6. Natural water containing chlorides was diluted 10 times with distilled water. To 15.00 ml of this water was added 10.00 ml of dye and 5.00 ml of distilled water. To equalize the colors of 2.50 ml of a 0.00500 N sodium chloride solution and the test solution, 10.00 ml of the dye and distilled water were added to the sodium chloride solution to 30.00 ml. Determine the concentration of chloride in natural water (in mg/l).

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.