Chemistry Forum

I am struggling a lot with analytical chemistry and i really need help to solve this question. A Cr3+ solution was prepared by dissolving 0.2525g of CrCl3.6H2O salt in 250 mL of 0.01 mol L-1 HCl. From this stock solution, a solution was prepared by diluting 21.3 mL of the stock solution in 50 mL of ...