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Solutions : ReverseOsmosis (20 Variations) You are given a water sample that contains ammonium chloride (NH4Cl). You determine the concentration of the salt to be 0.500 M and decide to purify the water using reverse osmosis. What is the minimum pressure that must be applied at 30.0oC to force the water through the membrane?
Solutions / Solvents |
Transport Properties
Gases : GasGramMixPressure (5 Variations)
4.80 g of CH4 is mixed with 17.6 g of CO2 in a 9.00 L flask at a temperature of 67.2oC. What is the total pressure of the flask? (Assume there is no reaction.)
Gases |
Chemometrics
Gases : GasMoleMixPressure (5 Variations)
What is the pressure exerted by a mixture of gases in a 40.0 L container at 127oC if the mixture contains 0.100 mol O2, 0.400 mol CH4, and 0.500 mol SO2?
Similarity and Difference in the Behavior of Gases: An Interactive DemonstrationGuy Ashkenazi A demonstration that concurrently exposes differences and similarities in the behavior of two different gases has been designed to bridge the gap between students' understanding at the algorithmicmacroscopic and conceptualmicroscopic levels. Ashkenazi, Guy. J. Chem. Educ.2008, 85, 72.
Gases |
Kinetics |
Learning Theories
Geographical Information Systems (GIS) Mapping of Environmental Samples across College CampusesKathleen L. Purvis-Roberts, Harriet P. Moeur, and Andrew Zanella In this laboratory experiment, students take environmental samples (concentrations of nitrogen dioxide) and geospatial coordinates with a global position systems unit at various locations around campus, map their data on a geo-referenced map with geographical information systems software, and compare their results to those observed by governmental agencies. Purvis-Roberts, Kathleen L.; Moeur, Harriet P.; Zanella, Andrew. J. Chem. Educ.2007, 84, 1691.
Applications of Chemistry |
Atmospheric Chemistry |
Gases |
Laboratory Computing / Interfacing |
UV-Vis Spectroscopy
Gas Permeability of PolymersJee-Yon Lee Undergraduate students can learn what causes the helium-inflated balloon to fall in a few days through the proposed experiment. Lee, Jee-Yon. J. Chem. Educ.2005, 82, 1472.
Plants-ACS Science for KidsAmerican Chemical Society ACS Science for Kids activities exploring the properties and chemistry of plants.
Plant Chemistry |
Natural Products |
Photosynthesis |
Transport Properties
GraphingAmerican Chemical Society ACS Science for Kids activities explore the aspects of recording scientific data and presenting that data in useful graphs.
