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Negative logarithm of the concentration (mol/L) of the H3O+[H+] ion, scale is commonly used over a range 0 to 14.

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Energy

The capacity to do work or transfer heat.

PseudobinaryIonic Compounds

Compounds that contain more than two elements but are named like binary compounds.

Adhesive Forces

Forces of attraction between a liquid and another surface.

Composition Stoichiometry

Descibes the quantitative (mass) relationships among elements in compounds.

Valence Shell Electron Pair Repulsion Theory

Assumes that electron pairs are arranged around the central element of a molecule or polyatomic ion so that there is maximum separation (and minimum repulsion) among regions of high electron density.

 

Molality

Concentration expressed as number of moles of solute per kilogram of solvent.

Exothermicity

The release of heat by a system as a process occurs.

Emission Spectrum

Spectrum associated with emission of electromagnetic radiation by atoms (or other species) resulting from electronic transitions from higher to lower energy states.

 

Suspension

A heterogeneous mixture in which solute-like particles settle out of solvent-like phase some time after their introduction.

Cathode Ray Tube

Closed glass tube containing a gas under low pressure, with electrodes near the ends and a luminescent screen at the end near the positive electrode, produces cathode rays when high voltage is applied.