QUESTION 4 1 po The rate of distillation for both simple and fractional distilla

Question

QUESTION 4 1 po The rate of distillation for both simple and fractional distillation should be no faster than- O 1 drop per second 15 drops per hour O2 drops per minute O 1 drop per minute QUESTION 5 1 po Both the simple and the fractional distillation should be stopped when 0 there is approximately 0.4 mL left in the round-bottomed flask. there is approximately 1 /2 the original amount of liquid left in the round-bottomed flask. O approximately 1.6 mL of distillate has been collected Othere is no liquid left in the round-bottomed flask. QUESTION 6 1 po What is "column holdup*? 0 It is the time it takes for the first drop of distillate to form, measured from when the liquid first began to boil. 0 It is the amount of liquid that condenses on the walls (and packing) of the distillation apparatus and does not distill over as part of the distillate and also does not run back into the bottom of the flask as part of the pot residue. lt is the equipment used, such as ring stands and clamps to keep the apparatus from falling over during the distillation. 1 po QUESTION 7 The barometric pressure should be when performing a distillation because

Explanation / Answer

Multiple choice

4. the rate of distillation for both simple and fractional systems should not be more than,

1 drop per second

5. Both the simple and fractional disitllation must be stopped when,

there is 0.4 ml liquid left in the distillation flask

6. column holdup is,

It is the time taken for the first drop to form, measured form when the liquid first begins to boil.

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