Chemistry Distillation Questions
The components of an 80-mL rubbing alcohol sample were separated using distillation and the resulting percent recovery of isopropyl alcohol is 14.70%. Determine the volume, in mL, of isopropyl alcohol present in the sample.
a. 11.23 mL
b. 11.86 mL
c. 11.76 mL
d. 12.45 mL
If the first 1 mL distillate is not removed, there will be a/an __________ in the purity and __________ in the percent yield.
a. Decrease; no effect
b. No effect; increase
c. Decrease; decrease
d. Decrease; increase
Which of the following is FALSE regarding a distillation set-up?
a. The water around the condenser is kept cool to increase recovery.
b. Boiling chips are placed in the distilling flask.
c. The water outlet is located closer to the receiving flask.
d. The first twenty drops of the distillate are discarded.