CHEMISTRY COMMUNITY

deeksha1I

How small should x be for us to ignore it when doing weak acid base equilibrium ICE problems?
Thank you!

deeksha1I

Adding inert gases to a reaction has no effect on the equilibrium of a reaction, correct?
Thank you!

deeksha1I

I believe the ligands need to be listed in alphabetical order.

deeksha1I

If the overall complex has a negative charge, then -ate is added to the stem of the metal's name.

For example)
[Ni(CN)4]2- would be tetracyanidonickelate(II) ion

Hope this helps!

deeksha1I

When calculating the equilibrium composition of a mixture using ICE and x's, what happens when you get two positive K values after solving the quadratic formula, since that is a possibility?

deeksha1I

Yes the reaction quotient is different only because the reaction is not at equilibrium.
But Q and Qsub(c) and Qsub(p) are all calculated the same way as k.

deeksha1I

Formal charge is the electric charge of an atom in a molecule assigned on the assumption that the bonding is nonpolar covalent. So like, #valence electrons - ( #lone pairs + (#shared electrons/2)) We have used formal charge to determine, when drawing lewis structures, which structure is the most sta...

deeksha1I

Just to clarify: the energy of hybridized orbitals is an average of the normal orbitals, correct?

deeksha1I

The radical goes on the chlorine atom because oxygen is more electronegative and therefore is prioritized to have an octet before chlorine.

deeksha1I

On the midterm, would we have to draw all the resonance structures if they just as for a Lewis structure, and not specifically the resonance structures? Or do we just draw the most stable structure?
Thanks!

deeksha1I

Just clarifying: When we're drawing Lewis Structures for this midterm, we won't have to take into account the shape and structure right?
Thank You!

deeksha1I

In one of the lectures, Dr. Lavelle said that "high distorted electrons" are described as being highly polarizable and ions which cause large distortions are described as having high polarizing power. What exactly does this mean?
Thank you!

deeksha1I

Which element of each of the following pairs has the higher electron affinity c) chlorine or bromine (answer: Chlorine) d) lithium or sodium (answer: Lithium) I understand that electron affinities are highest toward the right of the periodic table, but what about down and up a group? Is there a tren...

deeksha1I

In the lecture, Dr. Lavelle explained that ionization energy is the energy needed to remove an electron from an atom in the gas phase, while the threshold energy (work function) is the energy required to remove an electron from a solid. Hope that helps!

deeksha1I

1.55) If an absorption occurs in the infrared spectrum at 3600 cm^-1, what is the frequency of the radiation that corresponds to that absorption? I understand that we need to use E = (v/c), and I understand how to the get the right answer once you convert the speed of light to meters. But I'm wonder...

deeksha1I

Just to clarify, we only have to include the x, y, and z for the p orbitals? Because the d orbital have nodal planes too.

deeksha1I

Are copper and chromium the only elements that are like this?

deeksha1I

Hi! I was wondering if we need to know about Balmer, Lyman, Paschen, and the Bracket Series for the test this week.
Thank you!

deeksha1I

Hi! Can anyone explain to me what Dr. Lavelle meant by "As n -> infinity, energy -> 0" in the lecture on Friday?
Thank you!

deeksha1I

We haven't covered this topic in class yet. But from my understanding, net ionic equations are basically two charged elements that undergo a chemical reaction. So in this case, Cu has a charge of 2+ and OH has a charge of 1-, so when Cu(OH)subscript2 forms, there has to be 2 OH's to balance out the ...

deeksha1I

I believe Dr. Lavelle said that a periodic table and a list of equations/constants (that we probably won't need for this test) will be provided. We need to bring a scientific calculator and a writing utensil.

CHEMISTRY COMMUNITY

Search found 21 matches

Assuming X is small

Inert gases

Re: Order of Ligands

Re: Cobalt-cobaltate

Equilibrium Composition

Re: Difference betwen constant and quotient?

Re: Oxidation State vs. Formal Charge

Energy of Hybrid Orbitals

Re: 3.59

Resonance Structures for the Midterm

Taking into Account Shape and Structure

Highly Polarizable

Problem 2.67 (c) and (d)

Re: Work function v. Ionization Energy

Problem 1.55

Re: Px, Py, Pz

Re: expected electron configuration of chromium [ENDORSED]

Balmer, Lyman, Paschen, and Bracket Series

Atomic Spectra and Energy Levels

Re: M9 Part A

Re: What will be provided?