Before going to lab, a student read in his lab manual that the percent yield for a difficult reaction to be studied was likely to be only 17% of the theoretical yield. The student's prelab stoichiometric calculations predict that the theoretical yield should be 52.00 g. What is the student's actual yield likely to be?

Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?