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level: Level 1 of SOLUBILITY

Questions and Answers List

level questions: Level 1 of SOLUBILITY

QuestionAnswer
• It is the maximum amount of a solute needed to form a saturated solution at a specific temperature and specific solvent amountSolubility
Solubility is referred to in three different terms• Saturated • Unsaturated • Supersaturated
• The solute in solution is in equilibrium with the solid phaseSaturated solution
• The dissolved solute in a concetration below that necessary for complete saturation at a definite temperature • More solute dissolvesUnsaturated 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 precipitateSupersaturated 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 dissolvea. 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 EPSolubility Expressions
• A good solvent for salts, sugars and similar compoundsWater
• Often the solvent for substances that are only slightly soluble in waterMineral oil
Not everything dissolves in water True or False• True