Help please : The amount of energy needed to heat 5.3 g of a substance from 50.0°C to 80.0°C is 10.4 J. What is the specific heat capacity of this sample?

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?