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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1339 Topics

5366 Posts

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by Armaan1A View the latest post
Tue Nov 26, 2024 10:43 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: 1989

1989 Topics

7404 Posts

Last post Re: Photoelectric Effect and …
by Sloane Richie 2J View the latest post
Fri Nov 29, 2024 1:43 pm
Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
H-Atom ( $E_{n}=-\frac{hR}{n^{2}}$ )
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Topics: 1838

1838 Topics

5881 Posts

Last post Re: Bohr Frequency condition …
by Andre Ambarchyan 2B View the latest post
Tue Nov 19, 2024 11:30 am
DeBroglie Equation
$\lambda=\frac{h}{p}$
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1388 Topics

5416 Posts

Last post Re: DeBroglie
by Alyssa Truong 1L View the latest post
Fri Nov 01, 2024 12:40 pm
Heisenberg Indeterminacy (Uncertainty) Equation
$\Delta p \Delta x\geq \frac{h}{4\pi }$
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Topics: 1341

1341 Topics

4473 Posts

Last post Re: How to determine the unce…
by Danika Suh 2L View the latest post
Wed Nov 06, 2024 8:39 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: 2077

2077 Topics

7503 Posts

Last post Re: Sigma Bonds and particle …
by Agata Shamis View the latest post
Tue Nov 19, 2024 10:34 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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Topics: 2441

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

6750 Posts

Last post Re: Second ionization energy
by liah View the latest post
Tue Dec 03, 2024 9:26 am

Chemical Bonds

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Ionic & Covalent Bonds
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Topics: 2851

2851 Topics

12004 Posts

Last post Re: ionic and covalent bonds
by Dylanmateo View the latest post
Tue Dec 03, 2024 1:15 pm
Sigma & Pi Bonds
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Topics: 862

862 Topics

3448 Posts

Last post Re: How do we know?
by Chem_Mod View the latest post
Fri Nov 29, 2024 8:45 am
Lewis Structures
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3807 Topics

13505 Posts

Last post Re: Bond Strength in Lewis St…
by priya doshi 1I View the latest post
Tue Dec 03, 2024 5:57 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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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: 326

326 Topics

1254 Posts

Last post Re: Coordinate Covalent Bonds
by Trent Wan 2C View the latest post
Tue Dec 03, 2024 9:54 am
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: 753

753 Topics

3687 Posts

Last post Re: polar bonds vs polar mole…
by Addison Myers - Dis 2L View the latest post
Fri Nov 22, 2024 8:50 pm
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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Topics: 1134

1134 Topics

4723 Posts

Last post Re: Valence Bond Theory
by Natalie Elbahr 2F View the latest post
Wed Nov 20, 2024 9:38 pm

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: 1195

1195 Topics

4326 Posts

Last post Re: Polarity of Certain Compo…
by lillianevans2A View the latest post
Tue Dec 03, 2024 11:50 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: 5165

5165 Topics

20479 Posts

Last post Re: Achieve Book Problem 2E #7
by 106370264 View the latest post
Tue Dec 03, 2024 5:16 pm
Hybridization
$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$
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Topics: 2765

2765 Topics

9654 Posts

Last post Re: s-character
by caitlyn05 View the latest post
Tue Dec 03, 2024 6:05 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: 2451

2451 Topics

8681 Posts

Last post Charges for Ligands
by Vahag_Matevosian_2E View the latest post
Tue Dec 03, 2024 7:03 pm
Shape, Structure, Coordination Number, Ligands
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Topics: 3173

3173 Topics

10213 Posts

Last post Re: Naming/ ligand naming
by Gurnoor Chouhan 2E View the latest post
Tue Dec 03, 2024 6:56 pm
Biological Examples
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Topics: 476

476 Topics

1733 Posts

Last post Re: Chelating Ligands
by Cynthia Diaz View the latest post
Mon Dec 02, 2024 3:14 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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854 Topics

3166 Posts

Last post Re: Strong Acid "trends"
by Meera Patel 1D View the latest post
Tue Dec 03, 2024 6:32 pm
Properties & Structures of Inorganic & Organic Bases
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Topics: 184

184 Topics

658 Posts

Last post Re: Oxidation number of a spe…
by Ryan Alridge 1C View the latest post
Tue Dec 03, 2024 6:25 pm
Amphoteric Compounds
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Topics: 475

475 Topics

1744 Posts

Last post Re: Clarification of Compounds
by 106370264 View the latest post
Tue Dec 03, 2024 5:19 pm
Lewis Acids & Bases
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Topics: 1334

1334 Topics

4976 Posts

Last post Determining Lewis Acids and B…
by JC Edmalin 1C View the latest post
Tue Dec 03, 2024 7:13 pm
Bronsted Acids & Bases
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1333 Topics

4289 Posts

Last post Re: Identifying whether somet…
by Vahag_Matevosian_2E View the latest post
Tue Dec 03, 2024 7:08 pm
Conjugate Acids & Bases
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673 Topics

2405 Posts

Last post conjugate base affecting pH
by JulissaS-Dis1G View the latest post
Tue Dec 03, 2024 7:11 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: 907

907 Topics

3043 Posts

Last post Re: Acidic and Basic Oxides
by Medha Nandhimandalam 1A View the latest post
Tue Dec 03, 2024 6:44 pm
Calculating pH or pOH for Strong & Weak Acids & Bases
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Topics: 1802

1802 Topics

5935 Posts

Last post pH and Oxidation Number
by JC Edmalin 1C View the latest post
Tue Dec 03, 2024 7:11 pm
Polyprotic Acids & Bases
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Topics: 324

324 Topics

1094 Posts

Last post Re: pH
by JulissaS-Dis1G View the latest post
Tue Dec 03, 2024 5:29 pm
Identifying Acidic & Basic Salts
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Topics: 631

631 Topics

2064 Posts

Last post Re: Terminology
by Anjali Mehra 1A View the latest post
Tue Dec 03, 2024 6:25 pm
Calculating the pH of Salt Solutions
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Topics: 428

428 Topics

1560 Posts

Last post Re: Bounds for Considerable p…
by Ryan Alridge 1C View the latest post
Tue Dec 03, 2024 6:29 pm
Air Pollution & Acid Rain
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Topics: 100

100 Topics

446 Posts

Last post Re: Acid rain
by Gurnoor Chouhan 2E View the latest post
Tue Dec 03, 2024 6:59 pm

Forum

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

939 Posts

Last post MOLECULAR SHAPE/STRUCTURE FIN…
by Chem_Mod View the latest post
Tue Dec 03, 2024 6:28 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: 1916

1916 Topics

10544 Posts

Last post Sadhana's Step Up Week 10?
by 806142023 View the latest post
Tue Dec 03, 2024 3:25 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: 548

548 Topics

3190 Posts

Last post Re: Final Room
by karime montano 1k View the latest post
Thu Nov 28, 2024 9:14 pm

*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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