Calculate: (a) \( \mathrm{K}_{\mathrm{a}} \) for a monobasic acid whose \( 0.10 \mathrm{M} \) so...

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Calculate:
(a) \( \mathrm{K}_{\mathrm{a}} \) for a monobasic acid whose \( 0.10 \mathrm{M} \) solution has \( \mathrm{pH} \) of \( 4.50 \)
\( P \)
(b) \( \mathrm{K}_{\mathrm{b}} \) for a monoacidic base whose \( 0.1 \mathrm{M} \) solution has a \( \mathrm{pH} \) of \( 10.50 \)
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