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6. (a) Sketch the distribution diagram for the H₂S-water system, given that H₂S is a dibasic acid and Kal = 5.7 x 108 an
Posted: Fri May 06, 2022 7:33 am
by answerhappygod
- 6 A Sketch The Distribution Diagram For The H S Water System Given That H S Is A Dibasic Acid And Kal 5 7 X 108 An 1 (27.3 KiB) Viewed 39 times
6. (a) Sketch the distribution diagram for the H₂S-water system, given that H₂S is a dibasic acid and Kal = 5.7 x 108 and K₁2 = 1.3 x 10-13. What sulphur species will exist in natural waters? (b) The fraction of hydrogen carbonate ion in water in the CO2-water system, a(HCO3), is given by the expression: a(HCO3) = Kat|H| [H]2+ Kal[H*] + KaiKaz Where Kat 4.45 x 107 and Ka2=4.69 x 10¹¹ at 25°C. (i) Calculate a(HCO3) for pH 2, 8 and 14 (show each calculation). (ii) What is the significance of each of the values calculated in (i) in terms of [HCO3]?