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.
1 You should harvest all of your potatoes once the vines die (usually by late August), or the potatoes may rot.  Make sure you brush off any soil clinging to the potatoes, then store them in a cool, dry, dark place. The ideal temperature for storage is 35 to 40Â°F.