Chapter 11 Equilibirium

Le Chatelier

________ discovered that if a chemical system at equilibrium is stressed (disturbed) it will reestablish equilibrium by shifting the reactions involved.

amount of heat

It also changes the ________ in the system and can be treated as a concentration effect.

temperature

Changing the ________ changes the value of the equilibrium constant.

gaseous species

The pressure may be changed by changing the volume of the container or by changing the concentration of a(n) ________.

constant expression

The equilibrium ________ for systems of slightly soluble salts is called the solubility product constant, Ksp.

unknown solution

An acid-base titration is a laboratory procedure commonly used to determine the concentration of an ___________________.

titration

A base solution of known concentration is added to an acid solution of unknown concentration (or vice versa) until an acid–base indicator visually signals that the endpoint of the _________ has been reached.

equivalence point

The _____________ is the point at which a stoichiometric amount of the base has been added to the acid.