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level: Level 1 of SOLUBILITY

Questions and Answers List

level questions: Level 1 of SOLUBILITY

Question	Answer
• It is the maximum amount of a solute needed to form a saturated solution at a specific temperature and specific solvent amount	Solubility
Solubility is referred to in three different terms	• Saturated • Unsaturated • Supersaturated
• The solute in solution is in equilibrium with the solid phase	Saturated solution
• The dissolved solute in a concetration below that necessary for complete saturation at a definite temperature • More solute dissolves	Unsaturated solution (subsaturated)
• Contains more of the dissolved solute than it would normally contain at a definite temperature, where the undissolved solute is present • Has tendency to crystallize and precipitate	Supersaturated solution
Solubility of compounds is dependent on:	• Physicochemical properties of the solute and solvent • Pressure • PH of the solution • Temperature • State of subdivision of solute (Particle size / Surface area)
• As temperature increase a. more solid can dissolve b. less solid can dissolve	a. more solid can dissolve
As you increase temperature, gas molecules do what?	• Increase Kinetic Energy
How to get gases to dissolve?	• Decrease temperature, and increase pressure
• Parts of solvent required for 1 part solute, according to USP Seven groups • Six groups according to EP	Solubility Expressions
• A good solvent for salts, sugars and similar compounds	Water
• Often the solvent for substances that are only slightly soluble in water	Mineral oil
Not everything dissolves in water True or False	• True