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The increase in the boiling point of a solvent caused by the dissolution of a nonvolatile solute.

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Periodic Law

The properties of the elements are periodic functions of their atomic numbers.

Nitrogen Cycle

The complex series of reactions by which nitrogen is slowly but continually recycled in the atmosphere, lithosphere and hydrosphere.

 

xanthate

A salt or ester of xanthic acid. Many xanthates have a yellow color. Xanthates are used as flotation agents in mineral processing.

Surface Tension

It is the force in dynes acting along the surface of the liquid 1cm in length and perpendicular to it.

Hydrophilic Colloids

Colloidal particles that repel water molecules.

Distilland

The material in a distillation apparatus that is to be distilled.

Chemical Kinetics

The study of rates and mechanisms of chemical reactions and of the factors on which they depend.

Heat of Solution

The amount of heat absorbed in the formation of solution that contains one mole of solute, the value is positive if heat is absorbed (endothermic) and negative if heat is released (exothermic).

Quantum Numbers

Numbers that describe the energies of electrons in atoms, derived from quantum mechanical treatment.

Water Equivalent

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