Analysis Of Commercial Bleach

Riya Singh Banita Sathpathy Period 1 Analysis of a Commercial Bleach Purpose The purpose of this experiment is to determine the amount of atomic number 11 hypochlorite in commercialized whitener by reacting the bleach with atomic number 11 thiosulfate. Procedure In this experiment a solution of atomic number 11 thiosulfate of cognize concentration will be added to the bleach using a buret in a titration procedure. The disappearance of the dark gamey color of the starch- iodine involved plant will sign up the end point. Data running 1Trial 2Trial 3 initial reading material (ml)000 Final Reading (ml)35.736.036.6 Volume of Na2S2O335.7 ml36.0 ml36.6 ml Calculations and Analysis 2 S2O3-2 = I3- = I2 = ClO- so looking at the equation above, we can stop that for all(prenominal) mole of atomic number 11 thiosulfate we exact half a mole of sodium hypochlorite. (35.7+36+36.6)/3=36.1 ml is the fair wad of the Na2S2O3. (0.0361)(0.1) = 0.00361 0.00361/(2 ×2.5)=7.22 ×〖10〗^(-4) M NaClO 0.00481/(.005) = 0.96 M NaClO 0.358/5.4= 35.8 % |.358-0.060|= .298 |(0.358-0.06)/0.06|=4.

9% share error Conclusion In the experiment a redox titration was performed in wander to determine the percent of sodium hypochlorite in commercial bleach. This do by reacting the bleach and the sodium thiosulfate in the carriage of iodide ions and starch. Discussions of Theory observational Sources of Error Pre-Lab Questions Titration is the process, operation, or method of determine the concentration of a midpoint in solution by adding to it a archetype reagent of cognize concentration in care mounty measured amounts until a reception of definite and known isotropy is completed, as shown by a color change or by galvanizing measurement, and then calculating the unknown concentration.If you postulate to get a full essay, order it on our website: Orderessay

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