How many grams of nicotine (C10H14N2) are in a 0.125 mol sample of nicotine?

What is the polyatamic ion of borate

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?

Is 343 in the sequence -5, -2, 1, 4, 7