Pre-Lab/ln-Lab Assignment: 1. Copy the following table into your lab notebook. For each of the common orginic substasces liated, draw the structure, fill in the boiling temperature (in C), the molar mass (ia g mol) and he fuasticeal groups prevent. 2. The relention times of each substance are listed in the groph ahore. a) Discuss the retention times of the six mubitances with regard to their mobecular weights. Deieribe any pattem that emerges and propose an explanation. b) Discuss the retention times of the six subitunses with repard to their boiling points. Describe any pattern that enerees and propose an explanation. c) Discuss the retentios times of the six subitances with scgard to their functional groups. Deserite any pattern that emerges and propose an explanation. 3. The mass speetn of ethanol is litited belorw. Identify the labeled peaks. Draw struetures for each of the indicated mz values