared to solvent. 2. Dilute: When a solution has a _____________ amount of solute compared to solvent. 3. Saturated: A solution is saturated if it contains as much ______________ as can possibly be dissolved under existing conditions of _____________________ and _____________________. 4. Unsaturated: Has __________ than the maximum amount that can be dissolved. 5. Supersaturated: Has _________ than the maximum amount that can be dissolved. The Formation of Solutions: B. How a Solution forms: 1. Process of dissolving takes place at the _______________ of the solute. 2. The interaction between the solute and solvent to allow ions to separate is called _________________________. This interaction is called _______________________ when water is the solvent. 3. Energy is ______________ when the ________ between solute and solvent break. ( ) 4. Energy is _______________ when bonds between solute and solvent _________. ( ) 2 C. Solubility 1. Solubility is the ________________ of ________________ that will dissolve in a given amount of _______________ at a certain _______________________ (pressure.) 2. Factors that affect solubility: A. Nature of Solute and Solvent: General rule: _______________ dissolves _______________ __________________ in __________________ __________________ in __________________ Example: B. Temperature: 1. As temperature increases, the solubility of gases ____________________. 2. For an endothermic solid: If the temperature drops when the solute and solvent are mixed, raising the temperature will ________________ solubility. 3. For an exothermic solid: If the temperature rises when the solute and solvent are mixed, raising the temperature will ____________________ solubility. C. Pressure: 1. As pressure increases over a gas, solubility ___________________. 3. Factors that affect the Rate of Dissolving: A. __________________________ B. __________________________ C. _________________________ D. All three of these factors affect the ________________ over which the solvent can come into contact with the ________________. 3 D. Molarity: (M) molarity = moles of solute liters of solution M= n v unit = mol L Ex #1) What is the molarity of a solution formed by mixing 10.0 g of sulfuric acid with enough water to make 100.0 mL of solution? Ex #2) How many grams of bromine are needed to prepare 0.500 L of a 0.0100 M solution of bromine in water? Ex #3) Describe how would you prepare 100.0 mL of 0.7500 M potassium nitrate? Ex #4) What volume of 0.600 M sodium hydroxide can be prepared from 4.8 g of solute? 4