Search found 30 matches
- Wed Dec 05, 2018 6:53 pm
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: Final Exam
- Replies: 7
- Views: 719
Re: Final Exam
I believe so. Doing the homework problems helps a lot with knowing how to calculate pH or pOH for strong and weak bases and acids.
- Wed Dec 05, 2018 6:49 pm
- Forum: Naming
- Topic: Water as a ligand
- Replies: 5
- Views: 623
Re: Water as a ligand
Would using OH2 instead of H2O be wrong on a test? Is it not interchangable?
- Wed Dec 05, 2018 6:48 pm
- Forum: Naming
- Topic: OH2 vs H2O
- Replies: 5
- Views: 536
Re: OH2 vs H2O
I don't think so Cienna, but I would ask your TA first
- Wed Dec 05, 2018 6:46 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Coordination Number
- Replies: 7
- Views: 639
Re: Coordination Number
What does the term "coordination" refer to with the concept of "coordination number"
- Wed Dec 05, 2018 6:44 pm
- Forum: Lewis Acids & Bases
- Topic: Weak and Strong Acids/Bases
- Replies: 7
- Views: 785
Re: Weak and Strong Acids/Bases
What makes the weak acids/bases weak and the strong acids/bases strong?
- Wed Dec 05, 2018 6:43 pm
- Forum: Lewis Acids & Bases
- Topic: Identifying the acid and base
- Replies: 3
- Views: 470
Re: Identifying the acid and base
Can this idea be applied to identifying any compound?
- Sun Nov 25, 2018 8:16 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Polarity
- Replies: 3
- Views: 381
Re: Polarity
Thank you Michael, this really clarified the topic for me!!
- Sun Nov 25, 2018 8:15 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Exceptions to VSEPR
- Replies: 1
- Views: 199
Exceptions to VSEPR
Are there any compounds that serve as exceptions to the formulas we've learned in class?
- Sun Nov 25, 2018 8:14 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: 4.19 6th edition
- Replies: 4
- Views: 478
Re: 4.19 6th edition
When dealing with multiple compounds bonding to each other, what is the best way to determine its molecular shape?
- Sun Nov 25, 2018 8:12 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Naming the Shape
- Replies: 16
- Views: 1285
Re: Naming the Shape
Will we ever be told to draw out the vsepr model for a molecule?
- Sun Nov 25, 2018 8:11 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: 2 Lone Pairs, Placement
- Replies: 3
- Views: 684
Re: 2 Lone Pairs, Placement
I ran into this same problem and had a difficult time understanding what to do. I just don't understand why we cannot treat the two molecules the same way.
- Sun Nov 25, 2018 8:10 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Shapes Not covered in Lecture
- Replies: 10
- Views: 1152
Re: Shapes Not covered in Lecture
Would we need to know the specific bond angles of each molecule?
- Sun Nov 11, 2018 3:09 pm
- Forum: Formal Charge and Oxidation Numbers
- Topic: Formal Charge and the Octet Rule
- Replies: 6
- Views: 732
Re: Formal Charge and the Octet Rule
The formal charge must always equal to the charge of the entire molecule.
- Sun Nov 11, 2018 3:08 pm
- Forum: Lewis Structures
- Topic: Formal Charge
- Replies: 14
- Views: 1325
Re: Formal Charge
An easy way to remember how to find formal charge is take the atom's valence electrons and subtract it with the number of dots and lines around it on the lewis structure
- Sun Nov 11, 2018 3:01 pm
- Forum: Resonance Structures
- Topic: Resonance Structures on the Midterm
- Replies: 3
- Views: 347
Re: Resonance Structures on the Midterm
I think there was a resonance structure question on the midterm but it did not specifically state to draw resonance so would one structure suffice?
- Sun Nov 04, 2018 2:08 pm
- Forum: Electronegativity
- Topic: Electron Affinity
- Replies: 3
- Views: 391
Re: Electron Affinity
An exception to take note of when viewing trends on the periodic table is that of Nitrogen and Carbon. Due to Nitrogen's half sub shell, it has greater stability and doesn't need an electron as much as Carbon does so that means Nitrogen has a lower electron affinity than Carbon.
- Sun Nov 04, 2018 2:05 pm
- Forum: Electronegativity
- Topic: Periodic Trends
- Replies: 10
- Views: 1244
Re: Periodic Trends
Some exceptions include the ionization energy of Oxygen and Nitrogen. Nitrogen has a lower ionization energy than Oxygen because Nitrogen's half sub shell offers it more stability than Oxygen.
