The actual molar enthalpy of solution (?H/moles of salt) for calcium chloride is -81.3 kJ/mol, whereas the molar enthalpy of solution of ammonium chloride is 14.8 kJ/mol. Calculate the average molar enthalpy of solution for each compound based on your data, and then calculate the percentage error for calcium chloride and ammonium chloride using your calculated average. Do not calculate the percent error for each mass.

Percent error is (|Actual - Experimental|/Actual) * 100%

pur-new-sol