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The number of moles of a component of a mixture divided by the total number of moles in the mixture.

 

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Organic Chemistry

The chemistry of substances that contain carbon-hydrogen bonds.

Heat of Condensation

The amount of heat that must be removed from one gram of a vapor at it's condensation point to condense the vapour with no change in temperature.

Associated Ions

Short-lived species formed by the collision of dissolved ions of opposite charges.

Indicators

For acid-base titrations, organic compounds that exhibit different colors in solutions of different acidities, used to determine the point at which reaction between two solutes is complete.

Capillary Action

The drawing of a liquid up the inside of a small-bore tube when adhesive forces exceed cohesive forces, or the depression of the surface of the liquid when cohesive forces exceed the adhesive forces.

Degenerate

Of the same energy.

Combination Reaction

Reaction in which two substances (elements or compounds) combine to form one compound.

Electrochemistry

Study of chemical changes produced by electrical current and the production of electricity by chemical reactions.

Antibonding Orbital

A molecular orbital higher in energy than any of the atomic orbitals from which it is derived, lends instability to a molecule or ion when populated with electrons, denoted with a star (*) superscript or symbol.

Electromagnetic Radiation

Energy that is propagated by means of electric and magnetic fields that oscillate in directions perpendicular to the direction of travel of the energy.