Answer: You interconvert any two groups on the chiral carbons. Explanation: For example, the structure of 2-brombutane is. We can convert this to its enantiomer by interchanging any two groups. We often interchange the groups on the wedges and dashes, as below. It is not immediately obvious that these are mirror images of each other. If we rotate the top structure 180 Â° about the axis and put it below our original structure, we get
In general, the optimum, long-term storage temperature for processing potatoes is approximately 45Â° F. For fresh market potatoes, a temperature of 40Â° F. is recommended. Seed potatoes may be stored at slightly lower temperatures (38Â° to 40Â° F.) for better weight loss and sprout control.
How long do sweet potatoes last? The precise answer to that question depends to a large extent on storage conditions - after purchasing, keep sweet potatoes in a dry, dark area. Properly stored, raw sweet potatoes will last for 1 to 2 weeks at normal room temperature. To maximize the shelf life of sweet potatoes, store in a cool (45-55Â° F; warmer than the refrigerator, but colder than normal room temperature) dark area; under those storage conditions, sweet potatoes will last about 1 month.