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A small, calibrated electroscope worn by laboratory personnel and designated to detect and measure incident ionizing radiation or chemical exposure.

Latest Articles

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    It's getting close to New Years and many people are starting to think about how to lose those extra pounds they managed to gain over the holidays. There are many sorts of diets and fads that have developed over the years from cutting carbs to cutting protein. Everyone has their own opinion as to...

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Percent Purity

The percent of a specified compound or element in an impure sample.

Indicators

For acid-base titrations, organic compounds that exhibit different colors in solutions of different acidities, used to determine the point at which reaction between two solutes is complete.

Suspension

A heterogeneous mixture in which solute-like particles settle out of solvent-like phase some time after their introduction.

Colloid

A heterogeneous mixture in which solute-like particles do not settle out.

Dispersing Medium

The solvent-like phase in a colloid.

Formula

Combination of symbols that indicates the chemical composition of a substance.

 

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).

Autoionization

An ionization reaction between identical molecules.

Bonding Orbital

A molecular orbit lower in energy than any of the atomic orbitals from which it is derived, lends stability to a molecule or ion when populated with electron.

Electron Deficient Compounds

Compounds that contain at least one atom (other than H) that shares fewer than eight electrons.