Bond Length

[Viviana Velasquez]

How do we determine bond lengths?

[chemboi]

They are experimentally determined.

[Dan M -3E]

We don't determine bond lengths ourselves, we are given the lengths because they have been experimentally found from repeated experiments of different molecules involving the same atom.

[Anna Chen 1K]

Bond length is determined by the bond order, or the number of bonded electrons. This has to be derived from experiments.

[Jasmine Summers 4G]

As mentioned, it is determined experimentally. We just need to know that double bonds are stronger and shorter than single bonds.

[205154661_Dis2J]

The bond length is determined experimentally, so we do not determine the bond lengths ourselves.

[Merin Padayatty 3G]

The exact bond length is derived from experiments, but relative bond lengths can be determined from bond order.

[annikaying]

You have to be given the actual bond length from previous experiments but there are general guidelines such as double bonds being shorter than single bonds.

[Bita Ghanei 1F]

single bonds are longest and weakest, triple bonds are shortest and strongest

[Megan Jung 3A]

bond lengths are determined experimentally. However, we can compare the bond lengths of different compounds through periodic trends and atomic radii.

[Natalie Nartz 4F]

We don't actually have to calculate bond length quantitatively. Just remember single bonds are longer than double and triple bonds

[lwon Dis2I]

I have not learned anything about Angstroms and cannot find a lot about it online. Can someone walk me through how to solve the problem below?

All of the organic compounds contain C and H as their essential elements, the bond length of C-H is 110 pm. Express the C-H bond length in Angstrom.

[David Chibukhchian 2G]

I have not learned anything about Angstroms and cannot find a lot about it online. Can someone walk me through how to solve the problem below?

All of the organic compounds contain C and H as their essential elements, the bond length of C-H is 110 pm. Express the C-H bond length in Angstrom.

Basically, one Ansgtrom is equal to 10^-10 meters. You can use that as a reference in this situation to help you find your answer. 110 pm is the same as 110 x 10^-12 m. If you plug that into your calculator, you can see that you get 1.1 x 10^-10 meters. Thus, this means there are 1.1 Angstroms in the C-H bond length if one Angstrom is 10^-10 meters. I hope that makes sense!!

[Jessica Katz]

bond length can be done experimentally, but it can be estimated by doing a lewis structure of the molecule and see whether it is a triple, double, or single bond because that will tell you its relative length compared to the other bonds in the molecule. Triple bond is the shortest while single bond is the longest and weakest.

[Kelly Yun 2I]

So would that mean that breaking a triple bond would release the most amount of energy?

[Kiyoka Kim 3C]

Yes. Because triple bonds are the strongest, they require more energy compared to single and double bonds to break.

[Inderpal Singh 2L]

Triple bonds are the strongest bond so they would indeed require more energy than single and double bonds to break.

[Taber Ball 1F]

Hi! So bond length and bond strength are inversely related meaning that as the bond length increases, its strength decreases and vise-versa. I found this website which compares different examples of bonds (single, double triple) and their lengths and energy (see table 9.4). Hope you guys find this helpful!

https://openstax.org/books/chemistry-at ... lent-bonds

[DominicMalilay 1F]

x-ray diffraction is used to determine the bond length.

[DavidTabib 3H]

They are experimentally found so we don't need to find it ourselves.

[Muskaan Abdul-Sattar]

They are found experimentally!

[LovepreetSran_3H]

Bond lengths are experimentally determined.

[FionaHunter21]

So shorter bond lengths have higher energies right? Since they are stronger the energy of the bond is more negative, but is it still considered higher energy?