How many moles of each ion are in each solution? (a) 2 mol of potassium perchlorate dissolved in water K+ mol ClO4- mol (b) 255 g of magnesium acetate dissolved in water Mg2+ mol C2H3O2- mol (c) 1.45 1024 formula units of ammonium chromate dissolved in water NH4+ mol CrO42- mol (d) 1.33 L of 0.55 M sodium bisulfate Na+ mol HSO4- mol