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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Topics: 820

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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1191 Topics

4510 Posts

Last post Re: Easiest way to remember c…
by Anjali Mehra 1A View the latest post
Tue Nov 05, 2024 11:39 am
Empirical & Molecular Formulas
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1340 Topics

5368 Posts

Last post Re: finding molecular formula…
by AnnaKessler2H View the latest post
Thu Dec 05, 2024 4:12 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

Last post Re: Limiting Reactant
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

Last post Re: Electron Spin
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

Last post Re: Radiation
by Chem_Mod View the latest post
Tue Oct 15, 2024 12:53 pm
Photoelectric Effect
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Topics: 1991

1991 Topics

7409 Posts

Last post Re: Questions for finding min…
by Joel Philip 1H View the latest post
Fri Dec 06, 2024 1:17 am
Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
H-Atom ( $E_{n}=-\frac{hR}{n^{2}}$ )
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Topics: 1840

1840 Topics

5885 Posts

Last post Re: Rydberg Constants
by AllyFoo_2K View the latest post
Thu Dec 05, 2024 10:56 pm
DeBroglie Equation
$\lambda=\frac{h}{p}$
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1390 Topics

5421 Posts

Last post Re: Final
by 706257024 View the latest post
Thu Dec 05, 2024 7:54 pm
Heisenberg Indeterminacy (Uncertainty) Equation
$\Delta p \Delta x\geq \frac{h}{4\pi }$
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1342 Topics

4476 Posts

Last post Re: Minimum Uncertainty
by Praise Yu 1C View the latest post
Tue Dec 03, 2024 10:10 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

Last post Re: Particle in a Box is not …
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: 2078

2078 Topics

7505 Posts

Last post Re: Week 2,3,4 Homework Quest…
by Katelyn Wu 1I View the latest post
Thu Dec 05, 2024 3:19 am
Quantum Numbers and The H-Atom
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Topics: 1229

1229 Topics

4355 Posts

Last post Re: ml quantum number
by Danis Rivera 2C View the latest post
Tue Nov 19, 2024 10:43 am
Electron Configurations for Multi-Electron Atoms
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2441 Topics

7908 Posts

Last post Re: Neutral atoms orbitals vs…
by Danis Rivera 2C View the latest post
Tue Nov 19, 2024 10:39 am
Trends in The Periodic Table
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1740 Topics

6751 Posts

Last post Re: Second ionization energy
by Hunter Rosales 2C View the latest post
Wed Dec 04, 2024 10:47 pm

Chemical Bonds

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Ionic & Covalent Bonds
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2852 Topics

12008 Posts

Last post Re: Ionization Energy
by 606275877 View the latest post
Fri Dec 06, 2024 12:10 pm
Sigma & Pi Bonds
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Topics: 864

864 Topics

3452 Posts

Last post Re: Double bonds, triple bond…
by Joel Philip 1H View the latest post
Fri Dec 06, 2024 1:19 am
Lewis Structures
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3809 Topics

13511 Posts

Last post Re: Bond angles
by 606275877 View the latest post
Fri Dec 06, 2024 12:06 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: 328

328 Topics

1261 Posts

Last post Re: Ligand Binding Sites
by Gargi Patel 1F View the latest post
Tue Dec 03, 2024 8:58 pm
Polarisability of Anions, The Polarizing Power of Cations
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Topics: 667

667 Topics

2348 Posts

Last post Re: Polarization in bonds wit…
by Giada Leggero 1F View the latest post
Mon Nov 25, 2024 5:54 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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1135 Topics

4725 Posts

Last post Re: Bond lengths and Vapor
by Nitya Jhamb View the latest post
Thu Dec 05, 2024 11:45 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: 1197

1197 Topics

4330 Posts

Last post Re: Forces In Relation To Ion…
by Rikhil_Seth_1L View the latest post
Wed Dec 04, 2024 10:57 pm
*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: 5209

5209 Topics

20579 Posts

Last post Molecular Shape
by 606275877 View the latest post
Fri Dec 06, 2024 12:04 pm
Hybridization
$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$
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Topics: 2787

