The purpose of this lab is to determine the percentage of sodium hypochlorite, NaCLO, in commercial laundry bleach. We prepared a diluted solution of bleach and we piped 25ml of diluted bleach. We reacted the solution with sodium thiosulfate until the solution turned into a pale yellow. After it turned in to a pale yellow we added 5ml of starch. The solution turned into a dark blue. Once it turned into a dark color. We added more sodium thiosulfate slowly until the solution turned clear. This would help us calculate the moles of hypo chloride in our diluted bleach solution. This will also allow us to calculate the mass of NaClo, also we will be able to calculate the mass of our diluted bleach. In conclusion the titration of commercial bleach
