Asample of a new cleaning product, "joe's famous bleach cleaner," with a mass of 42.0 g , was diluted with an acetic acid solution containing excess i−. a small amount of starch indicator solution was then added, turning the solution a deep bluish-purple. the solution was then titrated with 0.180 m sodium thiosulfate, na2s2o3, containing the ion s2o32−. a volume of 44.0 ml of sodium thiosulfate, the titrant, was needed to turn the solution colorless. part a what is the percentage composition by mass of naclo in the bleach product? express your answer to three significant figures and include the appropriate units.