ASAP PLZ HELP Determine the number of moles contained in 1.35x10^28 molecules of oxygen gas (O2).

please don't put a link as an answer!!!

Which element is least likely to undergo a chemical reaction

How many moles of oxygen gas are produced from the decomposition of six moles of potassium chlorate

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?