CHEMISTRY COMMUNITY

Review of Chemical & Physical Principles

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SI Units, Unit Conversions
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961 Topics

5478 Posts

Last post Re: Conversions
by 606275877 View the latest post
Fri Nov 22, 2024 12:11 pm
Significant Figures
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820 Topics

4621 Posts

Last post Re: Constants
by 806156213 View the latest post
Tue Nov 26, 2024 10:32 pm
Accuracy, Precision, Mole, Other Definitions
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Topics: 731

731 Topics

3755 Posts

Last post Re: Periodic Table Atomic Wei…
by Varsha 1G View the latest post
Mon Oct 28, 2024 11:27 am
Molarity, Solutions, Dilutions
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1192 Topics

4512 Posts

Last post Re: Tips for solving dilution…
by Reva Diwan 2J View the latest post
Fri Dec 06, 2024 9:13 pm
Empirical & Molecular Formulas
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1341 Topics

5370 Posts

Last post Re: Determining molecular for…
by libby li 1J View the latest post
Fri Dec 06, 2024 4:49 pm
Balancing Chemical Reactions
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807 Topics

4427 Posts

Last post Re: Balancing Equations with …
by 606275877 View the latest post
Fri Nov 08, 2024 1:06 pm
Limiting Reactant Calculations
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1289 Topics

5217 Posts

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by Armaan1A View the latest post
Tue Nov 26, 2024 10:46 pm

The Quantum World

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Properties of Light
$c=\lambda v$
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3269 Topics

13654 Posts

Last post Re: Wavelength
by 606275877 View the latest post
Fri Dec 06, 2024 12:16 pm
Properties of Electrons
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1578 Topics

5887 Posts

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by 806156213 View the latest post
Tue Nov 19, 2024 11:02 pm
Einstein Equation
$E=hv$
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Topics: 629

629 Topics

2812 Posts

Last post Re: 1B. 15c
by ChelseaMoraDis2G View the latest post
Sun Oct 27, 2024 6:56 pm
*Black Body Radiation
(Wien's law: $T\lambda _{max}=\frac{1}{5}C_{2}$ )
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174 Topics

763 Posts

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by Chem_Mod View the latest post
Tue Oct 15, 2024 12:53 pm
Photoelectric Effect
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Topics: 1993

1993 Topics

7414 Posts

Last post Re: photoelectric effect
by Trentin Hoang 2A View the latest post
Fri Dec 06, 2024 10:11 pm
Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
H-Atom ( $E_{n}=-\frac{hR}{n^{2}}$ )
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Topics: 1841

1841 Topics

5887 Posts

Last post Re: Rydberg formula
by 506198813 View the latest post
Sat Dec 07, 2024 12:07 am
DeBroglie Equation
$\lambda=\frac{h}{p}$
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1391 Topics

5423 Posts

Last post Re: Schrodinger Wave Function…
by Parker Powers 2A View the latest post
Fri Dec 06, 2024 2:01 pm
Heisenberg Indeterminacy (Uncertainty) Equation
$\Delta p \Delta x\geq \frac{h}{4\pi }$
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Topics: 1343

1343 Topics

4478 Posts

Last post Re: Why uncertainty exists at…
by 506269669 View the latest post
Fri Dec 06, 2024 8:45 pm
*Shrodinger Equation
$H_{\psi }=E_{\psi }$

1-D: $E_{TOTAL}\psi (x)=E_{k}\psi (x)+V(x)\psi(x)=-\frac{h^{2}}{8\pi ^{2}m}\frac{d^{2}\psi(x)}{dx^{2}}+V(x)\psi(x)$
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Topics: 598

598 Topics

1928 Posts

Last post Re: Wave function and probabi…
by Chem_Mod View the latest post
Mon Oct 28, 2024 4:26 pm
*Particle in a Box
$E_{n}=\frac{h^{2}n^{2}}{8mL^{2}}$
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78 Topics

299 Posts

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by Chem_Mod View the latest post
Sat Oct 12, 2024 3:35 pm
Wave Functions and s-, p-, d-, f- Orbitals
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Topics: 2079

2079 Topics

7507 Posts

Last post Re: Cr+ in lecture today
by Clara Truong 2I View the latest post
Fri Dec 06, 2024 1:26 pm
Quantum Numbers and The H-Atom
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Topics: 1230

1230 Topics

4357 Posts

Last post Re: Spectral emission lines a…
by 906218461 2J View the latest post
Fri Dec 06, 2024 8:51 pm
Electron Configurations for Multi-Electron Atoms
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2442 Topics

7910 Posts

Last post Re: Electron Configuration
by Clara Truong 2I View the latest post
Fri Dec 06, 2024 2:17 pm
Trends in The Periodic Table
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1741 Topics

6753 Posts

Last post Re: Electronegativity and Ion…
by 506198813 View the latest post
Sat Dec 07, 2024 12:12 am

