How many atoms of iron are in one formula unit of iron (iii) chloride

How many grams of oxygen gas are contained in a 15 l sample at 1.02 atm and 28°c? show your work.

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.

How many moles are in 43.9 l of oxygen