The ideal titration volume is between 35 and 50 mL since this uses most of the v
ID: 899172 • Letter: T
Question
The ideal titration volume is between 35 and 50 mL since this uses most of the volume of a 50 mL buret without going over. Achieving a larger titration volume (35 mL to 50 mL) instead of a small titration volume (say 10 mL) reduces contributions of small errors such as misreading a buret. An experiment to verify the hypochlorous acid content in a commercial brand of bleach requires titration of a certain volume of bleach with a solution of iodide. HOCI (aq) + H^+ (aq) + 3I' (aq) right arrow I3'(aq) + CI'(aq) + H2O(I) If the manufacturer states that the bleach is 5.5% HOCI by volume, what volume of bleach sample should be titrated with 1.525 M sodium iodide solution to provide an acceptable titration volume at the equivalence point? You may require additional data which can be accessed through online sources or the CRC handbook (give references).How would you dispense this particular volume? (what type of glassware would you use?) Briefly explain.Explanation / Answer
b) In general titrant is taken in burette and the solution to be titrated is taken in Erlenmeyer flask (conical flask).
In this titration sodium iodide is titrant and bleach solution has to titrated. Sodium iodide is taken in burette and bleach is taken in Erlenmeyer flask.
The particular volume of bleach can be dispensed by using Erlenmeyer Flask
a) More information needed. To solve this part density of bleach solution is required and volume of sodium iodide is also needed.
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