Question: When 10.1 g CaO is dropped into a styrofoam coffee cup containing 157 g H2O at 18.0C, the temperature rises to 35.8C. Calculate the

When 10.1 g CaO is dropped into a styrofoam coffee cup containing

When 10.1 g CaO is dropped into a styrofoam coffee cup containing 157 g H2O at 18.0C, the temperature rises to 35.8C. Calculate the enthalpy change of the following reaction in kJ/mol CaO. Assume that the cup is a perfect insulator and that the cup absorbs only a negligible amount of heat? (the specific heat of water = 4.18 J/g.C) Cao (s) + H2O (l) Ca(OH)2 (s)

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