Use the followirfg information to answer the questions below:

In a titration of $100\mathrm{.}0mL$ of $0\mathrm{.}100M$ hydrazine $-$ abbreviate as $B$ and $B{H}^{+}$for the base and conjugate acid pair$)$ by $0\mathrm{.}200MHN{O}_3.$ Calculate the $pH$ of the resulting solutions after the following volumes of $HN{O}_3$ have been added. $K_b=3\mathrm{.}0{10}^{-6}$

a$)$ At what volume does the equivalence point occur at$?($Hint: Use $M_1{V}_1=M_2{V}_2)$

b$)$ Sketch a generic, representative titration curve for the reaction. Mark key points like the equivalence point $(V_e),\frac{1}{2}Ve.$

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