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May 27, 2015

Homework Help: college chemistry

Posted by Aubree on Wednesday, April 21, 2010 at 5:58pm.

Suppose you have a 0.200 M solution of the nitrogen-containing weak base NX. Suppose you wish to titrate 25 mL of this 0.200 M NX solution with a 0.100 M solution of the strong acid HNO3. Given that the Kb value of NX is 6.50x10-5, complete each of the following:
a) What volume of HNO3 solution (in mL) will be required to reach the equivalence point of this titration?
b) What will be the pH of the solution at this point?
c) What will be the pH of the solution after addition of of the required HNO3?
d) What will be the pH of the solution after addition of 75.0 mL of HNO3?

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