Chemical Bonds

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Ionic & Covalent Bonds
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2853 Topics

12010 Posts

Last post Re: How to Know Which Bond is…
by Elle Beehler 2F View the latest post
Fri Dec 06, 2024 11:08 pm
Sigma & Pi Bonds
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Topics: 866

866 Topics

3457 Posts

Last post Re: Sigma and Pi Bonds
by 306112410 View the latest post
Fri Dec 06, 2024 7:13 pm
Lewis Structures
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3811 Topics

13516 Posts

Last post Re: line structure from lectu…
by Olivia Suhy 2K View the latest post
Fri Dec 06, 2024 11:19 pm
Resonance Structures
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Topics: 1420

1420 Topics

5250 Posts

Last post Re: resonance structures
by Riya_Patel_1L View the latest post
Wed Nov 27, 2024 9:41 am
Formal Charge and Oxidation Numbers
$FC=V-(L+\frac{S}{2})$
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1079 Topics

4506 Posts

Last post Re: Oxidation Number for Tran…
by Sophia_Lavallee_1A View the latest post
Tue Nov 26, 2024 1:55 pm
Octet Exceptions
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1207 Topics

4339 Posts

Last post Re: Carbon incomplete octet (…
by Sloane Richie 2J View the latest post
Fri Dec 06, 2024 9:22 am
Coordinate Covalent Bonds
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Topics: 329

329 Topics

1263 Posts

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by 806468747 View the latest post
Fri Dec 06, 2024 11:53 pm
Polarisability of Anions, The Polarizing Power of Cations
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Topics: 668

668 Topics

2350 Posts

Last post Re: ranking
by Lauren Mozier 1J View the latest post
Fri Dec 06, 2024 8:49 pm
Electronegativity
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Topics: 754

754 Topics

3689 Posts

Last post Re: Electronegativity: Inter …
by JaciNakamura_1C View the latest post
Wed Dec 04, 2024 12:40 am
Dipole Moments
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1714 Topics

6113 Posts

Last post Re: dipole moments
by Haley Kaneshiro 1F View the latest post
Mon Dec 02, 2024 4:46 pm
Bond Lengths & Energies
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1136 Topics

4727 Posts

Last post Re: Link Between Bond Order a…
by 506198813 View the latest post
Sat Dec 07, 2024 12:00 am

Forces and Liquid Structure

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Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
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Topics: 1200

1200 Topics

4336 Posts

Last post Re: CHF3 vs CHI3
by 506198813 View the latest post
Sat Dec 07, 2024 12:04 am
*Liquid Structure (Viscosity, Surface Tension, Liquid Crystals, Ionic Liquids)
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Topics: 33

33 Topics

215 Posts

Last post Re: Question 4
by Chem_Mod View the latest post
Tue Oct 15, 2024 12:40 am

Molecular Shape and Structure

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Determining Molecular Shape (VSEPR)
(Polar molecules, Non-polar molecules, etc.)
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Topics: 5218

5218 Topics

20603 Posts

Last post Week 7-8 #18
by HoneyWalnutShrimp View the latest post
Sat Dec 07, 2024 12:17 am
Hybridization
$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$
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Topics: 2790

2790 Topics

9709 Posts

Last post Re: Hybridization
by LeAnn_Lee_1K View the latest post
Fri Dec 06, 2024 7:51 pm
*Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
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805 Topics

2544 Posts

Last post Re: Molecular Orbital Theory …
by Chem_Mod View the latest post
Sat Oct 12, 2024 4:04 pm

Coordination Compounds and their Biological Importance

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Naming
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2516 Topics

8823 Posts

Last post Re: How do you distinguish ne…
by Annabelle Shilley 1L View the latest post
Fri Dec 06, 2024 11:59 pm
Shape, Structure, Coordination Number, Ligands
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3242 Topics

10366 Posts

Last post Re: Displacement of H2O
by Wendy Phung View the latest post
Fri Dec 06, 2024 11:49 pm
Biological Examples
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Topics: 487

487 Topics

1756 Posts

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by Chem_Mod View the latest post
Fri Dec 06, 2024 11:32 am
Industrial Examples
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Topics: 21

21 Topics

122 Posts

Last post Re: More examples
by Huanyan Zheng 1B View the latest post
Fri Dec 06, 2024 3:45 pm
*Stereochemistry
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Topics: 23

23 Topics

69 Posts

Last post Re: Stereochemistry is not in…
by Chem_Mod View the latest post
Sat Oct 12, 2024 4:09 pm
*Crystal Field Theory
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Topics: 13

13 Topics

42 Posts

Last post Re: Crystal Field Theory is n…
by Chem_Mod View the latest post
Sat Oct 12, 2024 4:23 pm
*Molecular Orbital Theory Applied To Transition Metals
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46 Topics

144 Posts

Last post Re: *Molecular Orbital Theory…
by Chem_Mod View the latest post
Sat Oct 12, 2024 4:34 pm

