Compound in which an oxygen atom is bonded to two alkyl or two aryl groups, or one alkyl and one aryl group.
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Atomic Weight
Weighted average of the masses of the constituent isotopes of an element, The relative masses of atoms of different elements.
Hydrometer
A device used to measure the densities of liquids and solutions.
Reaction Quotient
The mass action expression under any set of conditions (not necessarily equlibrium), its magnitude relative to K determines the direction in which the reaction must occur to establish equilibrium.
Enantiomer
One of the two mirror-image forms of an optically active molecule.
Endothermicity
The absorption of heat by a system as the process occurs.
Fractional Precipitation
Removal of some ions from solution by precipitation while leaving other ions with similar properties in solution.
Octahedral
A term used to describe molecules and polyatomic ions that have one atom in the center and six atoms at the corners of a octahedron.
K Capture
Absorption of a K shell (n=1) electron by a proton as it is converted to a neutron.
Octet Rule
Many representative elements attain at least a share of eight electrons in their valence shells when they form molecular or ionic compounds, there are some limitations.
Carbonium ion
An orgainic ion carrying a positive charge on a carbon atom.
