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November 20, 2014

November 20, 2014

Posted by **Brian** on Tuesday, April 30, 2013 at 4:06pm.

(a) [H+] ____?______M

(b) pH _____??______

(c) percent ionization ______?______%

- Chemistry -
**DrBob222**, Tuesday, April 30, 2013 at 4:28pmI don't think it wise to write the Ka for H2cO3 as 4.4E-7 because it has TWO ionization constants. It is correct to write k1 = 4.4E-7.

...........H2CO3 ==> H^+ + HCO3^-

I.........3.3M.......0.......0

C.........-x.........x.......x

E.........3.3-x.......x......x

k1 = 4.4E-7 = (H^+)(HCO3^-)/(H2CO3)

Substitute into k1 exprsession and solve for x = (H^+) and convert that to pH.

% ion = [(H^+)/(H2CO3)]*100 = ?

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