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

13656 Posts

Last post Re: Electromagnetic Spectrum
by 306520253 View the latest post
Sat Dec 07, 2024 1:56 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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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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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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867 Topics

3459 Posts

Last post Re: pi bonds and resonance
by ZacharyKrauss1A View the latest post
Mon Dec 09, 2024 4:37 pm
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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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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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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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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755 Topics

3692 Posts

Last post Re: solubility of compounds b…
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Sun Dec 08, 2024 12:38 pm
Dipole Moments
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1716 Topics

6117 Posts

Last post Re: Intermolecular Force Stre…
by mohammada1f View the latest post
Mon Dec 09, 2024 11:55 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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1203 Topics

4344 Posts

Last post Re: Dipole-Dipole vs Dipole-I…
by Tamer Siam 2F View the latest post
Sun Dec 08, 2024 8:17 pm
*Liquid Structure (Viscosity, Surface Tension, Liquid Crystals, Ionic Liquids)
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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

20614 Posts

Last post How to determine resonance of…
by 006477213 View the latest post
Mon Dec 09, 2024 5:22 pm
Hybridization
$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$
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Topics: 2795

2795 Topics

9719 Posts

Last post Re: Hybridization
by Tamer Siam 2F View the latest post
Sun Dec 08, 2024 7:51 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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2523 Topics

8840 Posts

Last post Re: Anionic compounds
by Chem_Mod View the latest post
Mon Dec 09, 2024 5:44 pm
Shape, Structure, Coordination Number, Ligands
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3251 Topics

10387 Posts

Last post Re: Monodentate vs Polydentate
by Hooman View the latest post
Mon Dec 09, 2024 3:30 pm
Biological Examples
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490 Topics

1764 Posts

Last post Re: Blood PH
by Chem_Mod View the latest post
Mon Dec 09, 2024 2:14 pm
Industrial Examples
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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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924 Topics

3323 Posts

Last post Acids Charged vs Neutral
by Kailyn_Kaiser_2G View the latest post
Mon Dec 09, 2024 4:56 pm
Properties & Structures of Inorganic & Organic Bases
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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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Topics: 529

529 Topics

1864 Posts

Last post Re: H2So4- as amphoteric?
by David Gomez-Novy 1I View the latest post
Mon Dec 09, 2024 12:16 pm
Lewis Acids & Bases
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1423 Topics

5179 Posts

Last post Re: Absence of H
by AnthonyEdwardsLec1 View the latest post
Mon Dec 09, 2024 3:37 pm
Bronsted Acids & Bases
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1442 Topics

4535 Posts

Last post Oxoacids
by Shayari View the latest post
Mon Dec 09, 2024 5:53 pm
Conjugate Acids & Bases
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753 Topics

2586 Posts

Last post Re: Water
by 006172467 View the latest post
Mon Dec 09, 2024 3:47 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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975 Topics

3191 Posts

Last post Re: KW
by Chem_Mod View the latest post
Mon Dec 09, 2024 11:07 am
Calculating pH or pOH for Strong & Weak Acids & Bases
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1894 Topics

6135 Posts

Last post Re: weak acids and bases
by 006477213 View the latest post
Mon Dec 09, 2024 5:25 pm
Polyprotic Acids & Bases
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385 Topics

1223 Posts

Last post Re: Reactions of polyprotic a…
by Jayden Lee 2F View the latest post
Sun Dec 08, 2024 1:48 am
Identifying Acidic & Basic Salts
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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: 479

479 Topics

1672 Posts

Last post Re: amount of H's compared to…
by EliahBaez2I View the latest post
Mon Dec 09, 2024 4:32 pm
Air Pollution & Acid Rain
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Topics: 110

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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1931 Topics

10579 Posts

Last post Re: Sadhana's Step Up Week 10?
by Chem_Mod View the latest post
Mon Dec 09, 2024 1:47 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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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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