an organic chemistry student dissolved .095g of a crude product in 3.5ml(the minimum amount required) of ethanol at 25 C. He cooled the solution in an ice-water bath for 15 minutes and obtained beautiful crystals. he filtered the crystals on a hirsh funnel and rinsed them with about .5ml of ice cold ethanol. after drying the weight of the crystals was .005g. why was the recovery so low?
2007-03-03 19:26:48 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
I suggest that the ethanol should have been much hotter than 25C at first. The difference in solubility between that temperature and in the ice-bath would not have been great.
2007-03-03 19:46:56 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋
good it
2007-03-03 20:43:18 · answer #2 · answered by Rivana 1 · 0⤊ 0⤋
no
2007-03-03 19:34:59 · answer #3 · answered by Night Shift 1 · 0⤊ 1⤋