2787 Topics

9701 Posts

Last post Re: When do we know to use hy…
by 906194926 View the latest post
Fri Dec 06, 2024 11:37 am
*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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2501 Topics

8792 Posts

Last post Re: Unconventional Compounds …
by Alexander Chao 1G View the latest post
Fri Dec 06, 2024 2:57 am
Shape, Structure, Coordination Number, Ligands
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3228 Topics

10333 Posts

Last post 8 d electrons causing square …
by Claire Li 2J View the latest post
Fri Dec 06, 2024 9:22 am
Biological Examples
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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

121 Posts

Last post Re: More examples
by Sophie Zhou 2H View the latest post
Sat Nov 30, 2024 4:47 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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Topics: 46

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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906 Topics

3283 Posts

Last post Re: Electron pulling vs. Elec…
by joliet1k View the latest post
Fri Dec 06, 2024 11:45 am
Properties & Structures of Inorganic & Organic Bases
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Topics: 203

203 Topics

699 Posts

Last post Re: Be and Mg as Weak Bases
by 106522470 View the latest post
Thu Dec 05, 2024 11:32 pm
Amphoteric Compounds
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Topics: 513

513 Topics

1830 Posts

Last post Re: Amphoteric compounds
by Huanyan Zheng 1B View the latest post
Fri Dec 06, 2024 10:11 am
Lewis Acids & Bases
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1394 Topics

5114 Posts

Last post Re: Lewis v Arrhenius
by 906194926 View the latest post
Fri Dec 06, 2024 11:48 am
Bronsted Acids & Bases
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1407 Topics

4456 Posts

Last post 6D.11 (e, f)
by joliet1k View the latest post
Fri Dec 06, 2024 11:55 am
Conjugate Acids & Bases
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730 Topics

2532 Posts

Last post Re: Electron withdrawing power
by RoyJ_2J View the latest post
Fri Dec 06, 2024 9:35 am
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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957 Topics

3153 Posts

Last post Re: pKw
by Srinidhi Sampath 1G View the latest post
Fri Dec 06, 2024 11:39 am
Calculating pH or pOH for Strong & Weak Acids & Bases
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Topics: 1873

1873 Topics

6090 Posts

Last post Difference between pH and pOH
by 406375104 View the latest post
Fri Dec 06, 2024 11:50 am
Polyprotic Acids & Bases
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Topics: 375

375 Topics

1197 Posts

Last post Difference between Polyprotic…
by 906194926 View the latest post
Fri Dec 06, 2024 11:50 am
Identifying Acidic & Basic Salts
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Topics: 695

695 Topics

2203 Posts

Last post Weak v.s Strong Acids
by 406375104 View the latest post
Fri Dec 06, 2024 11:52 am
Calculating the pH of Salt Solutions
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Topics: 470

470 Topics

1649 Posts

Last post The effect of Strong Acid and…
by 906194926 View the latest post
Fri Dec 06, 2024 12:04 pm
Air Pollution & Acid Rain
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Topics: 108

108 Topics

461 Posts

Last post Final Exam
by 606275877 View the latest post
Fri Dec 06, 2024 12:12 pm

Forum

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

960 Posts

Last post Re: Rowdy Week 10 Step-up
by Chem_Mod View the latest post
Fri Dec 06, 2024 11:04 am
Student Social/Study Group
This forum topic is for students to self-organize study groups, etc.
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709 Topics

17656 Posts

Last post 14B discussion swap
by AnaiGutierrez_2B View the latest post
Tue Dec 03, 2024 4:03 pm
Administrative Questions and Class Announcements
Any general non-science questions (software questions/problems, etc.,) and class announcements.
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Topics: 1923

1923 Topics

10559 Posts

Last post Acid and Base names
by 606176900 View the latest post
Fri Dec 06, 2024 10:17 am
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…
by Chem_Mod View the latest post
Wed Dec 13, 2023 10:42 pm

Chem 14A

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