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The species $\mathrm{H}_{3}^{+}$ is the simplest polyatomic ion. The geometry of the ion is that of an equilateral triangle.(a) Draw three resonance structures to represent the ion. (b) Given the following information $$2 \mathrm{H}+\mathrm{H}^{+} \longrightarrow \mathrm{H}_{3}^{+} \quad \Delta H^{\circ}=-849 \mathrm{kJ} / \mathrm{mol}$$ $$\text { and } \quad \mathrm{H}_{2} \longrightarrow 2 \mathrm{H} \quad \Delta H^{\circ}=436.4 \mathrm{kJ} / \mathrm{mol}$$ calculate $\Delta H^{\circ}$ for the reaction$$\mathrm{H}^{+}+\mathrm{H}_{2} \longrightarrow \mathrm{H}_{3}^{+}$$
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Chemistry 101
Chapter 9
Chemical Bonding I: Basic Concepts
Chemical Bonding
Carleton College
University of Central Florida
Lectures
04:16
In chemistry, a chemical bond is a lasting attraction between atoms that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between opposite charges, dipole–dipole attraction (see also polarization (chemistry)), or the sharing of electrons as in covalent bonding. The strength of chemical bonds between atoms ranges from the weakest to the strongest. Many types of bond exist between atoms, such as single, double, and triple bonds; and bonds of particular strength, including ionic and covalent bonds. A chemical bond is an attraction between atoms. This attraction may be seen as the result of different behaviors of the outermost or valence electrons of atoms. These behaviors merge into each other seamlessly in various circumstances, so that there is no clear line to be drawn between them. In general, strong or polar bonds are the result of the electron cloud of one atom being drawn towards the electron cloud of another atom, such that the negative or positive charge of the electron clouds increases. A bond is an attraction between atoms. This attraction may be seen as the result of different behaviors of the outermost or valence electrons of atoms. These behaviors merge into each other seamlessly in various circumstances, so that there is no clear line to be drawn between them. In general, strong or polar bonds are the result of the electron cloud of one atom being drawn towards the electron cloud of another atom, such that the negative or positive charge of the electron clouds increases
09:12
In chemistry, the octet rule is a rule that states that all atoms prefer to have eight electrons in their valence shell (outermost electron shell). A stable atom will have eight electrons in its valence shell, and will tend to gain, lose, or share electrons in order to achieve this configuration. The octet rule is an empirical observation rather than a fundamental principle, and hence its applicability is limited to the realm of valence electrons. The rule was proposed by the English chemist John Alexander Reina Newlands in 1875 and was named the "octet rule" by Gilbert N. Lewis in 1918.
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The species $\mathrm{H}_{3…
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The triatomic molecular io…
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Consider the generic react…
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Calculate $\Delta \mathrm{…
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01:41
Hello Today we'll be talking about this Very interesting I on right here. So first, let's draw a little structure for it. So first off, hydrogen has one of Valence electron. There are three of them and we lost one electron because it has a positive talk charge. So there is a total of two elections in this structure. We're already so we know that this has a triangular structure. So here is one form. Here's another form, and the last form is, ah, Bond between the bottom 200 Jin's. And so, if we kind of combine all of these structures, we will see that we will sort of have a structure like this. So these three Hodgins are sharing electrons. Now, let's take a look and try to calculate the energy for this reaction. So this is the reaction we want to get to. So the first thing we would dio would we would take this hydrogen and we would split it apart into two hydrogen atoms. And the energy for this stunt will be changed. For this would be 400 36.4 killer jewels per mole. And then once we have thes two hydrogen atoms. We can take those two hydrogen atoms and combine them with a proton to give that I on the cat eye on that we want. And that and the and they'll be changed. For this would be negative. 800 49. Kill it, Jules Permal. So you might notice that thes will cancel. And if you add them together, it will give the top equation. So if But if we want to find the until be changed for the equation above all we have to do is add these two together, and if you add them together, all right, you should get negative 413 killer jewels from all.
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