CHEMISTRY COMMUNITY

Review of Chemical & Physical Principles

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SI Units, Unit Conversions
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962 Topics

5480 Posts

Last post Re: Misgraded Exam 2
by Chem_Mod View the latest post
Sun Dec 08, 2024 6:59 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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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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1343 Topics

5374 Posts

Last post Re: M19 Question
by mohammada1f View the latest post
Sun Dec 08, 2024 8:53 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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1290 Topics

5219 Posts

Last post Re: Comparing Units
by 206363692 View the latest post
Sat Dec 07, 2024 1:09 am

The Quantum World

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Properties of Light
$c=\lambda v$
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3270 Topics

13657 Posts

Last post Re: Electromagnetic Spectrum
by Lauren Pun View the latest post
Mon Dec 09, 2024 9:50 pm
Properties of Electrons
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1579 Topics

5889 Posts

Last post Re: Final
by IMOGENE GAEDE 1E View the latest post
Mon Dec 09, 2024 9:09 pm
Einstein Equation
$E=hv$
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Topics: 630

630 Topics

2814 Posts

Last post Re: Wavelength
by Roma Patel 1J View the latest post
Sun Dec 08, 2024 4:08 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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1995 Topics

7419 Posts

Last post Re: setting KE = 0
by Fatima2I View the latest post
Mon Dec 09, 2024 4:19 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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1393 Topics

5427 Posts

Last post Re: 12/02 Lecture Question Re…
by Brenna Gleason Dis1H View the latest post
Mon Dec 09, 2024 2:27 pm
Heisenberg Indeterminacy (Uncertainty) Equation
$\Delta p \Delta x\geq \frac{h}{4\pi }$
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Topics: 1344

1344 Topics

4481 Posts

Last post Re: Deciding velocity when + …
by ZacharyKrauss1A View the latest post
Mon Dec 09, 2024 4:29 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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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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2080 Topics

7509 Posts

Last post Re: Lyman/Balmer Series and t…
by Vahag_Matevosian_2E View the latest post
Sat Dec 07, 2024 5:39 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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2443 Topics

7912 Posts

Last post Re: Electron Config
by Danis Rivera 2C View the latest post
Sat Dec 07, 2024 6:15 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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2854 Topics

12012 Posts

Last post Re: Ion-dipole vs Hydrogen Bo…
by sarahweintraut View the latest post
Sun Dec 08, 2024 6:05 pm
Sigma & Pi Bonds
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868 Topics

3462 Posts

Last post Re: pi bonds vs sigma bonds
by Richa Thakre 1E View the latest post
Tue Dec 10, 2024 3:05 am
Lewis Structures
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3813 Topics

13520 Posts

Last post Re: Textbook 2B.19 part C
by David Gomez-Novy 1I View the latest post
Mon Dec 09, 2024 1:43 pm
Resonance Structures
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Topics: 1421

1421 Topics

5252 Posts

Last post Re: resonance hybrid
by 006463452 View the latest post
Mon Dec 09, 2024 10:47 pm
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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1208 Topics

4341 Posts

Last post Re: Octet Exceptions
by 006455961 View the latest post
Sat Dec 07, 2024 5:49 pm
Coordinate Covalent Bonds
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Topics: 330

330 Topics

1265 Posts

Last post Re: coordinate covalent bond
by Chem_Mod View the latest post
Mon Dec 09, 2024 6:41 pm
Polarisability of Anions, The Polarizing Power of Cations
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Topics: 669

669 Topics

2352 Posts

Last post Re: Does ionic bonds have a h…
by Tamer Siam 2F View the latest post
Mon Dec 09, 2024 9:09 am
Electronegativity
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756 Topics

3694 Posts

Last post Re: Polar bonds
by Richa Thakre 1E View the latest post
Tue Dec 10, 2024 2:58 am
Dipole Moments
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1717 Topics

6120 Posts

Last post Re: CCl4 zero dipole moment
by Richa Thakre 1E View the latest post
Tue Dec 10, 2024 3:03 am
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: 1204

