Answer to Question #153310 in Physical Chemistry for Harri

Question

What is i) a standard solution? ii)a reduction-oxidation (redox) reaction?

Answer 1

i) A standard solution is a solution of exactly known concentration prepared from a primary standard (a compound which is stable, of high purity, highly soluble and of a high molar mass to allow for accurate weighing).

ii) A redox reaction is a type of reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing electrons.