Use your molecular modeling kit to determine the absolute configurations of the following compounds. Clearly define each stereocenter as either (R) or (S). If the molecule does not have a stereocenter write "achiral" next to it. (For extra UNGRADED practice, you could name these compounds fully after class. For lab ONLY the stereochemical information is needed.)

Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]