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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3268 Topics

13651 Posts

Last post Re: Radio Waves
by 806156213 View the latest post
Tue Nov 05, 2024 9:59 pm
Properties of Electrons
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Topics: 1578

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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Topics: 174

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: 1990

1990 Topics

7407 Posts

Last post Re: Light as Waves and Partic…
by 606176900 View the latest post
Wed Dec 04, 2024 11:26 pm
Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
H-Atom ( $E_{n}=-\frac{hR}{n^{2}}$ )
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Topics: 1840

1840 Topics

5884 Posts

Last post Rydberg Constants
by SophieOhanyan2I View the latest post
Thu Dec 05, 2024 9:41 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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Topics: 78

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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Topics: 2852

2852 Topics

12007 Posts

Last post Re: How to tell without Elect…
by Caroline Schick 1I View the latest post
Thu Dec 05, 2024 4:41 pm
Sigma & Pi Bonds
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Topics: 863

863 Topics

3450 Posts

Last post Re: Triple Bond - Pi Bonds
by StacyFloresG_1B View the latest post
Tue Dec 03, 2024 8:00 pm
Lewis Structures
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Topics: 3808

3808 Topics

13508 Posts

Last post Re: SO3 lewis structure
by 406501249 View the latest post
Thu Dec 05, 2024 10:46 am
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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Topics: 1079

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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Topics: 1206

1206 Topics

4337 Posts

Last post Re: HOCO Radical
by Donovan Le 1B View the latest post
Sun Nov 24, 2024 10:59 pm
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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Topics: 1714

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: 5198

5198 Topics

20551 Posts

Last post Dipole Moments Cancelling
by Sabrina Redifer_2I View the latest post
Thu Dec 05, 2024 9:31 pm
Hybridization
$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$
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Topics: 2779

2779 Topics

9686 Posts

Last post Re: hybridization of central …
by 606422840 View the latest post
Thu Dec 05, 2024 9:05 pm
*Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
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Topics: 805

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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Topics: 2497

2497 Topics

8784 Posts

Last post Re: Study tips for memorizing?
by Henry Ortiz 2H View the latest post
Thu Dec 05, 2024 7:40 pm
Shape, Structure, Coordination Number, Ligands
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Topics: 3219

3219 Topics

10317 Posts

Last post Re: Negative or Lone Pairs
by Abby OBrien-2G View the latest post
Thu Dec 05, 2024 8:20 pm
Biological Examples
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Topics: 486

486 Topics

1754 Posts

Last post Re: Coordination Compounds Ne…
by Henry Ortiz 2H View the latest post
Thu Dec 05, 2024 8:17 pm
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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899 Topics

3265 Posts

Last post Re: Oxoacid strength
by Sabrina Redifer_2I View the latest post
Thu Dec 05, 2024 9:38 pm
Properties & Structures of Inorganic & Organic Bases
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Topics: 201

201 Topics

695 Posts

Last post Re: NH3
by Cleo Ibrahim 1E View the latest post
Thu Dec 05, 2024 9:35 pm
Amphoteric Compounds
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Topics: 511

511 Topics

1825 Posts

Last post Re: Amphoteric compounds
by Tyler Truong 2L View the latest post
Thu Dec 05, 2024 9:33 pm
Lewis Acids & Bases
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1390 Topics

5106 Posts

Last post Re: Water as an acid and base
by Henry Ortiz 2H View the latest post
Thu Dec 05, 2024 6:57 pm
Bronsted Acids & Bases
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1396 Topics

4434 Posts

Last post Re: Strong vs weak acid (Achi…
by 606422840 View the latest post
Thu Dec 05, 2024 9:40 pm
Conjugate Acids & Bases
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725 Topics

2521 Posts

Last post Reactivity
by Jocelyn Ortiz 2D View the latest post
Thu Dec 05, 2024 9:41 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: 949

949 Topics

3135 Posts

Last post Relation of pH and pKa
by Katelyn Wu 1I View the latest post
Thu Dec 05, 2024 9:39 pm
Calculating pH or pOH for Strong & Weak Acids & Bases
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Topics: 1864

1864 Topics

6070 Posts

Last post Re: pH
by 106467553 View the latest post
Thu Dec 05, 2024 8:13 pm
Polyprotic Acids & Bases
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Topics: 365

365 Topics

1180 Posts

Last post Re: CO2 in water
by 606422840 View the latest post
Thu Dec 05, 2024 9:02 pm
Identifying Acidic & Basic Salts
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Topics: 686

686 Topics

2184 Posts

Last post Re: Weak cations as acids
by Emilie Campbell View the latest post
Thu Dec 05, 2024 9:16 pm
Calculating the pH of Salt Solutions
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Topics: 466

466 Topics

1642 Posts

Last post Ions as Bases
by 106251195 View the latest post
Thu Dec 05, 2024 9:34 pm
Air Pollution & Acid Rain
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Topics: 106

106 Topics

458 Posts

Last post Re: Final
by Mia Nakamura 2H View the latest post
Thu Dec 05, 2024 8:11 pm

Forum

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Chem 14A Uploaded Files (Worksheets, etc.)
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Topics: 351

351 Topics

956 Posts

Last post Re: Sadhana's Step-Up Session…
by Chem_Mod View the latest post
Thu Dec 05, 2024 6:54 pm
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: 1922

1922 Topics

10558 Posts

Last post Re: Midterm 1
by Shine Byeon - 1C View the latest post
Thu Dec 05, 2024 7:24 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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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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