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Physics, 05.10.2019 03:00 carcon2019

Hrxn = -m csystem δt

0.7180 ± 0.0002 g of kno3 was added to 100.00 ± 0.02 g of h2o in a solution calorimeter.

csystem = 121.46 ± 1.23 cal/°c and δt = -0.508 ± 0.009 °c.

(a) (1 pt) calculate the molar enthalpy change δh~rxn for the dissolution of kno3 in water.

(b) (2 pts) calculate in the error in δh~

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Hrxn = -m csystem δt

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