a. The calculator stopped taking data before the reaction between HCl and MgO was complete. Therefore,
the maximum temperature recorded in the experiment was considerably less than the actual maximum
temperature for that trial.
Magnitude increases Magnitude decreases
Magnitude stays the same Magnitude could increase or decrease
b. The min and max temperatures were recorded in Kelvin for both reactions done in the experiment.
Magnitude increases Magnitude decreases
Magnitude stays the same Magnitude could increase or decrease
2. What gas was liberated during the experiment today? What is the standard enthalpy of formation for
that gas?
3. Calculate the percent error in the enthalpy of formation of MgO determined in your experiment. The
literature value is -601.8kJ/mol.
Attachments:
Expt-11-Postl….pdf
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