Posted by Maria on Thursday, April 29, 2010 at 1:05pm.
At what temperature do you wish to start? That will be dictated partially by the melting point of compound A as well as the boiling point of n-propanol. For example, (but you don't want to use this one), if we use the 100 C data,
100 mL x (80/160) = 50 mL. However, you don't want to use this one because n-propanol boils < 100 C. In fact, if you will look at the data, every possible answer is there using the formula,
100 mL x (80/table value) = ??
Therefore,
100 mL x 80/160 = 50 mL
100 mL x 80/100 = 80
100 mL x 80/60 = 133
100 mL x 80/20 = 400
etc.
Look at your notes and in the lab preparation material, as well as the melting point of compound A to make your choice.
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