Chemistry videos

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Chemistry videos

Post by Algerien1970 on Mon 8 Jun - 22:28



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Re: Chemistry videos

Post by Algerien1970 on Mon 8 Jun - 22:31



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We are now going to look at chemical reactions. But as we do, we need to make sure that atoms aren't magically appearing or disappearing. Put another way, we need to sure that we have the same number of each constituent atom in the product of the reaction as we do in the reactants (the molecules that react)!

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Re: Chemistry videos

Post by Algerien1970 on Mon 8 Jun - 22:32

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Atomic theory is not Bohr-ing! While it doesn't work for atoms with more than one electron, the Bohr model successfully predicts the emission spectrum of hydrogen.[/size]
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Re: Chemistry videos

Post by Algerien1970 on Mon 8 Jun - 22:33

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A little more than a century ago, the chemist Dmitri Mendeleev published an early form of the periodic table, which organizes the known elements of our world. His method of classifying the elements was so useful that we still use it even today. We will learn to apply this elegant table to an understanding of atoms and molecules in this tutorial. Hydrogen, helium, lithium, beryllium, boron, carbon…[/size]
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Re: Chemistry videos

Post by Algerien1970 on Mon 8 Jun - 22:35

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In this tutorial, we will learn about electronegativity and the different types of chemical bonds.[/size]
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Re: Chemistry videos

Post by Algerien1970 on Mon 8 Jun - 22:36

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In this tutorial, Sal shows you how to use the ideal gas equation in calculations.[/size]
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Re: Chemistry videos

Post by Algerien1970 on Mon 8 Jun - 22:37

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Re: Chemistry videos

Post by Algerien1970 on Mon 8 Jun - 22:38

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In this tutorial, we will examine the equilibrium state and learn how to write the expression for the equilibrium constant.[/size]
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Re: Chemistry videos

Post by Algerien1970 on Mon 8 Jun - 22:39

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In this tutorial, we will learn about the different factors that affect a reaction mixture at equilibrium.[/size]
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In the lab, it is useful to know how much of something you have or the concentration of a solute. In this tutorial, we'll light to do that![/size]
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Re: Chemistry videos

Post by Algerien1970 on Mon 8 Jun - 22:43

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In this tutorial, we will learn how to calculate the pH of weak acids and bases.[/size]
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Re: Chemistry videos

Post by Algerien1970 on Mon 8 Jun - 22:43

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Buffer solutions play an important role in many chemical and biological processes. In this tutorial, we will learn how buffers resist changes in pH.[/size]
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Re: Chemistry videos

Post by Algerien1970 on Mon 8 Jun - 22:44

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An introduction to the first law of thermodynamics, internal energy, heat, work, and PV diagrams[/size]
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An introduction to enthalpy and Hess's law[/size]
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An introduction to the Carnot cycle and entropy[/size]
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An introduction to Gibbs free energy and how free energy relates to spontaneity and the equilibrium constant[/size]
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Re: Chemistry videos

Post by Algerien1970 on Mon 8 Jun - 22:45

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Oxidation and reduction are powerful ideas for thinking about how charge is transferred within a reaction. As we'll see, it is something of a hypothetical, but it is, nonetheless, very useful.[/size]
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Batteries power much of our lives (literally). In this tutorial, we'll use our knowledge of oxidation and reduction to understand how Galvanic/Voltaic cells actually work.[/size]
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An introduction to calculating cell potentials[/size]
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An introduction to electrolytic cells and different types of batteries[/size]
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Re: Chemistry videos

Post by Algerien1970 on Mon 8 Jun - 22:46

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In this tutorial, we will examine the rates of chemical reactions and learn how to write rate laws.[/size]
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In this tutorial, we will convert rate laws into equations that allow us to determine the concentrations of reactants at any time during the course of a reaction.[/size]
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In this tutorial, we will learn about reaction mechanisms and how temperature and the activation energy affect the rate of a reaction.[/size]
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Re: Chemistry videos

Post by Algerien1970 on Mon 8 Jun - 22:47

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