In the empty boxes, provide any missing starting materials, reagents or productsto complete the transformationsas described in the equations below. If more than one stepisrequired to accomplish the transformation, specifythe order in which reagents must be added.

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?