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A 25.0 mL volume of a 0.200 M N2H4 solution ( K b = 1.70×10 - 6) is titrated to the equivalence point with 0.100 M HCl. What is the pH of this solution at the equivalence point?
The titration is:
N2H4 + HCl→N2H5+ + Cl -
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