What is the mass of the molecular ion formed from the compound having the molecular formula, c11h15no2 (mdma)? calculate your answer to the nearest whole number. enter your answer in the provided box.

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Most metamorphosis processes take place

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?