CHEMISTRY COMMUNITY

Blanca Cervantes

Which homework problems for section 2F cover the different intermolecular forces and sigma and pi bonds? A lot of them are about hybridization, but that's not going to be in the test.

Blanca Cervantes

Which intermolecular forces are we expected to know exactly for the test? On Lavelle's "Molecular Shape and Structure" overview sheet, it is said that we have to know H-bonding, dipole-dipole and dispersion.

Blanca Cervantes

Will Lavelle be covering sigma and pi bonds on Monday?

Blanca Cervantes

I'm aware that Lavelle mentioned in class that test 2 will cover material not on the midterm up to Friday. However, which topics exactly will be on the test?

Blanca Cervantes

Problem 2E.29 asks which of the three isomers of dichlorobenzene, C6H4Cl2, are polar. Can anyone explain to me how they went about solving this problem? How do you determine which isomer is polar?

Blanca Cervantes

When determining if a molecule is polar or non polar on the test, is it expected of us to know the electronegativity values of the elements in the given molecules?

Blanca Cervantes

https://www.google.com/imgres?imgurl=https%3A%2F%2Fd2jmvrsizmvf4x.cloudfront.net%2FkIvBaJQ6Q4qL5PDMygrt_main-qimg-48559dab899b4a80bce6c154f5d5db80&imgrefurl=https%3A%2F%2Fsocratic.org%2Fquestions%2Fwhat-is-the-molecular-geometry-of-h2o-draw-its-vsepr-and-lewis-structure&docid=MWmdtbQsJ-0-HM&...

Blanca Cervantes

To answer the initial question, I think we need to understand how the spherical polar coordinates constitute the form of an atomic orbital.

Blanca Cervantes

This image could help with visualizing the spherical polar coordinates (not from the textbook): https://www.google.com/imgres?imgurl=https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2Fthumb%2F4%2F4f%2F3D_Spherical.svg%2F1200px-3D_Spherical.svg.png&imgrefurl=https%3A%2F%2Fen.wikipedia.org...

Blanca Cervantes

Well, spherical polar coordinates are needed to write down the form of an atomic orbital and to specify the location of each point around the nucleus. Each point is labeled with three coordinates (r, theta, phi).

Blanca Cervantes

In addition, the density of a cloud centered on the nucleus at each point represents the probability of finding an electron there. The densest regions of the cloud represent locations where the electron is most likely to be found.

Blanca Cervantes

A wave function is a mathematical description of the probability of a particle's quantum state as a function of r (the distance from the nucleus), theta (angle from the positive z axis), and phi (the angle about the z axis). Hence, the square of a wave function tells us the probability density of an...

Blanca Cervantes

What is the probability density and why is it represented as Ψ2 ("wave function squared")?

Blanca Cervantes

There most likely was a typo in the textbook question

Blanca Cervantes

Will professor Lavelle expect us to know the formula for, say, calcium hydroxide and ethyne in limiting reactant problems?

Blanca Cervantes

Can anybody explain how they went about solving the following problem?: Calculate the amount of urea molecules, OC(NH2)2, in 2.3 x 10^5g of urea, which is used in facial creams and, on a bigger scale, as an agricultural fertilizer. The correct answer is 3.8 x 10^3, but I keep getting a different num...

Blanca Cervantes

You most likely would be deducted points since stoichiometric coefficients must be the lowest whole number

CHEMISTRY COMMUNITY

Search found 17 matches

Molecular Shape and Structure

Intermolecular Forces

Re: Test #2

Test #2

Using Dipole moments to determine if a molecule is polar or non polar

Determining if a molecule is polar or non polar

Re: How to study for VSEPR?

Re: Atomic Orbitals [ENDORSED]

Re: Atomic Orbitals [ENDORSED]

Re: Atomic Orbitals [ENDORSED]

Re: Wave Function

Re: Wave Function

Quantum Mechanics

Re: Calculating amount of molecules

Limiting Reactants

Calculating amount of molecules

Re: Balancing Equations [ENDORSED]