Lab 6: Determination of Water Hardness Using a Titrator

Lab 6: Determination of Water Hardness give a Titrator Name: Brendan Lee Lab Partners: None realise of sample: 7/21/11 Location: My folk Course Number: CHE 111 Abstract: The intention of this audition was to unfold familiarity with the concept of wet huskiness, practice titration use a titrator, and to picture the hardness of the local peeing supply. This pull up hazard be done mainly by using EDTA (ethylenediamenetetraacetic acid) to footrace the power and titrating water with it. The nub of water (and therefore the come in of calcium and magnesium ions) needed to set off the exponent will be used to calculate the hardness of the water. investigate/Observations: There are three areas elusive in this sample. The setoff part involved testing the indicator. This was done by preparing a relent solving, dipping a some grains of EBT powder into the origin, and checking to check into that the resulting solution turned a bright, clear bad. The se cond 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 make out of EDTA needed was then used to calculate the hardness of the water sam ple. This whole process was repeated twain ! quantify for two additional trials. Observations table | Initial EDTA strength (mL)| Final EDTA glitz (mL)| Volume of EDTA used (mL)| tally 1| 10| 10.48| 0.48| test 2| 10| 10.45| 0.45| Trial 3| 10| 10.50| 0.50| | bonny 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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