CHEMISTRY HELP - concentrations, percent error etc?
-original household bleach solution was diluted 50:1 to obtain the hypochlorite solution in the buret.
-concentration of hypochlorite ion in the original bleach solution is 0.2492 M.
****NEED ANSWERS TO THE FOLLOWING Questions****:
1. The active ingredient in household bleach is sodium hypochlorite, NaOCl. Calculate the % (w/v) concentration of this active ingredient in household bleach. Note: w/v refers to weight per volume, in this case, mass of NaOCl per mL of 130mL solution
2. Using the % w/v (found in question 1) of NaOCl on the bottle of bleach, calculate the % error in your experiment.
3. Give 2 reasons for experimental error, that would result in a positive or negative error.
4. Explain 2 advantages and 2 disadvantages to the colorimetric method to determine the concentration of species over the classical titration method used in previous experiments.