. "SDN:P07::CF12N475" . "\"Mole concentration\" means number of moles per unit volume, also called \"molarity\", and is used in the construction \"mole_concentration_of_X_in_Y\", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as \"nitrogen\" or a phrase such as \"nox_expressed_as_nitrogen\". The chemical formula for the hydroxyl radical is OH. In chemistry, a \"radical\" is a highly reactive, and therefore short lived, species."@en . . "2" . "false" . . "SDN:P07::CF12N475" . "SDN:P07::CF12N475" . . "accepted"@en . "" . . . "2019-03-04 17:29:46.0" . "2" . . "mole_concentration_of_hydroxyl_radical_in_air"@en . . "2019-03-04 17:29:46.0" .