Calculate the molar enthalpy change hrxn for the


0.7180 ± 0.0002 g of KNO3 was added to 100.00 ± 0.02 g of H2O in a solution calorimeter.

(a) Calculate ?Hrxn if Csystem = 121.46 ± 1.23 cal/°C and ?T = -0.508 ± 0.009 °C.

(b) Calculate the error in ?Hrxn.

(c) Calculate the molar enthalpy change ?H~rxn for the dissolution of KNO3 in water.

(d) Calculate in the error in ?H~

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Chemistry: Calculate the molar enthalpy change hrxn for the
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