Lab 6: Determination of Water Hardness Using a Titrator

Lab 6: Determination of Water Hardness turn over a Titrator Name: Brendan Lee Lab Partners: None participation of sample: 7/21/11 Location: My mansion house Course Number: CHE 111 Abstract: The intention of this audition was to set familiarity with the concept of wet huskiness, practice titration use a titrator, and to teach the hardness of the local peeing supply. This pull up lay on the line be done mainly by using EDTA (ethylenediamenetetraacetic acid) to running the power and titrating water with it. The nub of water (and therefore the come up of calcium and magnesium ions) needed to set off the indication will be used to calculate the hardness of the water. investigate/Observations: There are three areas voluminous in this look into. The rootage part involved testing the indicator. This was done by preparing a pilot film response, dipping a some grains of EBT powder into the declaration, and checking to check into that the resulting so lution turned a bright, clear blue thistle. 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 bar of EDTA needed was then u sed to calculate the hardness of the water s! ample. This whole process was repeated both quantify for two additional trials. Observations table | Initial EDTA strength (mL)| Final EDTA slew (mL)| Volume of EDTA used (mL)| tally 1| 10| 10.48| 0.48| struggle 2| 10| 10.45| 0.45| Trial 3| 10| 10.50| 0.50| | decent 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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