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Chemistry

termDefinition
molal boling point depression constant the change in boiling point for a !-molal solution of a nonvolatile molecular solution
concentrated solution a solution containing a large amount of solute
solubility the amount a substance that dissolves in a given quantity of solvent at a specific conditions of temperatures and pressures to produce a saturated solution.
surface tension an inward force that tends to minimize the surface area of a liquid
molarity the concentration of solute in a solution expressed as the number of moles of solute dissolved in ! liter of solution
unsaturated solution a solution that contains less solute than a saturated solution at a given temp and pressure
surfacant any substance that interferes with the hydrogen bonding between water molecules and thereby reduces surface tension
aqueous solution water that contains dissolved substance
solvent the dissolving medium in a solution
colligatuve property a property of a solution that depends only upon the number of solute particle, and not upon their identities
miscible describes liquid that dissolves in one another in all proportions
suspension a mixture from which some of the particles settle out slowly upon standing
solute dissolved particles in a solution
freezing-point depression a difference in temp between the freezing point of a solution and the freezing point of the pure solvent
immiscible describes liquids that are insoluable in one another
colloid a mixture whose particles are intermediate in size between those of a suspension and a solute solution
electrolytes a compound that conducts an electric current when it is in an aqueous solution in molten state
boiling-point elevation the difference in temp between the boiling point of a solution and the boiling point of the pure solvent.
supersaturated solutions a solution that contains more solute than it can theoretically hold at a given temp
Tyndall effect scattering of light by particles in a colloid or suspension which causes a beam of light to become visible
nonelectrolye a compound that does not conduct an electric current in aqueous solution on in molten state
molality the concentration of solute in a solution expressed as the number of moles of solute dissolved in 1 kg of solution
Henry's Law at given temp the solubility of a gas in a liquid is directly proportional to the pressure of the gas above the liquid
Brownian motion the chaotic movement of collidal particles caused by collisions with particles of the solvent in which they are disspursed
strong electrlyes a solution in which large portions of the solute exists as ions
mole fraction the ratio of the moles of solute in solution the total number of both solvent and solute
concentration a measurement of the amount of solute that is dissolved in a given quantity of solvent
emulsion the colloidal dispersion of one liquid in another
weak electrolyes a solution that conducts electricity poorly because only a fraction of the solute exists as ions
molal freezing point depression constant the change in freezing point for a 1 molal solution of a nonvolatile molecular solution
dulite solution a solution that contains a small amount of solute
saturated solution a solution containing a maximum amount solute for a given amount of solvent at a constant temp and pressure
hydrate a compound that has a specific number of water molecules bound to each formula unit
Created by: westgerdes