If a 0.0920 g sample of a 1:1 mixture of 4-nitroaniline and 2-nitroaniline was separated by column chromatography, and the recovered fractions weighed 0.0191 g ( 4-nitroaniline) and 0.0200 g (2-nitroaniline), what was the percent recovery of these two isomers?     20.6%     43.5%     21.7%     42.4%

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Chapter1: Chemical Foundations
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  1. If a 0.0920 g sample of a 1:1 mixture of 4-nitroaniline and 2-nitroaniline was separated by column chromatography, and the recovered fractions weighed 0.0191 g ( 4-nitroaniline) and 0.0200 g (2-nitroaniline), what was the percent recovery of these two isomers?
       
    20.6%
       
    43.5%
       
    21.7%
       
    42.4%
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