6.7 At 298 K, a solution containing 10.53 g/L of phenol 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 37.6 g/L by double extraction with amyl alcohol? For each extraction, 0.1 L of amyl alcohol is taken.

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