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Hydrocarbons that contain double or triple carbon-carbon bonds.

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van der Waals' Equation

An equation of state that extends the ideal gas law to real gases by inclusion of two empirically determined parameters, which are different for different gases.

Carcinogen

A substance capable of causing or producing cancer in mammals.

 

Semipermable Membrane

A thin partition between two solutions through which certain molecules can pass but others cannot.

Entropy

A thermodynamic state or property that measures the degree of disorder or randomness of a system.

Titration

A Procedure in which one solution is added to another solution until the chemical reaction between the two solutes is complete, the concentration of one solution is known and that of the other is unknown.

 

Formula Weight

The mass of one formula unit of a substance in atomic mass units.

 

Compressed Gas

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

Structural Isomers

Compounds that contain the same number of the same kinds of atoms in different geometric arrangements.

Amide

Compound containing the O-C-N group.Compound that can be considered a derivative of ammonia in which one or more hydrogens are replaced by a alkyl or aryl groups.

 

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.