General chemistry

General chemistry

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General chemistry

Racemic

Chemistry; General chemistry

A mixture of equal parts of the levorotatory and dextrorotatory isomers of the the same substance. Racemic mixtures are not optically active .

Enthalpy of solution

Chemistry; General chemistry

The heat absorbed or released when a solute is dissolved in a solvent . The heat of solution depends on the nature of the solute and on its concentration in the final solution .

Nonpolar molecule

Chemistry; General chemistry

A molecule in which the centre of positive charge and the centre of negative charge coincide. Examples are CCl4 and CO2; counterexamples are CHCl3 and H2O.

A plot that summarises data collected in a titration . A linear titration curve plots moles of analyte (or, some quantity proportional to moles of analyte) on the Y axis, and the volume of titrant ...

Carotene

Chemistry; General chemistry

Carotene is an unsaturated hydrocarbon pigment found in many plants. Carotene is the basic building block of vitamin A.

Incomplete octet

Chemistry; General chemistry

1. An atom with less than eight electrons in its valence shell. 2. An atom with less than eight total bonding and nonbonding electrons in a Lewis structure, for example, B in BH3 has an incomplete ...