Consider the reaction: Fe3+(aq) + SCN−(aq) ⇌ Fe(SCN)2+(aq)A mixture is prepared with initial Fe3+ and SCN- concentrations of 0.3 M and 0.005 M, respectively. Given that the product concentration at equilibrium is 0.00494 M, calculate the equilibrium constant Keq.

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?