lab 7
howard r. kletke (107744.2473@compuserve.com)
Wed, 5 Mar 1997 22:59:01 -0500
Question: During the evaporation procedure in lab 7, the book
emphasizes the importance of being careful not to continue the evaporation
beyond the point where all the methylene chloride has evaporated, or the
sample could be lost. Are there visible signs of when the stopping point
of the evaporation should be?
-Monica