can someone check my answers here for my lab...
so i have 3.234*10-4 moles of ca2+ and mg2+ ions and used 0.02450L of edta so my molarity of both ions is 0.01320 M.
and now we had to find calcium, i used 0.01655 L of edta, can i use the same # of moles (3.234*10^-4) to find the molarity of calcium ???? idk how to find the moles of calcium