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The pentosan occurring in woody tissue that hydrolyzes to xylose: used as a source of furfural.

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Contact Process

Industrial process by which sulfur trioxide and sulfuric acid are produced from sulfur dioxide.

Boiling Point

The temperature at which the vapor pressure of a liquid is equal to the applied pressure, also the condensation point

Compressed Gas

A gas or mixture of gases having, in a container an absolute pressure exceeding 40 psi at 21.1°C (70°F)

Basic Anhydride

The oxide of a metal that reacts with water to form a base.

Ideal Gas

A hypothetical gas that obeys exactly all postulates of the kinetic-molecular theory.

 

Mole Fraction

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

 

Mass

A measure of the amount of matter in an object. Mass is usually measured in grams or kilograms.

High Spin Complex

Crystal field designation for an outer orbital complex, all t2g and eg orbitals are singly occupied before any pairing occurs.

Hund's Rule

All orbitals of a given sublevel must be occupied by single electrons before pairing begins.

Geometrical Isomers

Compounds with different arrangements of groups on either side of a bond with restricted rotation, such as a double bond or a single bond in a ring, for example cis-trans isomers of certain alkenes. Stereoisomers that are not mirror images of each other, also known as position isomers.