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Amount of a specified pure product actually obtained from a given reaction. Compare with Theoretical Yield.

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Actual Yield

Amount of a specified pure product actually obtained from a given reaction. Compare with Theoretical Yield.

Activity of a component of ideal mixture

A dimensionless quantity whose magnitude is: equal to molar concentration in an ideal solution, equal to partial pressure in an ideal gas mixture, and defined as 1 for pure solids or liquids.

Mixture

A sample of matter composed of two or more substances, each of which retains its identity and properties.

Noble Gases (Rare Gases)

Elements of the periodic Group 0, also called rare gases, formerly called inert gases, He,Ne,Ar, Kr, Xe, Rn.

ytterbium

A rare metallic element found in gadolinite and forming compounds resembling those of yttrium. Symbol: Yb, at. wt.: 173.04, at. no.: 70, sp. gr.: 6.96. Cf."rare-earth element."

 

Standard Molar Volume

The volume occupied by one mole of an ideal gas under standard conditions, 22.4liters.

Hydration

Reaction of a substance with water.

Hydrogen Bond

A fairly strong dipole-dipole interaction (but still considerably weaker than the covalent or ionic bonds) between molecules containing hydrogen directly bonded to a small, highly electronegative atom, such as N, O, or F.

Electrolysis

Process that occurs in electrolytic cells.

Aryl Group

Group of atoms remaining after a hydrogen atom is removed from the aromatic system.