Chemistry 2210A/B Lecture Notes - Lecture 7: Total Organic Carbon, Chromate And Dichromate, Royal Aircraft Factory F.E.2
1 Jan 2017
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)n (cid:884)(cid:882)(cid:882)(cid:882), 9(cid:882)% of the world"s population had a relative sufficiency of clean water. Acid-base and solubility reactions: solubility is dependent on ph, control concentrations of dissolved inorganic ions, ph mainly controlled by dissolution of atmospheric co2 to form carbonic acid. Oxidation-reduction (redox) reactions: organic content in water will be oxidizable, controls concentrations of organic content in water, many redox processes involve oxygen. Units for water chemistry (cid:498)parts per __(cid:499); ratio of mass of solute to the mass of the solution: different than for gas phase parts per were done atom for atom. Mass of (cid:883) l of water (cid:883) kg (cid:523)density(cid:524) Ppb = g solute/kg solution: or /l. Oxygen has to dissolve if its oxidizing agent. Volatile substances that are dissolved in water can eventually evaporate: eventually the gaseous component will come out water. Evaporation of a voc and its dissolution they will reach equilibrium. Substances present in air can dissolve in water.
