A pencil line is drawn, and spots of ink or plant dye are placed on it. There is a container of solvent, such as water or ethanol. A pure substance will only produce one spot on the chromatogram ...
WHILE, so far, the spot test on filter paper, developed by Dr. F. Feigl and his co-workers, has been used exclusively for qualitative purposes, we have discovered a method for the estimation of ...
You will complete eight required core practical activities if you are studying GCSE Chemistry, and 18 if you are studying GCSE Combined Science (five of these are in Chemistry). You could be asked ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback