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About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators. While the overall point of this lab was to find amount of sodium hypochlorite in commercial.
To make the measurement more accurate starch was added to help determine the endpoint of the solution.
Analysis of a commercial bleach lab. In this experiment the amount of sodium hypochlorite in commercial bleach will be determined by reacting it with sodium thiosulfate while in the presence of iodide ions and starch. A solution of sodium thiosulfate of a known concentration will be added to the bleach using a buret in a titration. Analysis of a Commercial Bleach Lab Introduction Many commercial products are effective because they contain oxidizing agents.
Some products which contain oxidizing agents are bleaches hair coloring agents scouring powders and bathroom cleaners. The most common oxidizing agent in bleaches is sodium hypochlorite NaClO also written NaOCl. Commercial bleach is sodium hydrochloride the percent error was 817which is in proximity.
When compared to the original percent error being 825. While the overall point of this lab was to find amount of sodium hypochlorite in commercial. Bleach the lab was able to teach our group how sodium thiosulfate and starch really affected our.
Analysis of a Commercial Bleach Purpose. The purpose of this lab is to determine the amount of sodium hypochlorite NaClO in commercial bleach. This can be done by forming triiodide ions.
To make the measurement more accurate starch. Analysis of a Commercial Bleach Zahra Makki Fatima Bouhamdan April 14 2016 AP Chemistry - 4 th hour Purpose. The purpose of this experiment is to determine the amount of sodium hypochlorite NaClO found in a commercial bleach.
Analysis of a Commercial Bleach Purpose. The purpose of this lab is to determine the amount of sodium hypochlorite NaClO in commercial bleach. This can be done by forming triiodide ions.
To make the measurement more accurate starch was added to help determine the endpoint of the solution. Analysis of a Commercial Bleach Solution Lab Report. 24th May 2017 There is not a formal lab report for this lab.
Complete the below pages and submit them to your TA before leaving lab. Analysis of Commercial Bleach Solutions OBJECTIVE. The sodium hypochlorite composition of generic bleach from a discount store will be compared to name-brand bleach to determine if the generic bleach can be used for disinfection purposes.
As a result through the proper calculations using the molar ratios one can determine that the moles of NaClO produced would too be lower. As a result the final percentage of NaClO in the commercial bleach would be lower. 3 Diluting the solution.
Analysis of Bleach Purpose. In this lab we will use sodium thiosulfate solution that we have previously standardized to determine the concentration of. To find the mass of the bleach I subtracted the weight of the empty beaker from the weight of the beaker with the bleach in it.
For the first trial 2737 g 2653 g 084 g. To find the moles of Na 2 S 2 O 3 I again used the equation Moles Molarity Liters. In my first trial 4902 10-2 M 002819 L 1382 10-3 moles.
In this experiment the amount of sodium hypochlorite in commercial bleach will be determined by reacting it with sodium thiosulfate while in the presence of iodide ions and starch. A solution of sodium thiosulfate of a known concentration will be added to the bleach using a buret in a titration. An average of 172 mL of sodium thiosulfate was used in the titration resulting in a calculation.
Analysis of a Commercial Bleach. Analysis of a Commercial Bleach Purpose. The purpose of this lab is to determine the amount of sodium hypochlorite NaClO in commercial bleach.
This can be done by forming triiodide ions. To make the measurement more accurate starch was added to help determine the endpoint of the solution. Analysis of Commercial Bleach AP Chemistry Introduction.
Many commercial products are effective because they contain oxidizing agents. Some products that contain oxidizing agents are bleaches hair coloring agents scouring powders and toilet bowl cleaners. The most common oxidizing agent in bleaches is sodium hypochlorite NaClO.
Percent Composition of Sodium Hypochlorite in Commercial Bleach. To find the percent composition of sodium hypochlorite in commercial bleach 1. A method of analysis that will allow you to determine the precise endpoint of a reaction and therefore the precise quantity of reactant in the titration flask.
A buret is used to deliver the second reactant to. Analysis of a Commercial Bleach Purpose. The purpose of this lab is to determine the amount of sodium hypochlorite NaClO in commercial bleach.
This can be done by forming triiodide ions. To make the measurement more accurate starch was added to help determine the endpoint of the solution. Bleach Lab Purpose.
To find the percent composition of sodium hypochlorite in commercial bleach. Table 1 Trial 1 Trial 2 Trial 3 Initial buret Analysis of a Commercial Bleach - Term Paper -. Analysis of a Liquid Bleach Sample 1.
Pipet 10 mL of your assigned bleach sample into a 100 mL volumetric flask and dilute to the mark with water being sure to thoroughly mix the sample. Pipet 25 mL of this diluted solution into a 250 mL Erlenmeyer flask. Add about 2 g of KI and 10 mL of 05 M H2SO4.
The point of this lab was to get practice with titrations and to determine the concentration. Of sodium hypochlorite in a commercial solution of bleach. This lab taught us how to analyze the.
Percent composition of a compound in a solution and how to find it based on titrations and. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy Safety How YouTube works Test new features Press Copyright Contact us Creators. Analysis of a commercial bleach pre lab answers Thank you for the interesting in our services.
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Sodium Hypochlorite in Bleach Experiment 4. Abstract In this experiment the molarity of sodium hypochlorite in Clorox bleach was determined through titration with thiosulfate solution. Diluted bleach was mixed with the reducing agent I- in excess solution and a.
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