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Terms in this set (42)
a type of mixture in which 2 or more substances are in single phase.
Something is a capable of being dissolved by something else. capable of being dissolved is known as __________________
the dissolving medium in a solution is called the _______________
The substance being dissolved in a solution is the ____________.
the process of dissolving where the solvent molecules surround the solutes particles to cause them to dissolve
solvation where the solvent is water
There are ____ types of mixtures and they depend on the ______ of the particles of the solute
suspensions; colloids; solutions
From largest particles to smallest particle of the solute:
particles in a solvent are so large that they settle out unless the mixture is constantly stirred or agitated
particles that are intermediate in size between those in solutions and suspensions. look similar to solutions bc their particles cannot be seen.
occurs when light is scattered by colloidal particles dispersed in a transparent medium. used to distinguish between a solutions and a colloid
homogeneous mixture of two or more substances in a single phase. particles are very small and cannot be separated by filtering
Water is a good solvent for __________________ compounds
positive and negative
ionic compounds are made of ______________ and __________________ ions.
Even though water is a covalent cmpd, it is a very _____________ molecule.
polar compounds have _______________ electron sharing creating positive and negative parts of the molecule
the positive and negative of each substance _______________ and the water pulls the ionic compound apart.
universal solvent; aqueous solutions
Water is known as the _________________ _________________ and are noted as ____________ ______________
Water is good for dissolving ionic compounds and polar compounds but it is not a good solvent for ________________ compounds
occurs when the attraction between solute and solvent is stronger than solute-solute attraction
liquid solutes and solvents not dissolvable in each other
liquids that dissolve freely in one another in any proportion
molecules or ions
substances that dissolve in water are classified according to whether they yield __________________ or ________________ in solution.
substance that dissolves in water and conducts electric current. ionic compound - ions are free to move, causing current. strong acid or base
substances that dissolves in water and does not conduct an electric current. neutral solute molecule. weak acid or base
the extent to which one substance dissolves in another.
usually in grams of solute per 100 g of solvent or per 100 mL of solvent at a given temperature
1. Surface area of the solute
2. Temperature of the solvent
3. Stirring or shaking the solution
What factors can increase or decrease solubility
Because the dissolution process occurs at the surface of the solute, it can be _____________ _____ if the surface area of the solute is increased
At ________________ ________________, collisions between solvent molecules and solvent are more frequent and of higher energy. This helps to disperse solute molecules among the solvent molecules, and speed up the dissolving process.
stirring or shaking
________________ or ______________________ helps to disperse solute particles and increase contact between the solvent and solute surface. This speeds up the dissolving process.
for _______________, solubility varies with pressure also
gases; solids in liquids
Increase in temperature usually decreases ______________ of gases and increases solubility of ___________ in ______________.
increases in pressure increases _________ solubility in liquids
measure of how well one substance dissolves in another.
a solution that contains the maximum amount of dissolved solute
a solution that contains less solute than a saturated solution under the existing conditions
a solution that contains more dissolved solute that a saturated solution contains under the same conditions
measure of the amount of solute in a given amount of solution
there is a relatively small amount of solute in a solvent
there is a relatively large amount of solute in a solvent
solution can be made less concentrated through a _______________ and is measured in terms of __________________
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