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The absolute entropy of a substance in its standard state at 298 K.

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Isoelectric

Having the same electronic configurations.

Aryl Group

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

Dumas Method

A method used to determine the molecular weights of volatile liquids.

Differential Scanning Calorimetry (DSC)

A technique for measuring the temperature, direction, and magnitude of thermal transitions in a sample material by heating/cooling and comparing the amount of energy required to maintain its rate of temperature increase or decrease with an inert reference material under similar conditions.

Freezing Point Depression

The decrease in the freezing point of a solvent caused by the presence of a solute.ing Point

Basic Anhydride

The oxide of a metal that reacts with water to form a base.

Detergent

A soap-like emulsifer that contains a sulfate, SO3 or a phosphate group instead of a carboxylate group.

Interesting facts about metals

Metals have been used by people since ancient times. All the time the process of obtaining them was improved, useful alloys of various metals appeared. Let’s look at interesting facts about metals.

Mass

A measure of the amount of matter in an object. Mass is usually measured in grams or kilograms.

Dispersing Medium

The solvent-like phase in a colloid.