Search found 30 matches

by ThomascnguyenDis1J
Wed Dec 05, 2018 6:53 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: Final Exam
Replies: 7
Views: 164

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.
by ThomascnguyenDis1J
Wed Dec 05, 2018 6:49 pm
Forum: Naming
Topic: Water as a ligand
Replies: 5
Views: 148

Re: Water as a ligand

Would using OH2 instead of H2O be wrong on a test? Is it not interchangable?
by ThomascnguyenDis1J
Wed Dec 05, 2018 6:48 pm
Forum: Naming
Topic: OH2 vs H2O
Replies: 5
Views: 106

Re: OH2 vs H2O

I don't think so Cienna, but I would ask your TA first
by ThomascnguyenDis1J
Wed Dec 05, 2018 6:46 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Coordination Number
Replies: 7
Views: 141

Re: Coordination Number

What does the term "coordination" refer to with the concept of "coordination number"
by ThomascnguyenDis1J
Wed Dec 05, 2018 6:44 pm
Forum: Lewis Acids & Bases
Topic: Weak and Strong Acids/Bases
Replies: 7
Views: 169

Re: Weak and Strong Acids/Bases

What makes the weak acids/bases weak and the strong acids/bases strong?
by ThomascnguyenDis1J
Wed Dec 05, 2018 6:43 pm
Forum: Lewis Acids & Bases
Topic: Identifying the acid and base
Replies: 3
Views: 103

Re: Identifying the acid and base

Can this idea be applied to identifying any compound?
by ThomascnguyenDis1J
Sun Nov 25, 2018 8:16 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Polarity
Replies: 3
Views: 82

Re: Polarity

Thank you Michael, this really clarified the topic for me!!
by ThomascnguyenDis1J
Sun Nov 25, 2018 8:15 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Exceptions to VSEPR
Replies: 1
Views: 79

Exceptions to VSEPR

Are there any compounds that serve as exceptions to the formulas we've learned in class?
by ThomascnguyenDis1J
Sun Nov 25, 2018 8:14 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: 4.19 6th edition
Replies: 4
Views: 153

Re: 4.19 6th edition

When dealing with multiple compounds bonding to each other, what is the best way to determine its molecular shape?
by ThomascnguyenDis1J
Sun Nov 25, 2018 8:12 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Naming the Shape
Replies: 16
Views: 255

Re: Naming the Shape

Will we ever be told to draw out the vsepr model for a molecule?
by ThomascnguyenDis1J
Sun Nov 25, 2018 8:11 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: 2 Lone Pairs, Placement
Replies: 3
Views: 76

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.
by ThomascnguyenDis1J
Sun Nov 25, 2018 8:10 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Shapes Not covered in Lecture
Replies: 10
Views: 201

Re: Shapes Not covered in Lecture

Would we need to know the specific bond angles of each molecule?
by ThomascnguyenDis1J
Sun Nov 11, 2018 3:09 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Formal Charge and the Octet Rule
Replies: 6
Views: 208

Re: Formal Charge and the Octet Rule

The formal charge must always equal to the charge of the entire molecule.
by ThomascnguyenDis1J
Sun Nov 11, 2018 3:08 pm
Forum: Lewis Structures
Topic: Formal Charge
Replies: 14
Views: 294

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
by ThomascnguyenDis1J
Sun Nov 11, 2018 3:01 pm
Forum: Resonance Structures
Topic: Resonance Structures on the Midterm
Replies: 3
Views: 110

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?
by ThomascnguyenDis1J
Sun Nov 04, 2018 2:08 pm
Forum: Electronegativity
Topic: Electron Affinity
Replies: 3
Views: 97

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.
by ThomascnguyenDis1J
Sun Nov 04, 2018 2:05 pm
Forum: Electronegativity
Topic: Periodic Trends
Replies: 10
Views: 289

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.
by ThomascnguyenDis1J
Sun Nov 04, 2018 1:55 pm
Forum: Administrative Questions and Class Announcements
Topic: MIDTERM PRACTICE - Garlic Bread Review Session [ENDORSED]
Replies: 121
Views: 5545

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.
by ThomascnguyenDis1J
Sun Oct 28, 2018 10:37 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: Uncertainty Equation
Replies: 2
Views: 93

Uncertainty Equation

What is the relationship between the uncertainty of momentum and the uncertainty of wavelength?
by ThomascnguyenDis1J
Sun Oct 28, 2018 10:35 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Degeneracy
Replies: 7
Views: 124

Re: Degeneracy

Would a 3p orbital have the same energy level as a 4p orbital? Would these two be considered degenerate?
by ThomascnguyenDis1J
Sun Oct 28, 2018 10:33 pm
Forum: Trends in The Periodic Table
Topic: Atomic Radius
Replies: 7
Views: 164

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.
by ThomascnguyenDis1J
Sat Oct 20, 2018 1:00 am
Forum: *Shrodinger Equation
Topic: Schrodinger Equation
Replies: 2
Views: 114

Re: Schrodinger Equation

Just thinking conceptually, how does a wave function describe the characteristics of an electron?
by ThomascnguyenDis1J
Sat Oct 20, 2018 12:57 am
Forum: Photoelectric Effect
Topic: Work Function
Replies: 16
Views: 216

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.
by ThomascnguyenDis1J
Sat Oct 20, 2018 12:45 am
Forum: Properties of Light
Topic: Rydberg formula
Replies: 8
Views: 143

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?
by ThomascnguyenDis1J
Sun Oct 14, 2018 8:40 pm
Forum: Properties of Electrons
Topic: Energy Level Question
Replies: 4
Views: 79

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.
by ThomascnguyenDis1J
Sun Oct 14, 2018 8:36 pm
Forum: Properties of Electrons
Topic: energy transitions
Replies: 6
Views: 116

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?
by ThomascnguyenDis1J
Sun Oct 14, 2018 8:31 pm
Forum: Properties of Electrons
Topic: Electron Question
Replies: 6
Views: 198

Re: Electron Question

I'm sorry, but could you clarify the difference between having something quantized rather than continuous.
by ThomascnguyenDis1J
Thu Oct 04, 2018 8:15 pm
Forum: Limiting Reactant Calculations
Topic: Combustion Analysis? [ENDORSED]
Replies: 7
Views: 168

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?
by ThomascnguyenDis1J
Thu Oct 04, 2018 8:10 pm
Forum: Limiting Reactant Calculations
Topic: Fundamental M.9 [ENDORSED]
Replies: 3
Views: 112

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?
by ThomascnguyenDis1J
Thu Oct 04, 2018 8:06 pm
Forum: Limiting Reactant Calculations
Topic: Mole-to-mole predictions [ENDORSED]
Replies: 2
Views: 129

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?

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