Contamination Testing

Contamination Testing


    During the test ten drops of HCl (Precipitates out only silver, lead, titanium, mer cury and  copper ions) Was first used to test for Pb 2+  in 8mL of the solution, however even after five minu tes no precipitate had formed therefore it was  deduced that there was no Pb 2+  in the solution. In order to test for Fe 3+  ten drops of (NH 4 ) 2 CO <sub style="color:rgb(51,51,51);font-family:Arial,sans-serif;">3 <span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:10.5pt;line-height:15pt;"> (precipitates out most ions) was then added to 2 different test tubes containing 8mL of the solution and immediately a red-orange precipitate began to form and this precipitate occurred in both samples that were tested with the ammonium carbonate. It was therefore concluded that the solution did not contain Pb <sup style="color:rgb(51,51,51);font-family:Arial,sans-serif;">2+ <span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:10.5pt;line-height:15pt;">but did contain Fe <sup style="color:rgb(51,51,51);font-family:Arial,sans-serif;">3+ <span style="color:rgb(51,51,51);font-family:Arial,sans-serif;font-size:10.5pt;line-height:15pt;">.

<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: 15.0pt;background:white"><span style="font-size:10.5pt;font-family:"Arial","sans-serif"; mso-fareast-font-family:"TimesNewRoman";color:#333333;mso-fareast-language: EN-CA">

<p class="MsoNormal" style="margin-bottom:0in;margin-bottom:.0001pt;line-height: 15.0pt;background:white"><span style="font-size:10.5pt;font-family:"Arial","sans-serif"; mso-fareast-font-family:"TimesNewRoman";color:#333333;mso-fareast-language: EN-CA">    The visual flow chart shows the steps of the testing and highlight portions represent real results that occurred during testing.