CHEM 101

CHM 101 Experiment 7 Dissolved Oxygen Levels in Natural Waters Objectives To learn the chemical reactions involved in fixing and analyzing water sample for dissolved oxygen using Winkler method. To determine the dissolved oxygen concentration of a natural water sample. Introduction The aesthetic appearance of bodies of water such as the color, surface growth and odor indicate an immediate perception of the quality of water. Other parameters give clear description of the quality of a w...