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A compound distributes between benzene (solvent 1) and water (solvent 2) with a distribution coefficient, K...

A compound distributes between benzene (solvent 1) and water (solvent 2) with a distribution coefficient, K = 2.7. If 1.0g of the compound were dissolved in 100mL of water, what weight of compound could be extracted by THREE sequential 10-mL portions of benzene?

What weight of compound could be extracted if ONE 30-mL portion of benzene were used.

If the distribution constant, K were 0.5, for the distribution of a compound between benzene (solvent 1) and water (solvent 2), and equal volumes of the two solvents are used, how much compound will be left in the water after the three extractions.

Solutions

Expert Solution

Total compound extracted in 3 lots = 0.21 + 0.17 + 0.132 = 0.512 g.

If K = 0.5 and equal volumes of benzene and water are used, then equal amounts of compound will be extracted i.e. 0.5 g.

queen_honey_blossom answered 2 years ago
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