92. Solving a chemistry problem
Seller: Derkach
Price: 1.18 USD
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Product description
- Up to 2.0% nitrobenzene remains in the spent nitrating mixture after distillation with water vapor. What amount of nitrobenzene can be extracted from 1 m3 of such a mixture by extraction with benzene (K-1.0*10-5) at an extractant consumption in a volume ratio to the mixture of 1/5 and an effective number of extraction stages equal to A) 1.0 B) 2.0 B) 3.0
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