answer question 4 and 5 ? ics, 94th ed. CRC Press: Boca Raton, FL, 2013. analysi

Question

answer question 4 and 5 ?

ics, 94th ed. CRC Press: Boca Raton, FL, 2013. analysis of the product showed that the compound was pure, and a calibra of the thermometer indicated that it was accurate. What procedural error might the student have made in setting up the distillation apparatus? 4. The directions in an experiment specify that the solvent, diethyl ether, be removed from the product by using a simple distil- lation. Why should the heat source for this distillation be a steam bath, not an electrical heating mantle? 5. The boiling point of a compound is 300°C at atmospheric pressure. Use the nomograph (Figure 12.22) to determine the pressure at which the compound would boil at about 150°C.

Explanation / Answer

4) Diethyl ether boiling point is less (36.40C), so in distillation process steam bath (heat source) is enough to achieive this temparature and remove this solvent from reaction mixture.

5) 7.0 mmofHg

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