[VISUAL] The structural formulas of glycerol and trichloropropane are given above. Both compounds ar — Intermolecular Forces Chemistry Question

Each substance has intermolecular London dispersion forces and dipole-dipole forces. Glycerol also has hydrogen bonding. The presence of hydrogen bonding in glycerol results in the total intermolecular forces in glycerol being stronger than the total intermolecular forces in trichloropropane.

1 point is earned for identifying the IMFs in each liquid.
1 point is earned for a correct explanation.

q_H₂O = m * c * ΔT = (500.0 g) * (4.184 J/(g·°C)) * (100.0°C - 20.0°C) = 167,000 J = 167 kJ

-q_H₂O = q_comb
-167 kJ * (1 mol glycerol / -1654 kJ) * (92.09 g glycerol / 1 mol glycerol) = 9.30 g glycerol

1 point is earned for a correct calculation of q.
1 point is earned for the correct mass of glycerol.