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AP Chem. Bomb Calorimetry

  1. Oct 1, 2007 #1
    1. The problem statement, all variables and given/known data
    A 10.2 g sample of CaCl2 is dissolved in 103 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C·g.

    2. Relevant equations
    Heat evolved= (Specific heat capacity)(Mass of solution)(Change in Temp)

    3. The attempt at a solution
    -81.5=(4.18J/C x g)(mass of soln, which I cannot calculate)(Tf-25C)

    I worked out the mass of soln in the book problem to be 1.373. Their measurements were 11g CaCl2 and 125g H2O but the rest is the same.
  2. jcsd
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