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If the distribution ratio for substance A is 9.0，what is the minimum number of the 5.00mL portions o

f ether that must be used in order to extract 99.9% of substance A from 5.00mL of arl aqueous solution that contains 0.0400g of substance A？ What weight of substanceA is removed with each extraction？

提问人：网友anonymity 发布时间：2022-01-06

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