Final Water Project

Final Water Project - Water Project Author Parker Ashbaugh...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Water Project Author: Parker Ashbaugh Lab Partners: Bryan Redsun Adria Brooks Neil Dolan TA: Tim Black 103b section 09 Abstract: Four water samples were subjected to 3 different tests and the following values were found relating to ion concentrations. It was found that the pure cave water sample contained an average of 1089 parts per million (ppm) divalent metal ions, 2.5x10 -3 M of calcium, and 7.1x10 -5 of positive metal ions.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
I. Introduction The objective of this project was to compare the quality of water samples collected around the Tucson area. The quality of the water was assumed to be directly proportional to the amount of dissolved ions in the individual samples. This lab included 3 methods of testing four different water samples for various dissolved ions. The first method used was complexometric titration where the water samples’ hardness was determined by testing for the concentration of divalent ions dissolved in the water samples. Next, the total concentration of positive charge per water sample was calculated using Ion-exchange chromatography. The third technique of this project used ion selective electrodes make a calibration plot for the calcium ion in order to calculate the total concentration of Ca 2+ per water sample. The values for all methods were then compared in order to compare the samples for healthiness. Water is a very unique and important molecule for many of life’s processes. Since all of the techniques used in this project involve different methods of testing water, the techniques used will likely have future applicability for any student taking this course. II. Experimental All methods and techniques can be found in Fundamental Techniques of Chemistry by Steven L. Brown. The techniques used are described in chapters 17 through 20 of this lab manual. Complexometric Titration Technique: A sample of water solution was titrated using a complexing agent known as EDTA, ethylenediaminetetraacetate, as the titrant. The equivalence point for this lab was when the solution turned form red to blue due to the presence of ErioT indicator. At the
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/03/2008 for the course CHEM 103B taught by Professor Keller during the Spring '08 term at Arizona.

Page1 / 6

Final Water Project - Water Project Author Parker Ashbaugh...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online