Search found 56 matches
- Mon Dec 09, 2019 3:33 am
- Forum: Hybridization
- Topic: Charges
- Replies: 9
- Views: 1094
Re: Charges
You can specify if the molecule is positive or negative.
Re: "Ferrate"
Yes, it is latin prefix, and you just have to memorize the exceptions I believe.
- Mon Dec 09, 2019 12:18 am
- Forum: Amphoteric Compounds
- Topic: Amphoteric vs Amphiprotic
- Replies: 13
- Views: 1535
Re: Amphoteric vs Amphiprotic
Amphiprotic includes Bronsted definition when amphoteric just means the compound can be both acid and base.
- Mon Dec 09, 2019 12:18 am
- Forum: Amphoteric Compounds
- Topic: Amphoteric vs Amphiprotic
- Replies: 13
- Views: 1535
Re: Amphoteric vs Amphiprotic
Amphiprotic includes Bronsted definition when amphoteric just means the compound can be both acid and base.
- Mon Dec 09, 2019 12:18 am
- Forum: Amphoteric Compounds
- Topic: Amphoteric vs Amphiprotic
- Replies: 13
- Views: 1535
Re: Amphoteric vs Amphiprotic
Amphiprotic includes Bronsted definition when amphoteric just means the compound can be both acid and base.
- Mon Dec 09, 2019 12:16 am
- Forum: Calculating the pH of Salt Solutions
- Topic: OH- and H+
- Replies: 6
- Views: 595
Re: OH- and H+
I also do the chemical reaction with water to see if it releases H+ or OH-
- Mon Dec 02, 2019 1:47 am
- Forum: Industrial Examples
- Topic: Coordination compounds as Chemotherapy drugs
- Replies: 9
- Views: 1841
Re: Coordination compounds as Chemotherapy drugs
I believe we have to know about cisplatin, which is a well-known coordination compound used in chemotherapy, and we also discussed it in class.
- Mon Dec 02, 2019 1:46 am
- Forum: Biological Examples
- Topic: Biological Examples
- Replies: 10
- Views: 529
Re: Biological Examples
I believe there will be handful of short answer questions in the finals, including the role of biological/industrial examples.
Re: oxidation
I believe you add oxidation number after naming the metal part in parenthesis.
- Mon Dec 02, 2019 1:42 am
- Forum: Biological Examples
- Topic: Chemotherapy
- Replies: 6
- Views: 481
Re: Chemotherapy
I think we only have to know about cisplatin, which Dr. Lavelle went over in lecture.
- Mon Dec 02, 2019 1:40 am
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Cis vs Trans
- Replies: 22
- Views: 1762
Re: Cis vs Trans
Cis is polar and Trans is non polar. If you draw the dipole moment, Cis does not cancel out while trans does even when they are resonance to each other.
- Mon Dec 02, 2019 1:38 am
- Forum: Naming
- Topic: Final Exam?
- Replies: 20
- Views: 1166
Re: Final Exam?
It is cumulative. So you need to know everything we went over in class since the beginning of the quarter.
- Sun Nov 24, 2019 10:31 pm
- Forum: Naming
- Topic: Order in Naming
- Replies: 12
- Views: 745
Re: Order in Naming
Put them in alphabetical order and then determine its charge.
- Sun Nov 24, 2019 10:30 pm
- Forum: Naming
- Topic: Trans and Cis
- Replies: 8
- Views: 506
Re: Trans and Cis
Yes, if the two identical atoms are on the opposite side, it's trans. If two identical atoms are not the same side, it's cis.
- Sun Nov 24, 2019 10:22 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Polar vs. Nonpolar
- Replies: 3
- Views: 219
Re: Polar vs. Nonpolar
If you look at its VSEPR structure, you can see that the dipole moment do not cancel out.
- Sun Nov 24, 2019 10:14 pm
- Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
- Topic: types of bonds
- Replies: 14
- Views: 1234
Re: types of bonds
Yes, two pi bonds and one sigma bond
- Sun Nov 24, 2019 10:11 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: AXE Format
- Replies: 34
- Views: 1261
Re: AXE Format
You can just write X and E without a subscript
- Sun Nov 17, 2019 9:06 pm
- Forum: Hybridization
- Topic: Homework Outline for Test
- Replies: 5
- Views: 295
Re: Homework Outline for Test
The test will be on VSEPR and IMF, which I believe are Focus 2E and 3F.
- Sun Nov 17, 2019 8:59 pm
- Forum: Sigma & Pi Bonds
- Topic: sigma and pi bonds
- Replies: 4
- Views: 302
Re: sigma and pi bonds
sigma bonds occur in single bonds, and pi bonds occur in double or triple bonds.
- Sun Nov 17, 2019 8:51 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Polar and Nonpolar
- Replies: 6
- Views: 639
Re: Polar and Nonpolar
Draw the Lewis structure and see if the dipole moments cancel out.
