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I don't understand this question, thanks to whoever tries to help!!

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  • Chemistry -

    heat gained by calorimeter = mass H2O x specific heat H2O x (Tfinal-Tinitial) = estimated 30100 J.
    heat lost by NaAc crystals = 200 x Hf
    set these equal to each other and solve for Hf. Remember it is exothermic so add a negative sign.

  • Chemistry -

    thanks you really helped a lot!!

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