Category Archives: Chemistry

Chemistry Help Workshop 6.05: Bohr's Equation - Calculate Hydrogen Atom Transition Energy In this Chemistry Help Workshop video, Professor Geanangel demonstrates a Bohr's Equation example problem. By: Chemistry Help … Continue reading →

Chemistry Help Workshop 4.20: Gas Stoichiometry - Limiting Reactant In this Chemistry Help Workshop video, Professor Geanangel demonstrates a gas stoichiometry problem with a limiting reactant. By: Chemistry Help … Continue reading →

Chemistry Help Lecture 1.01: The Atomic View of Matter In this Chemistry Help Lecture video, Professor Geanangel examines the Law of Conservation of Mass, the Law of Definite Composition, and the Law of Multiple Proportions. By: Chemistry Help … Continue reading →

Chemistry Help Workshop 1.12: Mass of an Element in a Compound - Example 2 In this Chemistry Help Workshop video, Professor Geanangel demonstrates how to solve for mass of an element in a known mass of compound. By: Chemistry Help … Continue reading →

Chemistry Help Workshop 1.11: Mass of an Element in a Compound - Example 1 In this Chemistry Help Workshop video, Professor Geanangel demonstrates how to solve for mass percent of an element in a compound. By: Chemistry Help … Continue reading →

Salt Analysis Part-2 | Anion Test for Sulphides | Chemistry Engineering Entrance Preparation Video Lecture for IIT JEE/AIEEE Preparation. By: Education and Career Videos … Continue reading →

Chemistry - Unit 02 - Part 02 - Scientific Notation and Dimensional Analysis Today we're going to look at scientific notation and dimensional analysis. Let's talk about each in turn. First: scientific notation. I'm aware that most of you have calculators or smart phones... By: Kingwood Science Tutorials … Continue reading →

PUBLIC RELEASE DATE: 24-Jul-2014 Contact: Lisa Horton l.horton@uea.ac.uk 44-016-035-92764 University of East Anglia Parts of the primordial soup in which life arose have been maintained in our cells today according to scientists at the University of East Anglia. Research published today in the Journal of Biological Chemistry reveals how cells in plants, yeast and very likely also in animals still perform ancient reactions thought to have been responsible for the origin of life some four billion years ago. The primordial soup theory suggests that life began in a pond or ocean as a result of the combination of metals, gases from the atmosphere and some form of energy, such as a lightning strike, to make the building blocks of proteins which would then evolve into all species. The new research shows how small pockets of a cell known as mitochondria continue to perform similar reactions in our bodies today. These reactions involve iron, sulfur and electro-chemistry and are still important for functions such as respiration in animals and photosynthesis in plants. Lead researcher Dr Janneke Balk, from UEA's school of Biological Sciences and the John Innes Centre, said: "Cells confine certain bits of dangerous chemistry to specific compartments of the … Continue reading →

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Tom Izzo: Spartans thrive on'power of chemistry' Michigan State coach Tom Izzo talks about his team responded from back-to-back losses and Branden Dawson's injury to win the Big Ten tournament. By: MLive.com Staff … Continue reading →