.Calculate the mole fraction of each component in a solution of 2.50 mol ethanoic acid (CH, COOH)
in 10.00 mol of water

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

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 123.0 grams of kclo4?