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The pH of a 0.400 M solution of iodic acid, HIO3, is 0.726 at 25 C. What is the Ka at this temperature?
The pH of a 0.400 M solution of iodic acid, HIO3, is 0.726 at 25 C. What is the Ka at this temperature?
-
HIO3 ---------------> H+ + IO3-
0.400 pH = 0.726
Since the pH is 0.726 then 10^-.726 = 0.1879 mol/L This is also tru for the Conc of the IO3- ion
Ka = (0.1879)^2/ 0.400
Ka = 8.83 x 10^-2
0.400 pH = 0.726
Since the pH is 0.726 then 10^-.726 = 0.1879 mol/L This is also tru for the Conc of the IO3- ion
Ka = (0.1879)^2/ 0.400
Ka = 8.83 x 10^-2