CHEMISTRY COMMUNITY

Chu 3J

In question 4.40 in the Introduction to Organic Chemistry workbook, how do we know if the reactants or products are thermodynamically stable. Also how do we determine if a reaction is kinetically controlled?

Chu 3J

In an electrophilic addition mechanism, how do we know which one is the nucleophile and which is the electrophile?

Chu 3J

How do you know if a molecule in a proposed reaction mechanism is an intermediate or a catalyst?

Chu 3J

How do you know which of the reactions in a proposed reaction mechanism is the determining/slow reaction?

Chu 3J

Why is q=nC (delta)t sometimes written as q=C (delta)t?

Chu 3J

I am still unsure as to how the cell battery works exactly. More specifically, what is the difference between the "interface between phases" and the salt bridge?

Chu 3J

What exactly are the degrees of freedom for a gas molecule and how would one calculate this number for diatomic and monatomic ideal gases?

Chu 3J

Why is it that if "G" is a minimum then any negative value changes are always spontaneous?

Chu 3J

I am still unsure as to what exactly degeneracy is, and how degeneracy is related to entropy.

Chu 3J

If enthalpy is equal to heat (at constant pressure), and enthalpy is a state function, why isn't heat (q) considered a state function as well?

Chu 3J

I know that Ka2 is typically smaller than Ka1, but why exactly is this the case? It was mentioned in the lecture that it was because it is harder for the molecule to lose another H atom, but I am not sure why it is harder for the molecule to lose another H atom.

Chu 3J

I am confused as to why oxalato is considered bidentate, even though it has at least two lone pairs on each of the four oxygen atoms. If each oxygen atom were only able to form one of these types of bonds, wouldn't oxalato be able to donate 4 electron pairs making it a polydentate?

Chu 3J

When going from the chemical formula, such as [Cr(NH3)3(OH2)2(OH)]Cl, to the written formula we write triamminediaquahydroxidochromium (II) chloride, with the ligands in alphabetical order, but how do we arrange the ligands when going from the written formula to the chemical formula?

Chu 3J

I noticed that there were two gas constants, R=8.314 JxK^-1 x mol^-1 and R=.0821 Lxatm/molxK
which types of problems would require the first one and which types of problems would require the second constant?

Chu 3J

I was reading Table 17.4 on page 742, I noticed that there are only ligands with either a neutral charge or negative charge, why aren't there any positively charged ligands?

Chu 3J

In the lecture we determined that XeF4 had 6 regions of electron density, but when determining its 3-d shape we ignore the two lone pairs on the opposite poles of XeF4 in order to get a square planar shape. Why do we ignore the lone pairs when determining its shape?

Chu 3J

Why does the dissociation energy get smaller as the atom get bigger, wouldn't it take more energy to dissociate a large atom compared to a smaller one?

Chu 3J

If this orbital has a ring around it, would it still have 2 nodes like the other d orbitals?

Chu 3J

In the Chemical Principles book, it mentions that electrons are ejected regardless of the intensity, assuming that the radiation is within the threshold value. Would electrons still be ejected if the intensity was zero or negligible?

CHEMISTRY COMMUNITY

Search found 19 matches

Reaction Profiles

Mechanisms for electrophilic addition

Intermediates and Catalysts in a reaction mechanism

Determining the slow reaction mechanism

Formula for heat

Cell Battery Diagram

How do you find the degrees of freedom

Gibbs Free Energy

Definition of degeneracy and relationship to entropy

State Properties

Ka2 and Ka1

Bidentate or Polydentate

Written Formula to Chemical Formula

Gas Constant

Ligands

VSEPR Shape

Dissociation Energies

Dz^2 Orbital

Intensity's Impact on the Photoelectric Effect