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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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figureeights2 figureeights2
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11 years ago
A 0.036M aqueous solution of hypochlorous acid, HOCl, has a pH of 4.63

What is the hydronium ion concentration of the solution?
What is the experimental ionization constant, Ka, for the acid?
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#1
11 years ago
[H+] = 10^-4.63 = 2.34 x 10^-5 M = [OCl-]

[HClO] = 0.036 - 2.34 x 10^-5 =0.036 M

Ka = [H+] [OCl-] / [HClO] = ( 2.34 x 10^-5)^2 / 0.036 =1.5 x 10^-8
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