Lab 6: Determination of Water Hardness Using a Titrator

Lab 6: Determination of Water Hardness do a Titrator Name: Brendan Lee Lab Partners: None visualize of sample: 7/21/11 Location: My home plate Course Number: CHE 111 Abstract: The intention of this audition was to school familiarity with the concept of wet huskiness, practice titration use a titrator, and to get word the hardness of the local water system supply. This pull up put on the line be done mainly by using EDTA (ethylenediamenetetraacetic acid) to running game the power and titrating water with it. The nub of water (and therefore the come of calcium and magnesium ions) needed to set off the index finger will be used to calculate the hardness of the water. test/Observations: There are three areas twisty in this audition. The offset part involved testing the indicator. This was done by preparing a break ascendant, dipping a some grains of EBT powder into the solution, and checking to check into that the resulting solution turned a brig ht, clear spicy. 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 sum of EDTA needed was then used to calculate the hardne ss of the water sample. This whole process w! as repeated twain quantify for two additional trials. Observations table | Initial EDTA strength (mL)| Final EDTA sight (mL)| Volume of EDTA used (mL)| tally 1| 10| 10.48| 0.48| essay 2| 10| 10.45| 0.45| Trial 3| 10| 10.50| 0.50| | fair(a) 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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