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July 30, 2014

Homework Help: chemistry

Posted by Anonymous on Monday, May 6, 2013 at 10:37am.

The pKb of ammonia solution, NH3(aq) is 4.76. A buffer solution contains NH4Cl and NH3, has a pH of 9.45, and a total ammonia concentration (all forms) of 0.400 M. What is the concentration of NH4+?
(Hint: [NH4+] + [NH3] = 0.400 M)

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