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HF is a weak acid, but its strength increases wit…
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Problem 117 Medium Difficulty

(a) Use VSEPR to predict the geometry of the hydronium ion, $\mathrm{H}_{3} \mathrm{O}^{+}$. (b) The $\mathrm{O}$ atom in $\mathrm{H}_{2} \mathrm{O}$ has two lone pairs and in principle can accept two $\mathrm{H}^{+}$ ions. Explain why the species $\mathrm{H}_{4} \mathrm{O}^{2+}$ does not exist. What would be its geometry if it did exist?

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Chemistry 102
Chemistry

Chapter 15

Acids and Bases

Related Topics

Liquids

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03:07
Liquids - Intro

A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. As such, a liquid is one of the four fundamental states of matter (the others being solid, gas and plasma). A liquid is made up of tiny vibrating particles of matter, such as atoms, held together by intermolecular bonds. Water is, by far, the most common liquid on Earth. Like a gas, a liquid is able to flow and take the shape of a container. Most liquids resist compression, although others can be compressed. Unlike a gas, a liquid does not disperse to fill every space of a container, and maintains a fairly constant density. A distinctive property of the liquid state is surface tension, leading to wetting phenomena.
Video Thumbnail

04:38
Comparison Of Gases Liquids And Solids

A liquid is a state of matter in which a substance changes its shape easily and takes the form of its container, and in which the substance retains a constant volume independent of pressure. As a result of this, a liquid does not maintain a definite shape, and its volume is variable. The characteristic properties of a liquid are surface tension, viscosity, and capillarity. The liquid state has a definite volume, but it also has a definite surface. The volume is uniform throughout the whole of the liquid. Solids have a fixed shape and a definite volume, but they do not have a definite surface. The volume of a solid does not vary, but the volume of a liquid may vary.
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Video Transcript

this problem asks us to look at the law Molecular Jarman geometry as relates to the hydro name man. I'm gonna start this by drying a water molecule with its two unshared pairs of electrons. And we all know that water is extremely polar. It's got a bent molecular geometry and it's got a bond angle that's much reduced from the Tetra hydro 107 down to a 104.5. We'll just call the 105 degree bond angle. I don't care that much, But when water is approached by another hydrogen, let me draw this over here. I've got my h oh h have a pair and a pair. Ah, hydrogen can attach itself to that pair giving me a plus one charge. Now the molecular geometry This will be Trigano plainer or excuse me, Trigano Pair middle. You hear this? Pronounced Reagan or tribunal doesn't really matter. I'll call it Trigano Pierre Middle, which is like a little three legged spider. And it's got one John shared pair of electrons right here, which means that this still exhibits planete. So that is part one of this question. Um, the O Adam, this still is an unshared pair of electrons, and the next question says, Why doesn't this happen? And I'll do it in this color cause this shouldn't happen. So I've got my h bonded to a no bonded to an age. We know we can take a pair of electron right here to give the Htoo Why doesn't take one right here to give us an H 20? Because this, when I have this excess charge, just says I don't want to do this. It doesn't want to take another one If it did, if we could make an H 40 if H for 02 plus was a thing which it isn't, what would the molecular geo geometry be? That would be a tetrahedron, but doesn't matter, because it won't do that. That's it.

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Top Chemistry 102 Educators
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Video Thumbnail

03:07
Liquids - Intro

A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. As such, a liquid is one of the four fundamental states of matter (the others being solid, gas and plasma). A liquid is made up of tiny vibrating particles of matter, such as atoms, held together by intermolecular bonds. Water is, by far, the most common liquid on Earth. Like a gas, a liquid is able to flow and take the shape of a container. Most liquids resist compression, although others can be compressed. Unlike a gas, a liquid does not disperse to fill every space of a container, and maintains a fairly constant density. A distinctive property of the liquid state is surface tension, leading to wetting phenomena.
Video Thumbnail

04:38
Comparison Of Gases Liquids And Solids

A liquid is a state of matter in which a substance changes its shape easily and takes the form of its container, and in which the substance retains a constant volume independent of pressure. As a result of this, a liquid does not maintain a definite shape, and its volume is variable. The characteristic properties of a liquid are surface tension, viscosity, and capillarity. The liquid state has a definite volume, but it also has a definite surface. The volume is uniform throughout the whole of the liquid. Solids have a fixed shape and a definite volume, but they do not have a definite surface. The volume of a solid does not vary, but the volume of a liquid may vary.
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