- Sun Nov 17, 2019 8:50 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: VSEPR
- Replies: 7
- Views: 367
Re: VSEPR
Yes that is what Lavelle said I believe.
- Sun Nov 17, 2019 8:46 pm
- Forum: Interionic and Intermolecular Forces (Ion-Ion, Ion-Dipole, Dipole-Dipole, Dipole-Induced Dipole, Dispersion/Induced Dipole-Induced Dipole/London Forces, Hydrogen Bonding)
- Topic: Boiling Points
- Replies: 7
- Views: 589
Re: Boiling Points
If the IMF is stronger, the boiling point increases.
- Mon Nov 11, 2019 12:40 pm
- Forum: Bond Lengths & Energies
- Topic: London Forces
- Replies: 6
- Views: 356
Re: London Forces
Yes, because electrons can fluctuate in all atoms.
- Mon Nov 11, 2019 12:39 pm
- Forum: Electronegativity
- Topic: Noble Gases
- Replies: 40
- Views: 12808
Re: Noble Gases
They are not included in electronegativity.
- Mon Nov 11, 2019 12:35 pm
- Forum: Dipole Moments
- Topic: Dipole Moments
- Replies: 6
- Views: 376
Re: Dipole Moments
Dipole moment is created because of the difference in the charges between two atoms.
- Mon Nov 11, 2019 12:34 pm
- Forum: Octet Exceptions
- Topic: More then 8 electrons
- Replies: 5
- Views: 434
Re: More then 8 electrons
Yes, it can fit into the d orbital.
- Mon Nov 11, 2019 12:33 pm
- Forum: Polarisability of Anions, The Polarizing Power of Cations
- Topic: Anions
- Replies: 7
- Views: 458
Re: Anions
No, not all anions are polarizable.
- Mon Nov 11, 2019 12:33 pm
- Forum: Sigma & Pi Bonds
- Topic: Chemical Bonds in chemistry
- Replies: 3
- Views: 254
Re: Chemical Bonds in chemistry
I believe 3 major bonds in chemistry are ionic, covalent, and metallic. Ionic bonds form due to the transfer of the ion, covalent bond form due to sharing of electrons between two atoms.
- Sun Nov 03, 2019 8:14 pm
- Forum: Electronegativity
- Topic: size
- Replies: 8
- Views: 502
Re: size
The smaller the atomic radius, the higher the electronegativity.
- Sun Nov 03, 2019 8:12 pm
- Forum: Sigma & Pi Bonds
- Topic: Quantum Numbers
- Replies: 9
- Views: 627
Re: Quantum Numbers
Quantum number presents the state of an electron. Therefore, with quantum number, you can distinguish the energy level of each orbitals.
- Sun Nov 03, 2019 8:11 pm
- Forum: Polarisability of Anions, The Polarizing Power of Cations
- Topic: High polarizing Power?
- Replies: 2
- Views: 231
Re: High polarizing Power?
When an ion has high polarizing power, it can cause large distortion. Compounds composed of highly polarizing cations and highly polarizable anions have significant covalent character in their bonding.
- Sun Nov 03, 2019 8:09 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: 1B.26
- Replies: 4
- Views: 184
Re: 1B.26
10m/s because it would be the range of the velocity.
- Sun Nov 03, 2019 8:08 pm
- Forum: Dipole Moments
- Topic: Midterm
- Replies: 8
- Views: 366
Re: Midterm
Yes I think so. He briefly talked about it before the class ended.
- Sun Nov 03, 2019 8:01 pm
- Forum: Wave Functions and s-, p-, d-, f- Orbitals
- Topic: What are the octet exceptions?
- Replies: 11
- Views: 536
Re: What are the octet exceptions?
Elements in group 13, like Boron, can have 3 pairs of e- instead of the octet.
- Sun Oct 27, 2019 9:21 pm
- Forum: Resonance Structures
- Topic: Resonance Structures
- Replies: 4
- Views: 180
Re: Resonance Structures
I believe you just have to measure all the possible resonance structures.
- Sun Oct 27, 2019 9:12 pm
- Forum: Electronegativity
- Topic: Electronegativity in Covalent Bonds
- Replies: 3
- Views: 105
Re: Electronegativity in Covalent Bonds
Yes. Electronegativity only happens in covalent bonds.
- Sun Oct 27, 2019 9:01 pm
- Forum: Lewis Structures
- Topic: Lewis Structure of Ions
- Replies: 6
- Views: 389
Re: Lewis Structure of Ions
Yes, you put the bracket and indicate its charge.
- Sun Oct 27, 2019 8:57 pm
- Forum: Ionic & Covalent Bonds
- Topic: Metalloids
- Replies: 5
- Views: 223
Re: Metalloids
Metalloids can form either ionic or covalent bonds.
