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A unit of pressure, the pressure that will support a column of mercury 760 mm high at 0 °C.

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Colligative Properties

Physical properties of solutions that depend upon the number but not the kind of solute particles present.

Osmotic Pressure

The hydrostatic pressure produced on the surface of a semipermable membrane by osmosis.

Isoelectric

Having the same electronic configurations.

yttria

Y2O3: A white, water-insoluble powder, Y2O3, used chiefly in incandescent gas and acetylene mantles.

Denaturation

A process pertaining to a change in structure of a protein form regular to irregular arrangement of the polypeptide chains.

Solute

The dispersed (dissolved) phase of a solution.

Acid

A substance that produces H+(aq) ions in aqueous solution. Strong acids ionize completely or almost completely in dilute aqueous solution. Weak acids ionize only slightly. Chemicals or substances having the property of an acid are said to be acidic.

Physical Change

A change in which a substance changes from one physical state to another but no substances with different composition are formed. Example Gas to Liquid - Solid.

 

Avogadro's Law

At the same temperature and pressure, equal volumes of all gases contain the same number of molecules.

Exothermic

Describes processes that release heat energy.