(Solved): #38 Calculate the \( \mathrm{pH} \) at the equivalence point in titrating \( 0.082 \mathrm{M} \) sol ...

Calculate the \( \mathrm{pH} \) at the equivalence point in titrating \( 0.082 \mathrm{M} \) solutions of each of the following with \( 0.071 \mathrm{M} \mathrm{NaOH} \). (a) nitric acid \( \left(\mathrm{HNO}_{3}\right) \) \[ p H= \] (b) carbonic acid \( \left(\mathrm{H}_{2} \mathrm{CO}_{3}\right), \mathrm{K}_{\mathrm{a}}=4.3 \mathrm{e}-07 \) \[ \mathrm{pH}= \] (c) hypochlorous acid \( (\mathrm{HClO}), \mathrm{K}_{\mathrm{a}}=3 \mathrm{e}-08 \) \[ p H= \]