Search found 20 matches

by leilawilliams16
Sun Dec 10, 2017 1:54 pm
Forum: Biological Examples
Topic: Hemoglobin
Replies: 5
Views: 505

Hemoglobin

What is the coordination compound and transition metal for Hemoglobin?
by leilawilliams16
Sun Dec 10, 2017 1:52 pm
Forum: Coordinate Covalent Bonds
Topic: transition metals
Replies: 3
Views: 506

transition metals

How do you determine the number of electrons for a transition metal in a coordination compound Lewis structure?
by leilawilliams16
Sun Dec 10, 2017 1:50 pm
Forum: DeBroglie Equation
Topic: Question from final [ENDORSED]
Replies: 1
Views: 412

Question from final [ENDORSED]

For question 3 (I believe?) on the final, what would classic particles like dust do when sent through the slits?
by leilawilliams16
Sun Dec 10, 2017 1:48 pm
Forum: Lewis Structures
Topic: SO2
Replies: 5
Views: 307

SO2

Is the lewis structure for SO2 most stable with one or two double bonds? Different sources say different things
by leilawilliams16
Sun Nov 26, 2017 11:21 pm
Forum: Ideal Gases
Topic: R in PV=nRT [ENDORSED]
Replies: 7
Views: 374

Re: R in PV=nRT [ENDORSED]

Is this the same as Reidberg's constant?
by leilawilliams16
Sun Nov 26, 2017 11:17 pm
Forum: Equilibrium Constants & Calculating Concentrations
Topic: convertine to partial pressure
Replies: 2
Views: 182

Re: convertine to partial pressure

The conversion equation is PV=nRT, where P=pressure (atm), V=volume(L), n=number moles, R= Reidberg's gas constant, and T= temperature(Kelvin)
by leilawilliams16
Fri Nov 17, 2017 4:07 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: VSEPR and Electrons
Replies: 3
Views: 199

Re: VSEPR and Electrons

In relation to the previous reply, since molecular geometry only considers the bonds, do you still indicate electron repulsion and modified bond angle? This confused me
by leilawilliams16
Fri Nov 17, 2017 4:01 pm
Forum: Hybridization
Topic: 4.45
Replies: 2
Views: 237

4.45

Can someone walk me through question 4.45?
"Describe the structure of the formaldehyde molecule, CH2O, in terms of hybrid orbitals, bond angles, and sigma and pi bonds. The C atom is the central atom to which the other 3 atoms are attached."
by leilawilliams16
Thu Nov 09, 2017 9:58 pm
Forum: Lewis Structures
Topic: Stability/ Midterm [ENDORSED]
Replies: 2
Views: 189

Stability/ Midterm [ENDORSED]

If the Lewis structure I found for the compounds on the midterm had all formal charges equal to zero, was that the most stable? Is the structure with formal charges equal to zero the most stable in all cases, including radicals?
by leilawilliams16
Thu Nov 09, 2017 9:56 pm
Forum: Ionic & Covalent Bonds
Topic: Midterm
Replies: 6
Views: 389

Midterm

What were the correct answers for the bond identifications (ionic, non polar, polar) on the midterm? I believe one molecule was KCl and another was N2 but I forget the third.
by leilawilliams16
Fri Nov 03, 2017 5:12 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Only certain central atoms have a full octet?
Replies: 4
Views: 283

Re: Only certain central atoms have a full octet?

So should we always calculate formal charge before drawing the diagram or is this semi-unique?
by leilawilliams16
Fri Nov 03, 2017 5:10 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: 3D shape Lewis Diagrams
Replies: 4
Views: 242

3D shape Lewis Diagrams

When we are asked to draw a Lewis diagram, do we need to know how to draw the shaded, 3D version as well?
by leilawilliams16
Sun Oct 29, 2017 6:31 pm
Forum: Octet Exceptions
Topic: Homework 3.57 part b [ENDORSED]
Replies: 4
Views: 449

Re: Homework 3.57 part b [ENDORSED]

Would we be asked something like that, where the molecule we are given has an octet exception, on a test?
by leilawilliams16
Sun Oct 29, 2017 6:28 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: test 3
Replies: 2
Views: 208

test 3

What exactly will test 3 cover? Which equations are the most relevant? There are some in the book we have ignored in class, thanks!
by leilawilliams16
Thu Oct 19, 2017 2:37 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Heisenberg Uncertainty Equation
Replies: 7
Views: 356

Re: Heisenberg Uncertainty Equation

can someone provide an example of how this principle is applied in an actual problem? I understand the concept but I haven't really understood how it translates to a real situation
by leilawilliams16
Thu Oct 19, 2017 2:35 pm
Forum: Properties of Electrons
Topic: h variable
Replies: 2
Views: 236

h variable

when does h represent Planck's constant and when does it represent frequency? how do I differentiate
by leilawilliams16
Sun Oct 15, 2017 5:55 pm
Forum: Quantum Numbers and The H-Atom
Topic: Quantized Energy
Replies: 5
Views: 398

Re: Quantized Energy

what exactly is the relationship between quantized energy and the n energy levels? I am a little confused
by leilawilliams16
Sun Oct 15, 2017 5:51 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Question about Atomic Spectroscopy
Replies: 4
Views: 257

Re: Question about Atomic Spectroscopy

wait so if every element has a unique spectroscopy then how do our problems all coincide with the same spectrums/ do we need to memorize the spectrum lines (Laymen series etc)???
by leilawilliams16
Sun Oct 08, 2017 7:51 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Sig Figs [ENDORSED]
Replies: 4
Views: 372

Sig Figs [ENDORSED]

My high school chem teacher did not stress this!!!! please explain SOS
by leilawilliams16
Sun Oct 08, 2017 7:49 pm
Forum: Limiting Reactant Calculations
Topic: Reactant vs. Reagent [ENDORSED]
Replies: 23
Views: 6917

Re: Reactant vs. Reagent [ENDORSED]

so you won't get marked down for interchanging them on the tests?

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