CHEMISTRY COMMUNITY

William Shu 1G

Torsional strain is a result of eclisped hydrogens. If you observe the chair conformation on cyclohexanes, they have only single bonds but have no torsional strain due to the staggered hydrogens.

William Shu 1G

Assuming time is in seconds:
Zero order: k has units M/s
First order: k has units s^-1
Second order: k has units M^-1 s^-1

William Shu 1G

Some common names such as iso- prefixes are also used as substituents in IUPAC naming, but as for the overall picture I feel like Dr. Lavelle leans toward IUPAC naming and wouldn't require both on the final. Not sure though, so if someone else could confirm this that'd be great!

William Shu 1G

I'm fairly certain since each week for posts ends at midnight every Sunday then time does in fact count when checking how many posts one has made.

William Shu 1G

There is no change in volume of the total system. Yes, the valve is being opened inside the system, but the system is not interacting with the surroundings in any way. Also, if you use the equation q=-w after knowing q, then you could also find that w=0. Hope this helps!

William Shu 1G

To add on to that, since it is a solvent for the reaction, the concentration of water is in excess and therefore would not have a contribution to the rate of the reaction.

William Shu 1G

Ashley Curtis 2O wrote:I am having trouble viewing the midterm review session. Is there any one else having this problem? It says the plugin is not supported when I try and watch it.

I believe you can also click on the link to download it, if the plug-in is not working.

William Shu 1G

Can someone please explain why 3 is an answer for #7? I understand why number 2 is an answer. I believe 3 is an answer because by following PV = nRT, if temperature increases and pressure and number of moles stays constant, the volume must also increase to match the temperature and therefore the en...

William Shu 1G

Not 100% sure, but I think it has to do with the fact that an irreversible process is one that takes the system away from equilibrium. A reversible process would imply that infinitely small changes are occurring while the external pressure is slowly increasing, and therefore the piston would be movi...

William Shu 1G

How I understand it is that internal energy is simply the value of energy in the system at any given point in time and it doesn't depend on fluctuation, only on final and initial values. Heat and work may be how it gets there, but mathematically internal energy still remains as a state function. I h...

William Shu 1G

In lecture, it was said that the double bond is broken and a single bond is formed, since those are really the only ones we can measure rather than simply breaking one of the bonds in a double bond structure. Hope this helps!

William Shu 1G

Essentially, it is just the value of the concentration of products over reactants that tells you where the reaction sits at equilibrium. Seeing as the reaction will always shift toward equilibrium, if you know Kc then you can determine how the reaction will behave when you have a certain amount of r...

William Shu 1G

Also keep in mind that a pressure change as a result of adding inert gas to the system will have no effect on the concentrations of the other gases, thereby having no change in the state of the reaction.

William Shu 1G

A ligand that is polydentate has multiple binding sites, while a ligand that is monodentate only has one binding site. Hope this helps!

William Shu 1G

Is it just a matter of determining which atom has a higher electronegativity, and then drawing the dipole moment from there?

William Shu 1G

I'm fairly certain that as a wavelength, you can keep the units as nanometers.

William Shu 1G

Personally I don't quite understand the correspondence between energy and "The extent of the change in the electrical field at a given point". Could someone explain this aspect please? Thank you!

William Shu 1G

To my knowledge, visible light is visible because the photons in the light are picked up by photoreceptor cells in your eyes that then transmit the information to the brain for processing. As for color filters, the filter simply absorbs the colors that are not passing through the filter, which would...

CHEMISTRY COMMUNITY

Search found 18 matches

Re: Torsional Strain

Re: Units for Rate Constants

Re: Common names on final

Re: Posts

Re: Question from midterm

Re: Pre Equilibria

Re: Midterm Winter 2017

Re: Quiz 1 Preparation Answers

Re: Reversible/Irreversible processes In the book

Re: Question about state functions

Re: Bond Enthalpy Question

Re: What does Kc tell us?

Re: Keeping Equilibrium with Pressure

Re: Polydentrites/Monodentrite [ENDORSED]

Re: Dipole Moment in a Lewis Structure

Re: Practice Quiz 1 Question [ENDORSED]

Re: Chapter 1 Homework Question [ENDORSED]

Re: EM radiation and Colors