chemistry test for solutions and concentrations

colloid

a mixture whose particles are intermediate in size between those of a suspension and a solution

concentrated

a solution containing a large amount of solute

concentration

a measurement of the amount of solute that is dissolved in a given quantity of solvent; usually expressed as mol/L

dilute (adj)

the state of a solution that contains more solvent than solute- more of the dissolver vs. the substance being dissolved

exothermic

a process that releases heat to its surroundings

endothermic

a process that absorbs heat from the surroundings

heat of solution

the heat evolved or absorbed when a substance dissolves

like dissolves like

polar compounds dissolve polar compound, non polar dissolves non polar compounds but polar compounds and non polar do not dissolve each other.

mixture

a physical blend of two or more substances that are not chemically combined

molality

the concentration of solute in a solution expressed as the number of moles of solute dissolved in 1 kilogram of solvents

molarity

the concentration of solute in a solution expressed as the number of moles of solute dissolved in 1 liter of solution"

saturated

a solution containing the maximum amount of solute for a given amount of solvent at a constant temperature and pressure; an equilibrium exists between undissolved solute and ions in solution

solubility

the amount of a substance that dissolves in a given quantity of solvent at specified conditions of temperature and pressure to produce a saturated solution

solution

a homogeneous mixture; consists of solutes dissolved in a solvent

solute

dissolved particles in a solution

solvent

the dissolving medium in a solution

super saturated

a solution that contains more solute than it can theoretically hold at a given temperature; excess solute precipitates if a seed crystal is added

suspension

a mixture from which some of the particles settle out slowly upon standing

unsaturated

a solution that contains less solute than a saturated solution at a given temperature and pressure

dilute (verb)

to add more solvent (the dissolver) to the solution