Using Colorimetry - Using Colorimetry & Beer's Law to...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Introduction . In this experiment different dilutions of the stock copper solution are used in a colorimeter to determine the unknown concentration of Copper in a post-1982 penny. The effectiveness of the procedure was assessed by performing percent error calculations on the total Copper produced with ideal amount of copper. The amount of copper produced was obtained by dissolving the penny and then mixing the solution with one of the diluted copper solutions produced. This solution was then put into a colorimeter and using Beer’s plot the absorbance of acid was used to determine the mass. Experimental Procedure . An acid was required to be a catalyst in the dissolving of a penny. 10 M HNO_3 acid was used to facilitate the dissolution. The penny solution was then diluted. To attain that all the copper was attained, the beaker was rinsed out (Insuring that all the copper was attained, the answers later in the experiment will be more accurate). Then the copper stock solution was attained from the TA and from there, there were four dilutions made. These dilutions were made using the calculations performed
Background image of page 1

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

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/07/2008 for the course CHM 2045L taught by Professor Horvath during the Fall '07 term at University of Florida.

Page1 / 3

Using Colorimetry - Using Colorimetry & Beer's Law to...

This preview shows document pages 1 - 2. Sign up to view the full document.

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