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Thread: Thermochemistry problems

  1. #1 Thermochemistry problems 
    New Member
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    Oct 2006
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    Could anyone please help me with the following tasks? Or perhaps give some hints on how to solve them? I would really appreciate it!

    * Decide through calculations whether disolution of NH4NO3(s) in water is an exothermic or endothermic process

    * Calculate the Equilibrium Constant for NH4NO3(s) = NH4+(aq) + NO3-(aq) at 25 degrees C. Is NH4NO3(s) soluble or hard to dissolve?

    Thanks a lot!


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  3. #2 Re: Thermochemistry problems 
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    Quote Originally Posted by Jocce
    Could anyone please help me with the following tasks? Or perhaps give some hints on how to solve them? I would really appreciate it!

    * Decide through calculations whether disolution of NH4NO3(s) in water is an exothermic or endothermic process
    I remember that in inorganic chemistry I used the Born-Haber cycle to make entalpic calculations for ionic salts.
    And although I could not calculate absolute solubilities yes I could make relative calculations.

    good luck


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