1 Write-up - concentration, and ppm of dilution samples...

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

View Full Document Right Arrow Icon
Pre-Lab Experiment #2 Statement of the Problem: The goal of this experiment is to determine the source of nitrate poisoning using samples collected from the possible contaminated sites. Summary of Methods: Two methods are going to be used in the experiment to measure nitrate concentration. First a serial dilution is performed using two samples of potassium nitrate that differ in concentration. By then adding diphenylamine, the nitrate ion concentration can be determined by the color of the mixture of the two substances. The second method uses disposable nitrate test strips which change to different shades of pink depending on the concentration of nitrate in the solution. Data Collection: A data table will be presented to display the solution, its
Background image of page 1

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

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

Unformatted text preview: concentration, and ppm of dilution samples (1). Observations will be recorded for the diphenylamine test (2). Another data table indicating the solution its concentration, and observations of color change during the nitrate test strips experiment will be presented (3). Once concentrations of nitrate have ben determined, that data will be recorded on a data table presenting nitrate anion concentrations and the source (4). 1 Concentrations of Diluted Solutions Solution Molarity Molality ppm 1 10000 2 5000 3 1000 4 500 5 100 6 50 7 5 8 2 Diphenylamine Test Solution Observations 1 2 3 4 5 6 7 8 3 Nitrate Test Strips Solution Concentration Observations 1 2 3 4 5 6 7 8 4 Summary Table Source Concentration...
View Full Document

Page1 / 2

1 Write-up - concentration, and ppm of dilution samples...

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