Chemistry 2210A/B Lecture Notes - Lecture 4: Acid Rain, Fly Ash, Carbonate Rock

• School: Western University
• Department: Chemistry
• Course: Chemistry 2210A/B
• Professor: Keith Griffiths

Document Summary

Due to small water droplets which contain pollutant particles. Particles of diameter 0. 4 to 0. 8 m scatter light . reflecting it in random directions. Haze produced from a high concentration of particles with diameters between 0. 1 m and 1. M: have the best potential to produce a hazey looking atmosphere. Polluted atmosphere tends to look hazey not cloudy. Natural rain is acidic due to dissolved co2 carbonic acid. Ph of natural rain water is about 5. 6. True (cid:498)acid rain(cid:499) has a ph of less than 5: as a result of pollution, mainly in industrial areas (ph of 2-4) Many other acids (and bases) can contribute to the ph of natural rain. Primary pollutants are so2 and no both strong acids, 100% ionization. Result from oxidation of so2 and no primary pollutant. Not all (cid:498)acid(cid:499) on earth is the result of rainfall. Some atmospheric so2 is deposited directly on land by dry deposition.