CHEMISTRY COMMUNITY

Gurpreet Khamba 1J

Pi and Sigma bonds don't change with resonance structures. As you create the lewis structures, you understand that the representations do not accurately represent the molecule.

Gurpreet Khamba 1J

Yes. Acids have as many Ka values as the H that it has.

Gurpreet Khamba 1J

To get a value lower than the actual makes me believe that you rounded values as you continued solving. Significant figures comes into play at the end, once the answer is determined. I do not believe you will get full credit because of that but perhaps you will only lose one point.

Gurpreet Khamba 1J

Since it is the oxygen that will bond with the metal central atom.

Gurpreet Khamba 1J

The VESPR model of CO2 is linear. Although it has a total of 4 bonds, the bonds are simply summarized as existing between the Carbon and O's. To answer your question, the existence of double bonds is disregarded in VESPR models since it would get too hectic to include their interactions in the model.

Gurpreet Khamba 1J

It comes down to the way the bond forms. If we look at the double bond in carbon atoms, there is a pi bond forming above and below the plane of the carbon atoms. The bond, which is enabling the sharing of an electron, breaking would imply the p-orbitals not overlapping and allowing the sharing. Sinc...

Gurpreet Khamba 1J

In molecular shapes, the radicals are less repulsive than paired e-. As such, if a radical replaced a pair, the other atoms would get closer to the unpaired e-, and the angle, wider.

Gurpreet Khamba 1J

When you find the shape of a molecule, sometimes you will end up with a shape that has several atoms connecting to the center. If the center only needs 8 e- and you have plenty of electrons then things are fine. Resonance structures come into play when these connecting atoms can be changed around. I...

Gurpreet Khamba 1J

It is bent and not linear when unpaired e- are present. As such, when writing the lewis structure, when the element has lone pair- e- and is connected to two other elements, you can tell it will be bent. In other words, when the central element is bonded to two other elements and has at least one lo...

Gurpreet Khamba 1J

Since Cl is in the 3rd period, and at the end, is more likely to gain e-, it is possible for it to take electrons if needed. An example of this is ClF3.
There are 28 e- and F will not take more than 8 leaving Cl with an extra 4 e-.

Gurpreet Khamba 1J

its done through energy level so it should be 1s 2s 2p 3s 3p 3d 4s 4p, etc. the d comes after the p.
Of course, you can substitute a noble gas in the notation to make it shorter, e.g. Ni = [Ar] 3d^8 4s^2

Gurpreet Khamba 1J

This is because when an electron has a position closer to the nucleus, l=1 or even 1=0, it blocks off more attraction than one in a position after it, in this case l=2.

Gurpreet Khamba 1J

d has its special set. As the Professor mentioned, they are xy, xz, yz, (x^2) - (y^2), and z^2.
It does not appear to be important though but it wouldn't hurt to know the major differences, in terms of planes, between the 1st three and other two.

Gurpreet Khamba 1J

Gurpreet Khamba 1J

Only at the subatomic level do outside forces, such as those incurred by measurement (for example, with a light to start time) affect the recording of the data. Because they are so small, and can be easy influenced by everything.

Gurpreet Khamba 1J

Since you cannot know the exact location of an electron in its orbital at all times, orbitals are depicted as clouds of probability. The only thing you can know for sure is that an electron can be find in the cloud, because of the pull from the center, the electron has to remain within a certain ran...

Gurpreet Khamba 1J

In the Lyman series, eletrons come to rest at n=1 whereas in the Balmer series, they come to rest at n=2. The latter records the light depicted in the visible light spectrum, the former records the light in the UV spectrum. Their are other series as well, but in short, the different series simply re...

Gurpreet Khamba 1J

It can also be used to find E (Energy) when the frequency is not known. To do this, you would use the relation v has with c (speed of light) and λ (wavelength). This results in the equation: E = (hv)/λ The constant is also used in the uncertainty principle. Max Planck received a Nobel Prize in 1981 ...

CHEMISTRY COMMUNITY

Search found 18 matches

Re: Pi and sigma bonds [ENDORSED]

Re: Polyprotic Acid Ka [ENDORSED]

Re: Significant Figures [ENDORSED]

Re: H20 Dentate [ENDORSED]

Re: Double bonds vs. single bonds

Re: Pi Bonds

Re: Radicals

Re: Resonance Structures and Molecular Shapes

Re: Shapes

Re: Cl as an Expanded Octet

Re: Confusion regarded e- configuration

Re: electron shielding 2.37(c) [ENDORSED]

Re: D Orbitals [ENDORSED]

Re: Single Electons

Re: The uncertainty principle [ENDORSED]

Re: Orbitals as Probability

Re: Lyman vs Balmer Series

Re: Planck's Constant