- Sun Nov 04, 2018 1:55 pm
- Forum: Administrative Questions and Class Announcements
- Topic: MIDTERM PRACTICE - Garlic Bread Review Session [ENDORSED]
- Replies: 121
- Views: 22236
Re: MIDTERM PRACTICE - Garlic Bread Review Session [ENDORSED]
Thank you so much for the review session! It really helped clarify so many topics for me.
- Sun Oct 28, 2018 10:37 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: Uncertainty Equation
- Replies: 2
- Views: 302
Uncertainty Equation
What is the relationship between the uncertainty of momentum and the uncertainty of wavelength?
- Sun Oct 28, 2018 10:35 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: Degeneracy
- Replies: 7
- Views: 522
Re: Degeneracy
Would a 3p orbital have the same energy level as a 4p orbital? Would these two be considered degenerate?
- Sun Oct 28, 2018 10:33 pm
- Forum: Trends in The Periodic Table
- Topic: Atomic Radius
- Replies: 7
- Views: 722
Re: Atomic Radius
Removing an electron gives the atom a greater positive charge, converting it into a cation. This causes the remaining electrons to have a greater attraction to the nucleus.
- Sat Oct 20, 2018 1:00 am
- Forum: *Shrodinger Equation
- Topic: Schrodinger Equation
- Replies: 2
- Views: 458
Re: Schrodinger Equation
Just thinking conceptually, how does a wave function describe the characteristics of an electron?
- Sat Oct 20, 2018 12:57 am
- Forum: Photoelectric Effect
- Topic: Work Function
- Replies: 16
- Views: 852
Re: Work Function
I believe it is possible to find the work function if given only the frequency of the photon, using the equation:
E=hv, which will then equal the work function to eject the electron.
E=hv, which will then equal the work function to eject the electron.
- Sat Oct 20, 2018 12:45 am
- Forum: Properties of Light
- Topic: Rydberg formula
- Replies: 8
- Views: 824
Re: Rydberg formula
Rydberg formula can be used for other elements I believe, giving us a spectral line for any element. My question is, are those spectral lines of other elements than hydrogen visible to the human eye?
- Sun Oct 14, 2018 8:40 pm
- Forum: Properties of Electrons
- Topic: Energy Level Question
- Replies: 4
- Views: 382
Re: Energy Level Question
Thank you, Catherine for the clarification. This really helped me picture the change of an electron's wavelength in my head and give me a greater understanding.
- Sun Oct 14, 2018 8:36 pm
- Forum: Properties of Electrons
- Topic: energy transitions
- Replies: 6
- Views: 436
Re: energy transitions
Could the orbital angular momentum quantum number be simply described as the number of electrons on an atom's orbital shell? If not, could someone describe it in greater detail?
- Sun Oct 14, 2018 8:31 pm
- Forum: Properties of Electrons
- Topic: Electron Question
- Replies: 6
- Views: 603
Re: Electron Question
I'm sorry, but could you clarify the difference between having something quantized rather than continuous.
- Thu Oct 04, 2018 8:15 pm
- Forum: Limiting Reactant Calculations
- Topic: Combustion Analysis? [ENDORSED]
- Replies: 7
- Views: 451
Re: Combustion Analysis? [ENDORSED]
Will we only need to know the concept of it for this test? Or should we do practice problems to understand how to do it?
- Thu Oct 04, 2018 8:10 pm
- Forum: Limiting Reactant Calculations
- Topic: Fundamental M.9 [ENDORSED]
- Replies: 3
- Views: 382
Re: Fundamental M.9 [ENDORSED]
Thank you Ania for the explanation. It really helped a lot. So would you say that if they ask you for any net equation and there is a reactant and product that does not change, they would just cancel each other out?
- Thu Oct 04, 2018 8:06 pm
- Forum: Limiting Reactant Calculations
- Topic: Mole-to-mole predictions [ENDORSED]
- Replies: 2
- Views: 1043
Mole-to-mole predictions [ENDORSED]
In the textbook, it says that to predict how much product can be formed in a reaction, you can use the mole ratio for the reaction to relate the amount of a reactant consumed to the amount of molecules produced. Could someone clarify this for me?