Thermochemistry : Hess’ Law

DISCUSSION

In this experiment, you will measure the enthalpy of neutralization for hydrochloric acid
both with aqueous sodium hydroxide and with solid sodium hydroxide. You will also measure
the enthalpy of solution when solid sodium hydroxide is dissolved in water. From the results
you will verify Hess' Law.
You will use two simple calorimeters, each one made from four plastic foam cups, and you
will also need two thermometers. Note the diagram below that illustrates a cross section of
the apparatus

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