What is the \( \mathrm{pH} \) at equivalence point when \( 20 \mathrm{ml} \) of \( 0.20 \mathrm{...
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What is the \( \mathrm{pH} \) at equivalence point when \( 20 \mathrm{ml} \) of \( 0.20 \mathrm{M} \) ammonia is titrated against \( 0.1 \mathrm{M} \) hydrochloric acid? \( \mathrm{K}_{b} \) for ammonia is \( 1.8 \times 10^{-5} \) ?
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