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Surface water in an open area of the Indian Ocean adjacent to Kenya has an alkalinity of 2320 µmol L-1 and a total carbonate concentration of 2.03 x 10-3 mol L-1. Calculate the concentrations of HCO3- and CO32-, and also the pH of this sea water.
**"Total carbonate concentration" = [CO2(aq)] + [HCO3-] + [CO32-]. You can ignore the [OH-] and [H3O+] terms in the alkalinity calculation - explain why this is reasonable.
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(a) 0.519 M acetic acid (weak acid with Ka = 1.8e-05). (b) 0.802 M hydrocyanic acid (HCN) (weak acid with Ka = 4.9e-10). (c) 0.693 M pyridine (weak base with Kb = 1.7e-09).
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Crystallization of sodium acetate from a supersaturated solution occurs spontaneously at constant temperature and pressure. What can you deduce about the signs of ?S and ?H for this process?
Draw all of the products of the second propagation step in the free-radical bromination of 2,3-dimethylbutane including inorganic
Cumene, a hydrocarbon, is a compund composed only of C and H. It is 89.94% carbon, and its molar mass is 120.2 g/mole. What are the empirical and molecular formulas of cumene
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