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Any of six colorless, crystalline, isomeric acids having the formula C9H10O2, derived from xylene.

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Dumas Method

A method used to determine the molecular weights of volatile liquids.

Equilibrium Constant

A quantity that characterizes the position of equilibrium for a reversible reaction, its magnitude is equal to the mass action expression at equilibrium. K varies with temperature.

Electrolytic Cells

Electrochemical cells in which electrical energy causes nospontaneous redox reactions to occur. An electrochemical cell in which chemical reactions are forced to occur by the application of an outside source of electrical energy.

Critical Point

The combination of critical temperature and critical pressure of a substance.

Homonuclear

Consisting of only one element.

Saponification

Hydrolysis of esters in the presence of strong soluable bases.

Sublimation

The direct vaporization of a sold by heating without passing through the liquid state.

Atomic Mass Unit (amu)

One twelfth of a mass of an atom of the carbon-12 isotope, a unit used for stating atomic and formula weights, also called dalton.

Cathode

Electrode at which reduction occurs in a cathode ray tube, the negative electrode.

xenon

A heavy, colorless, chemically inactive, monatomic gaseous element used for filling radio, television, and luminescent tubes. Symbol: Xe, at. wt.: 131.30, at. no.: 54.