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Rattanakit, Parawee; Maungchang, Rasimate – Journal of Chemical Education, 2019
A laboratory experiment utilizing locally available Indian Gooseberry ("Phyllanthus emblica" Linn.) extract as a bioreagent to determine iron(III) is described with the goal of providing students with hands-on experience in spectrophotometry and green chemistry. Spectrophotometry was used to measure the concentration of the complex…
Descriptors: Chemistry, Science Instruction, Environment, Science Laboratories
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Jones, Daniel R.; DiScenza, Dana J.; Mako, Teresa L.; Levine, Mindy – Journal of Chemical Education, 2018
Reported herein is a multidisciplinary laboratory experiment for advanced undergraduate students that includes elements of material synthesis, in the synthesis of cyclodextrin-containing metal-organic frameworks (CD-MOFs), and environmental chemistry, in the use of these MOFs for pollutant removal. This multiday laboratory experiment starts with…
Descriptors: Undergraduate Students, College Science, Laboratory Experiments, Science Instruction
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Raghuwanshi, Vikram Singh; Wendt, Robert; O'Neill, Maeve; Ochmann, Miguel; Som, Tirtha; Fenger, Robert; Mohrmann, Marie; Hoell, Armin; Rademann, Klaus – Journal of Chemical Education, 2017
We demonstrate here a novel laboratory experiment for the synthesis of gold nanoparticles (AuNPs) by using a low energy gold-sputtering method together with a modern, green, and biofriendly deep eutectic solvent (DES). The strategy is straightforward, economical, ecofriendly, rapid, and clean. It yields uniform AuNPs of 5 nm in diameter with high…
Descriptors: Science Instruction, College Science, Science Laboratories, Laboratory Experiments
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Davis, Eric J.; Pauls, Steve; Dick, Jonathan – Journal of Chemical Education, 2017
Presented is a project-based learning (PBL) laboratory approach for an upper-division environmental chemistry or quantitative analysis course. In this work, a combined laboratory class of 11 environmental chemistry students developed a method based on published EPA methods for the extraction of dichlorodiphenyltrichloroethane (DDT) and its…
Descriptors: Student Projects, Teaching Methods, Active Learning, Chemistry
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Kelley, Amanda L.; Hanson, Paul R.; Kelley, Stephanie A. – American Biology Teacher, 2015
Ocean acidification, a product of CO[subscript 2] absorption by the world's oceans, is largely driven by the anthropogenic combustion of fossil fuels and has already lowered the pH of marine ecosystems. Organisms with calcium carbonate shells and skeletons are especially susceptible to increasing environmental acidity due to reduction in the…
Descriptors: Science Instruction, Climate, Oceanography, Animals
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Frey, Douglas D.; Guo, Hui; Karnik, Nikhila – Chemical Engineering Education, 2013
This article describes the assembly of a simple, low-cost, high-performance liquid chromatography (HPLC) system and its use in the undergraduate chemical engineering laboratory course to perform simple experiments. By interpreting the results from these experiments students are able to gain significant experience in the general method of…
Descriptors: Science Instruction, Chemistry, Chemical Engineering, Science Laboratories
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Meighan, Michelle; MacNeil, Joseph; Falconer, Renee – Journal of Chemical Education, 2008
The relationship between pH and the aqueous solubility of heavy metals is explored by considering the environmental impact of acidic mine drainage. Acid mine drainage is an important environmental concern in many areas of the United States. Associated with coal mining in the East and hard rock mining in the West, the acidity originates primarily…
Descriptors: Mining, Chemistry, Environment, Metallurgy
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Birdwhistell, Kurt R.; Nguyen, Andy; Ramos, Eric J.; Kobelja, Robert – Journal of Chemical Education, 2008
The acylation of ferrocene is a common reaction used in organic laboratories to demonstrate Friedel-Crafts acylation and the purification of compounds using column chromatography. This article describes an acylation of ferrocene experiment that is more eco-friendly than the conventional acylation experiment. The traditional experiment was modified…
Descriptors: Organic Chemistry, Heat, Science Laboratories, Science Instruction
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Kinard, W. Frank – Journal of Chemical Education, 1979
This experiment demonstrates the reduction of inorganic sulfate to sulfide in the pore water of estuarine muds. Procedures involve the incubation of mud samples for varying amounts of time followed by gravimetric determination. (Author/SA)
Descriptors: Chemical Analysis, Chemistry, College Science, Environment
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Tugel, Joyce B. – Science Teacher, 1994
Provides real life assignments that can be used to help students apply chemistry laboratory techniques to solve environmental hazardous waste problems. Numerous diagrams are provided to aid in describing the experiments performed. (ZWH)
Descriptors: Chemistry, Environment, Hazardous Materials, High Schools
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Westmoreland, David – American Biology Teacher, 1994
A major contributor to our understanding of the adaptation of all organisms to the physical environment is physiological ecology. Described here is an inexpensive, reliable and simple experiment to aid in helping students to understand better the acclimation process. (ZWH)
Descriptors: Biology, Ecology, Environment, High Schools
Bosak, Susan V.; And Others – 1991
This book helps teachers fulfill curriculum requirements by building both science content and process skills through hands-on exploration. Ten broad subject areas are covered: (1) Discovering Science, (2) Matter and Energy, (3) Humans, (4) The Environment, (5) Rocks, (6) Plants, (7) Living Creatures, (8) Weather, (9) The Heavens, and (10) Applying…
Descriptors: Astronomy, Biology, Botany, Earth Science