Acids and Bases

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Properties & Structures of Inorganic & Organic Acids
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914 Topics

3304 Posts

Last post Re: Does having a larger carb…
by 106467553 View the latest post
Fri Dec 06, 2024 11:30 pm
Properties & Structures of Inorganic & Organic Bases
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Topics: 205

205 Topics

704 Posts

Last post Re: Strong and weak Base
by LeAnn_Lee_1K View the latest post
Fri Dec 06, 2024 10:44 pm
Amphoteric Compounds
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Topics: 528

528 Topics

1860 Posts

Last post Amphoteric Reactions
by Hovhannes Narinyan 2L View the latest post
Fri Dec 06, 2024 11:55 pm
Lewis Acids & Bases
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1416 Topics

5162 Posts

Last post On whether we consider HNO2 t…
by Shelby Y 1K View the latest post
Sat Dec 07, 2024 12:10 am
Bronsted Acids & Bases
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1429 Topics

4509 Posts

Last post Re: Limitations to Bronsted
by Gloria Qu 1K View the latest post
Fri Dec 06, 2024 11:52 pm
Conjugate Acids & Bases
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747 Topics

2572 Posts

Last post Neutrality
by Sophia Ly 2K View the latest post
Fri Dec 06, 2024 11:58 pm
Acidity & Basicity Constants and The Conjugate Seesaw
Acidity $K_{a}$
Basicity $K_{b}$
The Conjugate Seesaw $K_{a}\times K_{b}=K_{w}$
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Topics: 967

967 Topics

3175 Posts

Last post Re: pKw
by 306365025 View the latest post
Fri Dec 06, 2024 10:50 pm
Calculating pH or pOH for Strong & Weak Acids & Bases
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Topics: 1879

1879 Topics

6104 Posts

Last post Re: Protonated Acid
by 106467553 View the latest post
Fri Dec 06, 2024 11:33 pm
Polyprotic Acids & Bases
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Topics: 383

383 Topics

1218 Posts

Last post Re: Polyprotic Acids & Bases
by libby li 1J View the latest post
Fri Dec 06, 2024 10:05 pm
Identifying Acidic & Basic Salts
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Topics: 707

707 Topics

2232 Posts

Last post Re: Determining pH of the sol…
by 506198813 View the latest post
Sat Dec 07, 2024 12:16 am
Calculating the pH of Salt Solutions
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Topics: 473

473 Topics

1660 Posts

Last post Re: pH of Salt Solutions
by Trentin Hoang 2A View the latest post
Fri Dec 06, 2024 10:00 pm
Air Pollution & Acid Rain
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Topics: 110

110 Topics

466 Posts

Last post Re: Basic Rain
by 806144197 View the latest post
Fri Dec 06, 2024 1:47 pm

Forum

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Chem 14A Uploaded Files (Worksheets, etc.)
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354 Topics

965 Posts

Last post Re: Nikta's Week 10 workshop …
by Chem_Mod View the latest post
Fri Dec 06, 2024 8:55 pm
Student Social/Study Group
This forum topic is for students to self-organize study groups, etc.
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710 Topics

17660 Posts

Last post Re: 14B discussion swap
by AnaiGutierrez_2B View the latest post
Fri Dec 06, 2024 8:13 pm
Administrative Questions and Class Announcements
Any general non-science questions (software questions/problems, etc.,) and class announcements.
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Topics: 1929

1929 Topics

10571 Posts

Last post Re: Hill Workshops
by Denise Leia Miranda 1C View the latest post
Fri Dec 06, 2024 11:17 pm
General Science Questions
Science questions not covered in Chem 14A and 14B. Try to limit questions to chemistry (inorganic chemistry, physical chemistry, organic chemistry, biophysical chemistry, biochemistry, materials science, environmental chemistry).
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Topics: 550

550 Topics

3194 Posts

Last post Re: Final
by Chem_Mod View the latest post
Thu Dec 05, 2024 7:21 am

*Aqueous Equilibria

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*Making Buffers & Calculating Buffer pH (Henderson-Hasselbalch Equation)
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Topics: 177

177 Topics

461 Posts

Last post Re: can only water be used as…
by carlee_romero_3A View the latest post
Sun Mar 05, 2023 8:27 pm
*Biological Importance of Buffer Solutions
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Topics: 12

12 Topics

29 Posts

Last post Re: Buffer Solutions Maintain…
by Chem_Mod View the latest post
Wed Dec 13, 2023 10:59 pm
*Titrations & Titration Calculations
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Topics: 258

258 Topics

681 Posts

Last post Re: Titration Curves w/ Acids…
by Chem_Mod View the latest post
Tue Dec 12, 2023 3:54 pm
*Indicators
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Topics: 23

23 Topics

65 Posts

Last post Re: pKA and Desired pH w/ Buf…
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Wed Dec 13, 2023 10:42 pm

Chem 14A

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