CHEMISTRY COMMUNITY

Corryn Doll

How would I go about predicting the polarizability of Anions and the polarizing power of Cations? Is there a periodic trend which can be used to predict such things, or another way?

Corryn Doll

The book says that much research focuses around coordinate compounds "...partly because they participate in many biological reactions," but doesn"t exactly describe the biological functions of those naturally occurring coordinate compounds. So what are some of the biological functions...

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What are some possible options that could help reduce "acid rain"?

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What exactly causes acidic rain to form? Why is it possible for rain to be acidic?

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How can carbon dioxide lead to respiratory acidosis?

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Why do salts of weak bases produce acidic solutions?
Why do salts of weak acids produce basic solutions?

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Why do solutions of weak acids have a higher pH value than solutions of strong acids at the same concentration?

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Could someone explain to me a little more about what each parameter is and how it contributes to the overall intermolecular energy from the equation (E proportional to (a1-a2)/r^u)?

Thanks

Corryn Doll

What are some examples of intermolecular forces and hydrogen bonding in organic and biological molecules?

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How is covalent bond dissociation energy related to covalent bond multiplicity, atomic radius, and the presence of unpaired electrons?

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Can someone explain intermolecular forces a bit more to me please?

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What are some well-known examples of coordinate compounds that are used as chemotherapy drugs and why specifically do they use coordinate compounds?

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I understand that some ligands can be polydentate, or occupy more than one binding site simultaneously, however im not quite sure how to go about determining which ligands can be polydentate. Could someone help me out?

Thanks.

Corryn Doll

Im having a hard time calculating the oxidation number of metals as im not quite sure what the charges of d-block metals are and anything I have tried to look up says the charges can vary. So how do I figure out the oxidation number?

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No. Because the resonance structures include moving around double bonds, and double bonds are counted as one bond pair in the VSEPR model, then the molecular shape of each should be the same.

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due to there being 5 bonding pairs, it would seem as though the shape would result in a triagonal bipyramidal, however, when looking at the VSEPR formula AX3E2, we find that the shape is really T-shaped. If your not sure about the shape of something, make it a habit to always check the VSEPR model. ...

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In some cases the available valence electrons will only allow for a triple bond and lone pairs in order for all valence electrons to be used AND for each atom to have a full octet. For example, in drawing the Lewis Structure of NO+ (3.49 a.) : the valence electrons= -N=5 valence electrons -O=6 valen...

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The central atom will always be the one with the lowest ionization energy. To find this, you can look on the periodic table at were each atom lies. The ionization energy increases across a period and decreases down a group. Thus you want to look for the atom that is furthest to the left and closest ...

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Yes. The test is on Chapter 3, so I would ensure you know how to do all the problems from the homework from Outline 3, Chapter 3. If you can do these, you should be ready for the Quiz.

Hope this helped!! :)

Corryn Doll

In both cases you have a two atoms bonding together with 10 available valence electrons, thus the only way for both to have a proper octet is for a triple bond to occur between them. For example, in A) when calculating valence electrons we get: -N=5 valence electrons -O=6 valence electrons -charge= ...

Corryn Doll

For questions like 3.39, I believe both the Professor and TA (mine at least) have said that they do not require us to know chemical formulas based on names, especially since we have not covered this in class. If a question like this were to be on the test, they woud more than likely provide the name...

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The bond is ionic for metals because an ionic bond is formed by two oppositely charged ions and their attraction to one another. Ionic bonds form between a cation (which is generally a metal) and an anion (which is generally not a metal). The bond is polar/covalent for non-metals because it occurs t...

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Yes, it is because then N would not have its octet. Because N has 5 valence electrons and O has 4 and there is a + (meaning - 1 electron), 10 valence electrons are available when building the Lewis structure. Because there are only two (N and O), the only way both may have a filled octet with the 10...

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I was having trouble with this too, but i found a website that helped and Ill do my best to explain it in a way that will help. heres the link: https://www.khanacademy.org/science/chemistry/atomic-structure-and-properties/names-and-formulas-of-ionic-compounds/a/naming-monatomic-ions-and-ionic-compou...

Corryn Doll

One more thing. If you write out your molecular formula and find that it cannot be reduced as a ratio any more than you can write the same for the empirical formula as they can be the same.

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So to do these problems it is easiest to find the molecular formula first by counting the amount of atoms of each element and writing the formula out from that. Because the molecular formula is the formula that contains the actual number of the atoms, it can be created simply by counting the number ...

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Yes, they are essentially equivalent. Just different vocabulary for a different topic, but as far as i can tell they are synonymous.

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Isotopes are forms of the same element which have the same number of protons, but a different number of neutrons, thus giving a varying atomic mass, while the chemical properties of the element remain the same.

Hope this helps.

Corryn Doll

No. Wavelength does not have to be peak to peak, but it does have to be from one specific point on the wave to that same point on the next one. To be more clear it is easier to see how many cycles of waves there are within the time frame by looking at the peak-to-peak distance. However, be careful a...

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I believe he was meaning to convey the sense that equations in Quantum mechanics have specific units that are consistently used making it so that the answer given is always of a specific magnitude. In class he gave the example of the energy of an electron in the hydrogen atom. He explained that the ...

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For this specific structure, both the empirical and molecular formulas are going to be the same as the empirical formula represents the smallest ratio of each element needed. If you were to change it as you did, then you would in fact be writing an equation for a different structure entirely.

CHEMISTRY COMMUNITY

Search found 31 matches

Predicting polarizability and polarizing power

Biological functions of coordinate compounds

Reducing Acid Rain

Acid Rain

Carbon Dioxide and respiratory acidosis

Salts of weak bases producing acidic solutions

solution of weak acids with higher pH

Describing parameters contributing to intermolecular energy

Examples of intermolecular forces and hydrogen bonding

Relations between Covalent bond dissociation energy

Intermolecular forces

coordinate compounds as chemotherapy drugs

Determining if ligands can be polydentate.

Calculation Oxidatin Number

Re: Resonance structure effect on molecular shape

Re: HW 4.9

Re: Double Bond vs Triple Bond

Re: Central atom

Re: test 3 [ENDORSED]

Re: 3.49 a and c

Re: Naming Molecules

Re: Bonds between 1.5 and 2 [ENDORSED]

Re: 3.49

Re: Homework 3.25

Re: Quiz 1 Last Question Help [ENDORSED]

Re: Quiz 1 Last Question Help [ENDORSED]

Re: Wavelength

Re: Isotopes [ENDORSED]

Re: Wavelength [ENDORSED]

Re: Equations in Quantum

Re: Molecular to Empirical