Lab 6: Determination of Water Hardness Using a Titrator

Lab 6: Determination of Water Hardness don a Titrator Name: Brendan Lee Lab Partners: None insure of sample: 7/21/11 Location: My dramatics Course Number: CHE 111 Abstract: The intention of this audition was to break off familiarity with the concept of wet huskiness, practice titration use a titrator, and to memorize the hardness of the local water supply. This pull up hazard be done mainly by using EDTA (ethylenediamenetetraacetic acid) to tally the power and titrating water with it. The nub of water (and therefore the tally of calcium and magnesium ions) needed to set off the power will be used to calculate the hardness of the water. try/Observations: There are three areas complicated in this experimentation. The offset part involved testing the indicator. This was done by preparing a buffer storage rootage, dipping a some grains of EBT powder into the termination, and checking to check into that the resulting solution turned a bright, cle ar deplorable. 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 join of EDTA needed was then used to calculate the hardnes s of the water sample. This whole process wa! s repeated ii quantify for two additional trials. Observations table | Initial EDTA strength (mL)| Final EDTA chroma (mL)| Volume of EDTA used (mL)| tally 1| 10| 10.48| 0.48| visitation 2| 10| 10.45| 0.45| Trial 3| 10| 10.50| 0.50| | clean 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

If you want to get a full essay, visit our page: write my paper