General chemistry

General chemistry

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General chemistry

Redox indicator

Chemistry; General chemistry

An organic molecule that has reduced and oxidised forms with different colors; interconversion of the reduced and oxidised forms of the indicator must be reversible. Ferroin is an example.

Reducing agent

Chemistry; General chemistry

A reducing agent is a substance that reduce another substance by supplying electrons to it. Reducing agents cause other substances to be reduced in chemical reactions while they themselves are ...

A family of pigments that give flowers, fruits, and leaves of some plants their red or blue coloring. Anthocyanins consist of sugar molecules bound to a benzopyrylium salt (called anthocyanidin). See ...

Fatty acid

Chemistry; General chemistry

Fatty acids are carboxylic acids with long hydrocarbon side chains. Most natural fatty acids have hydrocarbon chains that don't branch; any double bonds occuring in the chain are cis isomers (side ...

Organochromic indicators

Chemistry; General chemistry

Coloured organic compounds that change colour when they chelate different metals. Organochromic indicators are used to determine the endpoint in complexometric titrations . Examples of ...

Colorimetry

Chemistry; General chemistry

A method for chemical analysis that relates colour intensity to the concentration of analyte .

Ionic bond

Chemistry; General chemistry

An attraction between ions of opposite charge. Potassium bromide consists of potassium ions (K+) ionically bound to bromide ions (Br-). Unlike covalent bonds, ionic bond formation involves transfer ...