Lab 6: Determination of Water Hardness Using a Titrator

Lab 6: Determination of Water Hardness obligate a Titrator Name: Brendan Lee Lab Partners: None get word of sample: 7/21/11 Location: My house Course Number: CHE 111 Abstract: The intention of this audition was to machinate familiarity with the concept of wet huskiness, practice titration use a titrator, and to influence the hardness of the local peeing supply. This pull up venture be done mainly by using EDTA (ethylenediamenetetraacetic acid) to ladder the power and titrating water with it. The nub of water (and therefore the inwardness of calcium and magnesium ions) needed to set off the indication will be used to calculate the hardness of the water. prove/Observations: There are three areas twisting in this try out. The premier part involved testing the indicator. This was done by preparing a original origin, dipping a some grains of EBT powder into the response, and checking to check into that the resulting solution turned a bright, clea r blue. The second part involved actually performing the titration. In this shade, I only if constructed a mechanism that would hold the titrator and I dripped a few drops of EDTA solution from the titrator into the beaker. Finally, the last step involved titrating the water. The tap water and buffer solution were poured into the beaker, and the EDTA solution was titrated into the beaker.

A drop of EDTA was added both 5 seconds, and this continued until the solution turned the same lilting blue as observed in the first step of the experiment. The fare of EDTA needed was then used to calculate the hardness of th e water sample. This whole process was repea! ted cardinal quantify for two additional trials. Observations table | Initial EDTA strength (mL)| Final EDTA ledger (mL)| Volume of EDTA used (mL)| tally 1| 10| 10.48| 0.48| tally 2| 10| 10.45| 0.45| Trial 3| 10| 10.50| 0.50| | pretty volume of EDTA used (mL):| 0.4767| Calculations and Error: The calculations used in this experiment were...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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