Acid rain analysis by standard addition titration

Abstract

The public debate about the causes and effects of acid rain will have a greater meaning to students who determine the

Development and Implementation of a Simple, Engaging Acid Rain Neutralization Experiment and Corresponding Animated Instructional Video for Introductory Chemistry Students

“…For example, in 1985, Ophardt et al proposed a simple experiment in which students would collect rainwater and measure its acidity via titration with sodium hydroxide. 3 Baedecker et al described an experiment in which students would spray slabs of marble and limestone with acidic solutions, collect the runoff, and measure its pH to determine the extent of the stone erosion. 4 Schilling et al passed sulfuric acid through a column containing sand mixed with calcium carbonate and titrated the acid to determine its concentration.…”

“…Experiments modeling acid rain neutralization have been previously performed, most commonly, by monitoring pH changes. For example, in 1985, Ophardt et al proposed a simple experiment in which students would collect rainwater and measure its acidity via titration with sodium hydroxide . Baedecker et al described an experiment in which students would spray slabs of marble and limestone with acidic solutions, collect the runoff, and measure its pH to determine the extent of the stone erosion .…”

Unraveling the Role of Sulfur Compounds in Acid Rain Formation: Experiments on a Wetted Glass pH Electrode

“…Acid rain is a popular subject in environmental and general chemistry texts of all levels . Laboratory experiments on acid rain formation are available, but many of them present an oversimplified and qualitative view of the involved chemical transformations (typically, detection of the pH change of water by a visual indicator after exposure to combustion gases of sulfur-containing fuel) or of its impact on limestone or plants − . In this Journal , there are also demonstrations of the acidification of rain by NO x , .…”

The Gran plot analysis of an acid mixture: An undergraduate experiment to highlight this alternate method

“…Several applications of the Gran plot have appeared in the literature recently. It has been incorporated into an experiment for the determination of fluoride concentration by use of a specific ion electrode (8) and one for acid rain analysis (9). And the Gran plot has been applied to the measurement of percent strong acid found in atmospheric aerosols over the Northeastern United States (JO).…”