Use the calorimetric data provided in Lab Exercise 11.B on page 506 in the textbook to find a molar enthalpy of combustion for pentane in kJ/mol.
Ignore sig digs in this case and state your answer to the nearest kJ/mol.
Evidence:
mass of pentane reacted = 2.15 g
mass of water equivalent to calorimeter = 1.24 kg
initial temperature of calorimeter and contents = 18.4 degrees C
final temperature of calorimeter and contents = 37.6 degrees C