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9. (25pts) Consider the titration of 25 mL of 0.150 NHs with 0.250 M HCL. Calculate the pH of the solution a) before any acid has been added, b) any volume before the equivalence point, c) at ½ the equivalence point d) at the equivalence point, and e any volume after the equivalence point.
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Sol 4.14 ma base = 4-14 +logo·0416チー4.4 0 083 33 4-47y-1ag0.og3S

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