CHEMISTRY COMMUNITY

Brenton Hwee 2J

Do the Gauche and anti conformation only apply to butane, or does it also have a significance in the other cycloalkane conformations? Also, as seen on the example on page 108, does the conformation always go Gauche to anti conformation because it goes from lower to lowest energy?

Brenton Hwee 2J

I think usually you might see a common name prefix like "iso" when you are using IUPAC naming for a group that is on a substituent. An example would be like on page 96 on the course reader "isopropyl-cyclohexane" which utilizes the "iso" common name as a prefix to the p...

Brenton Hwee 2J

For the quiz and final and in general, do we have to memorize past the first 10 hydrocarbons for naming? In the course reader, it only names the first 10, while the organic textbook lists up to 20. Will we ever work with anything past 10 in this class when naming compounds because all the examples h...

Brenton Hwee 2J

What is the difference between nucleophiles and electrophiles from what we learned previously about electron transfer/sharing in ionic and covalent bonds? It seems like both deal with e- rich regions and negative and positives attracted to each other.

Brenton Hwee 2J

No, the order does not matter when they are separated by a comma. However, for the solids they are usually placed at the end of the cell diagram, and gases usually go right before the electrode, separated by a line.

Brenton Hwee 2J

If the order of the reactants are both first order, but the overall order reaction is 2, what does this tell us? Do we just use the individual reactants or do we we use the overall because the rate constant is dependent on both of the reactants?

Brenton Hwee 2J

If we know that all real processes are irreversible, then how do we know when to use w = -nRT ln V1/V2 instead of w = -P∆V and vice versa? For calculating entropy, do we never use w = -P∆V because it has to be a reversible expansion and isothermal?

Brenton Hwee 2J

I believe we do have to use this equation to solve for problems when finding positional/residual entropy, as seen in the example on the bottom of page 29 in the course reader. In the example, we know the degeneracy and use the Boltzmann equation to solve for entropy and determine that the system has...

Brenton Hwee 2J

I remember in class Dr. Lavelle said that the standard reaction enthalpy of O2 is 0. Why is that?

Brenton Hwee 2J

For the Schrodinger equation, why does a double derivative give the wave function back on the right hand side? (Question 2D 2015 Final Exam)

Brenton Hwee 2J

You add electrons to the more electronegative element and remove electrons from the less electronegative element.

Brenton Hwee 2J

Is there an exception for Cobalt ions too?

Brenton Hwee 2J

If electron affinity is highest in the top right corner of the periodic table, why does Chlorine have a higher electron affinity than Fluorine?

Brenton Hwee 2J

Can we use the Heisenberg Uncertainty Principle for all atoms or does it only apply to certain elements?

Brenton Hwee 2J

I know that intensity and the number of photons are related, but is there any equation or way to numerically calculate those values? Or are the numerical values not relevant to what we're learning?

CHEMISTRY COMMUNITY

Search found 15 matches

Gauche and Anti conformation

Re: Common name & IUPAC naming

Hydrocarbons memorizations

Nucleophiles and Electrophiles

Re: Cell Diagram

Order of reactions

Irreversible vs reversible pathway

Re: Boltzmann Equation

Standard Reaction Enthalpy of O2

Hamiltonian for Schrodinger [ENDORSED]

Re: MO adding/deleting e-

Re: Half Full d^5 and Full d^10 Subshells

Re: Electron Affinity

Re: Uncertainty

Re: Photoelectric Effect [ENDORSED]