Question- In a preparation of 2-butanone 2,4-dinitrophenylhydrazone, calculate the amount of reagent to be weighed out from a bottle of (70% 2,4-DNP/30% H2O) if it is reacted with 4.14g of 2-butanone and a 1.4 molar excess of the 2,4-DNP is required.
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