1204 Topics

4346 Posts

Last post Re: Polarity final question
by 806468747 View the latest post
Mon Dec 09, 2024 11:38 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: 5223

5223 Topics

20615 Posts

Last post Re: How to determine resonanc…
by 206363692 View the latest post
Mon Dec 09, 2024 10:06 pm
Hybridization
$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$
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2796 Topics

9721 Posts

Last post Re: Rotation of Pi-bonds
by 206363692 View the latest post
Mon Dec 09, 2024 10:14 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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2524 Topics

8842 Posts

Last post Re: Naming Coordination Compo…
by 805875983 View the latest post
Tue Dec 10, 2024 4:21 am
Shape, Structure, Coordination Number, Ligands
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3252 Topics

10389 Posts

Last post Re: H2O vs OH2 in coordinatio…
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Tue Dec 10, 2024 4:18 am
Biological Examples
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493 Topics

1770 Posts

Last post Re: Chromium Biological Funct…
by Chem_Mod View the latest post
Mon Dec 09, 2024 11:31 pm
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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13 Topics

42 Posts

Last post Re: Crystal Field Theory is n…
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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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925 Topics

3327 Posts

Last post Re: Acids Charged vs Neutral
by Richa Thakre 1E View the latest post
Tue Dec 10, 2024 3:11 am
Properties & Structures of Inorganic & Organic Bases
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Topics: 208

208 Topics

710 Posts

Last post Re: Magnesium Hydroxide
by 406433397 View the latest post
Mon Dec 09, 2024 3:10 pm
Amphoteric Compounds
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529 Topics

1865 Posts

Last post Re: Amphoteric Reactions
by 805875983 View the latest post
Tue Dec 10, 2024 4:36 am
Lewis Acids & Bases
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1423 Topics

5181 Posts

Last post Re: Lewis Acids and Bronsted …
by 805875983 View the latest post
Tue Dec 10, 2024 4:34 am
Bronsted Acids & Bases
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1444 Topics

4542 Posts

Last post Re: Bronsted
by 906471457 View the latest post
Tue Dec 10, 2024 12:20 pm
Conjugate Acids & Bases
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754 Topics

2588 Posts

Last post Re: Effect of pH
by Richa Thakre 1E View the latest post
Tue Dec 10, 2024 3:00 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: 977

977 Topics

3194 Posts

Last post Ka and Kb
by 805875983 View the latest post
Tue Dec 10, 2024 4:22 am
Calculating pH or pOH for Strong & Weak Acids & Bases
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1895 Topics

6136 Posts

Last post Equivalence point
by 805875983 View the latest post
Tue Dec 10, 2024 4:24 am
Polyprotic Acids & Bases
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Topics: 387

387 Topics

1227 Posts

Last post Re: Polyprotic Acid
by 906471457 View the latest post
Tue Dec 10, 2024 12:39 pm
Identifying Acidic & Basic Salts
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Topics: 712

712 Topics

2244 Posts

Last post Re: Cations from Groups 1 & 2
by Monica Arvizu Madrigal View the latest post
Sun Dec 08, 2024 7:45 pm
Calculating the pH of Salt Solutions
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Topics: 480

480 Topics

1674 Posts

Last post Re: Stoichiometric Point
by 206363692 View the latest post
Mon Dec 09, 2024 10:28 pm
Air Pollution & Acid Rain
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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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356 Topics

982 Posts

Last post Re: Chem14A Review Session - …
by Chem_Mod View the latest post
Mon Dec 09, 2024 5:42 pm
Student Social/Study Group
This forum topic is for students to self-organize study groups, etc.
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712 Topics

17665 Posts

Last post Re: Winter Discussion Swap
by AdamJaser1B View the latest post
Mon Dec 09, 2024 12:47 pm
Administrative Questions and Class Announcements
Any general non-science questions (software questions/problems, etc.,) and class announcements.
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1932 Topics

10580 Posts

Last post Thank you!
by 306432459 View the latest post
Mon Dec 09, 2024 9:55 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…
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Wed Dec 13, 2023 10:42 pm

Chem 14A

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