- Sun Oct 27, 2019 8:53 pm
- Forum: Trends in The Periodic Table
- Topic: F orbital
- Replies: 3
- Views: 138
Re: F orbital
We don't really have to know much about the f orbital. Only s-, p-, d- orbitals.
- Sun Oct 20, 2019 7:34 pm
- Forum: *Shrodinger Equation
- Topic: Schrodinger for exam
- Replies: 20
- Views: 902
Re: Schrodinger for exam
I believe we only have to understand the general concept of the equation.
- Sun Oct 20, 2019 7:31 pm
- Forum: Quantum Numbers and The H-Atom
- Topic: spin magnetic quantum #
- Replies: 2
- Views: 122
Re: spin magnetic quantum #
Once all the orbitals have been filled up by the electron with +1/2 spin (arrows facing up), the second electron in the orbital would be filled by the electron with -1/2 spin (arrows facing down).
- Sun Oct 20, 2019 7:25 pm
- Forum: Einstein Equation
- Topic: Equation use
- Replies: 6
- Views: 367
Re: Equation use
I believe they would give you two of three variables (frequency, Planck's variable, and energy), asking you to find the one last variable. Also, you might have to use other equations to find one of those variables.
- Sun Oct 20, 2019 7:22 pm
- Forum: Properties of Light
- Topic: Week 3 Homework
- Replies: 9
- Views: 416
Re: Week 3 Homework
We can still do the quantum problems for this week homework!!
- Sun Oct 20, 2019 7:20 pm
- Forum: Properties of Light
- Topic: Next test
- Replies: 23
- Views: 1104
Re: Next test
Yes, we will get the equation sheet that we got for the first test.
- Sun Oct 20, 2019 7:19 pm
- Forum: Trends in The Periodic Table
- Topic: ionization energy
- Replies: 11
- Views: 1038
Re: ionization energy
That is correct, and they might ask you to compare the ionization energy of two atoms.
- Sun Oct 20, 2019 7:17 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Electron Configuration
- Replies: 5
- Views: 233
Re: Electron Configuration
The order goes like 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 and so on.
- Sun Oct 13, 2019 6:39 pm
- Forum: Photoelectric Effect
- Topic: confirmation.
- Replies: 5
- Views: 226
Re: confirmation.
Yes, which shows the particle-like quality of light.
- Sun Oct 13, 2019 6:36 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: ground/excited electron states
- Replies: 2
- Views: 158
Re: ground/excited electron states
Because if (a) was not at its excited state, the two arrows would be dispersed. (one arrow in each box).
- Sun Oct 13, 2019 6:29 pm
- Forum: Balancing Chemical Reactions
- Topic: Any Easy Way
- Replies: 10
- Views: 601
Re: Any Easy Way
I like to write down the number of each element on both sides. I also find using LCM useful when balancing reactions.
- Sun Oct 13, 2019 6:25 pm
- Forum: Limiting Reactant Calculations
- Topic: About Finding Limiting Reactant
- Replies: 7
- Views: 442
Re: About Finding Limiting Reactant
When finding limiting reactant, converting to mole makes the process lot easier. However, if the final answer should be in grams, you should convert moles to gram.
- Sun Oct 06, 2019 4:27 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Total Coulombic potential energy
- Replies: 2
- Views: 263
Total Coulombic potential energy
Can someone explain each components of the total coulombic potential energy?
- Sat Oct 05, 2019 12:11 am
- Forum: Balancing Chemical Reactions
- Topic: Compound names
- Replies: 11
- Views: 625
Re: Compound names
All the compound naming related materials are on page 60-67!
- Sat Oct 05, 2019 12:02 am
- Forum: Limiting Reactant Calculations
- Topic: Study Strategies/Youtube Videos
- Replies: 14
- Views: 606
Re: Study Strategies/Youtube Videos
I like using The Organic Chemistry Tutor channel, Khan Academy, and Bozemanscience!
- Sat Oct 05, 2019 12:00 am
- Forum: Accuracy, Precision, Mole, Other Definitions
- Topic: Showing work in detail
- Replies: 7
- Views: 636
Re: Showing work in detail
As long as you have the accurate unit for the final answer, it is okay to not write them all down.
- Fri Oct 04, 2019 11:58 pm
- Forum: SI Units, Unit Conversions
- Topic: Rounding
- Replies: 6
- Views: 410
Re: Rounding
For me, I usually write one digit more than the final sig fig. However, for the actual calculation, I just use whatever I have it on my calculator to yield the most accurate value for the answer.
- Fri Oct 04, 2019 11:44 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Electron configuration order
- Replies: 4
- Views: 267
Electron configuration order
When you write an electron configuration, does the order matter? For instance, in the homework question, it says [Ar]3d^3 4s^2, which is not in the order of 1s2s2p3s3p4s3d4p5s. Is there an any sort of rule you have to follow when you write an electron configuration?