In the winter of 1994, record low temperatures were registered throughout the United States. For example, in Champaign, Illinois, a record low of 229˚F was registered. At this temperature can salting icy roads with CaCl2 be effective in melting the ice? Assume the average value of i below (The solubility of CaCl 2 in cold water is 74.5 g per 100.0 g water.)
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