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The rates of effusion of gases are inversely proportional to the square roots of their molecular weights or densities.

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Compound

A substance of two or more elements in fixed proportions. Compounds can be decomposed into their constituent elements.

Water Equivalent

The amount of water that would absorb the same amount of heat as the calorimeter per degree temperature increase.

Bond Energy

The amount of energy necessary to break one mole of bonds of a given kind (in gas phase).The amount of energy necessary to break one mole of bonds in a substance, dissociating the sustance in the gaseous state into atoms of its elements in the gaseous state.

Metallic Conduction

Conduction of electrical current through a metal or along a metallic surface.

Solute

The dispersed (dissolved) phase of a solution.

Theoretical Yield

Maximum amount of a specified product that could be obtained from specified amounts of reactants, assuming complete consumption of limiting reactant according to only one reaction and complete recovery of product.

Cloud Chamber

A device for observing the paths of speeding particiles as vapor molecules condense on them to form foglike tracks.

Double Salt

Solid consisting of two co-crystallized salts.

 

Gamma Ray

High energy electromagnetic radiation. A highly penetrating type of nuclear radiation similar to x-ray radiation, except that it comes from within the nucleus of an atom and has a higher energy. Energywise, very similar to cosmic ray except that cosmic rays originate from outer space.

Safranine

Also called "phenosafranine". A purplish-red, water-soluble dye, C18H14N4, used for textiles and as a stain in microscopy.

Outer Orbital Complex

Valence bond designation for a complex in which the metal ion utilizes d orbitals in the outermost (occupied) shell in hybridization.

Associated Ions

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

Composition Stoichiometry

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

Hydrolysis

The reaction of a substance with water or its ions.

Spectrum

Display of component wavelengths (colours) of electromagnetic radiation.

Molar Solubility

Number of moles of a solute that dissolve to produce a litre of saturated solution.

Base

A substance that produces OH (aq) ions in aqueous solution. Strong soluable bases are soluble in water and are completely dissociated. Weak bases ionize only slightly.

Mass Number

The sum of the numbers of protons and neutrons in an atom, an integer.

Lewis Base

Any species that can make available a share in an electron pair.

Evaporization

Vaporization of a liquid below its boiling point.