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

Last post Re: Empirical Formula vs. Mol…
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: 2849

2849 Topics

11997 Posts

Last post Re: Ionization Energy
by Rikhil_Seth_1L View the latest post
Tue Nov 26, 2024 10:14 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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Topics: 3806

3806 Topics

13503 Posts

Last post Re: Identifying a hydroxyl gr…
by Kenah Angeles 2L View the latest post
Sat Nov 30, 2024 8:47 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: 1194

1194 Topics

4324 Posts

Last post Re: Polarity of Organic Compo…
by 906370887 View the latest post
Mon Dec 02, 2024 9:00 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: 5162

5162 Topics

20472 Posts

Last post Re: Regions of electronegativ…
by 506366689 View the latest post
Tue Dec 03, 2024 9:39 am
Hybridization
$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$
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Topics: 2757

2757 Topics

9638 Posts

Last post Re: Energy level
by VerenaL View the latest post
Tue Dec 03, 2024 12:16 am
*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: 2435

2435 Topics

8643 Posts

Last post Naming Ligands
by Summer Wang 2F View the latest post
Tue Dec 03, 2024 10:05 am
Shape, Structure, Coordination Number, Ligands
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Topics: 3155

3155 Topics

10175 Posts

Last post denticity based on shape
by Jun 2F View the latest post
Tue Dec 03, 2024 2:19 am
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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Topics: 848

848 Topics

3152 Posts

Last post Re: Temperature
by 106500270 View the latest post
Tue Dec 03, 2024 9:34 am
Properties & Structures of Inorganic & Organic Bases
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Topics: 179

179 Topics

644 Posts

Last post Re: Water
by 106500270 View the latest post
Tue Dec 03, 2024 9:33 am
Amphoteric Compounds
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Topics: 465

465 Topics

1723 Posts

Last post Re: Common Properties
by giuliapetruzzi_2A View the latest post
Tue Dec 03, 2024 9:27 am
Lewis Acids & Bases
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Topics: 1323

1323 Topics

4949 Posts

Last post Re: Lewis Acids and Conjugate…
by Trent Wan 2C View the latest post
Tue Dec 03, 2024 9:59 am
Bronsted Acids & Bases
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Topics: 1315

1315 Topics

4245 Posts

Last post Re: Oxoacids vs Regular Acids
by Alessandra Vallejo 2B View the latest post
Tue Dec 03, 2024 10:05 am
Conjugate Acids & Bases
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Topics: 659

659 Topics

2376 Posts

Last post Re: electronegativity
by Dylan Scherer 2L View the latest post
Tue Dec 03, 2024 1:03 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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Topics: 897

897 Topics

3017 Posts

Last post Ka
by Vanessa Martinez 1A View the latest post
Tue Dec 03, 2024 9:57 am
Calculating pH or pOH for Strong & Weak Acids & Bases
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Topics: 1796

1796 Topics

5921 Posts

Last post pKa of HCl vs HBr
by Giacomo Berti 1A View the latest post
Tue Dec 03, 2024 9:49 am
Polyprotic Acids & Bases
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Topics: 313

313 Topics

1068 Posts

Last post Re: Examples of polyprotic ac…
by giuliapetruzzi_2A View the latest post
Tue Dec 03, 2024 9:32 am
Identifying Acidic & Basic Salts
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Topics: 622

622 Topics

2044 Posts

Last post Re: Acidic and Basic Salts
by Audrey M Dis 2L View the latest post
Tue Dec 03, 2024 10:01 am
Calculating the pH of Salt Solutions
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Topics: 420

420 Topics

1543 Posts

Last post Re: Na+
by Jiling Chen 1F View the latest post
Mon Dec 02, 2024 11:00 pm
Air Pollution & Acid Rain
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Topics: 98

98 Topics

442 Posts

Last post Re: Acid Rain and Lawn Fertil…
by Sunny Barry 2J View the latest post
Tue Dec 03, 2024 12:42 am

Forum

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

934 Posts

Last post Rowdy Week 10 Workshop
by Chem_Mod View the latest post
Tue Dec 03, 2024 10:01 am
Student Social/Study Group
This forum topic is for students to self-organize study groups, etc.
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Topics: 708

708 Topics

17655 Posts

Last post Re: 14B Discussion Swap (1K)
by Margo_Azzam_2H View the latest post
Thu Nov 21, 2024 9:21 pm
Administrative Questions and Class Announcements
Any general non-science questions (software questions/problems, etc.,) and class announcements.
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Topics: 1915

1915 Topics

10543 Posts

Last post Switch Chem 20L for 14L
by Lachlan Guo 1G View the latest post
Tue Dec 03, 2024 8:07 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: 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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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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