Friday
April 25, 2014

Homework Help: Chemistry - Equilibrium

Posted by Martha on Wednesday, April 25, 2012 at 3:11pm.

You have an unknown concentration of ammonia. When you add 15.0mL of a 0.400 M HCl solution to 50.0mL of the ammonia solution, the pH of the solution becomes 8.75. What is the concentration of the original ammonia solution? [Kb (NH3) = 1.8 x 10^-5]

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