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    1) Why is the magnitude of the lattice enthalpy of three Group halids decreasing in the order NaF > NaCl > KCl?

    2) Butan-1-ol was converted into butyl propanoate by the reaction with an excess of propanoic acid. In the reaction, 6.0g of the alcohol gave 7.4g of the ester the percentage yield of ester was...

    A) 57
    B) 70
    C) 75
    D) 81

    (would appreciate the method with the answer for this question)

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Updated: June 11, 2005
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