28. Решение задачки по химии №14

4. At 298 K, a solution containing 10.53 g/l of phenol (C6H5OH) in amyl alcohol is in equilibrium with an aqueous solution containing 0.658 g/l of phenol. What weight amount of phenol will be obtained from 0.5 l of an aqueous solution with a concentration of 0.4 mol/l by double extraction with amyl alcohol? For each extraction, 0.1 l of amyl alcohol is taken.

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