Substance Identification Lab
Subject:
Chemistry [1]
Lab 6-1 Catherine Puga Paradichlorobenzene has a very strong odor while potassium iodide does not. PDCB(paradichlorobenzene) is more volatile then potassium iodide. Volatile means that the molecular substance can evaporate easily and when it evaporates, it lets off a strong smell. A substances ability to evaporate depends on the strength of its bonds. Potassium iodide had ionic bonds whereas PDCB has London Dispersion Forces. LDF?s are the weakest type of intermolecular bonds; therefore, PDCB evaporates easier so it has a stronger odor.