Search found 56 matches

by Jennifer Yang 3F
Mon Dec 09, 2019 3:33 am
Forum: Hybridization
Topic: Charges
Replies: 4
Views: 47

Re: Charges

You can specify if the molecule is positive or negative.
by Jennifer Yang 3F
Mon Dec 09, 2019 3:30 am
Forum: Naming
Topic: "Ferrate"
Replies: 14
Views: 108

Re: "Ferrate"

Yes, it is latin prefix, and you just have to memorize the exceptions I believe.
by Jennifer Yang 3F
Mon Dec 09, 2019 12:18 am
Forum: Amphoteric Compounds
Topic: Amphoteric vs Amphiprotic
Replies: 8
Views: 54

Re: Amphoteric vs Amphiprotic

Amphiprotic includes Bronsted definition when amphoteric just means the compound can be both acid and base.
by Jennifer Yang 3F
Mon Dec 09, 2019 12:18 am
Forum: Amphoteric Compounds
Topic: Amphoteric vs Amphiprotic
Replies: 8
Views: 54

Re: Amphoteric vs Amphiprotic

Amphiprotic includes Bronsted definition when amphoteric just means the compound can be both acid and base.
by Jennifer Yang 3F
Mon Dec 09, 2019 12:18 am
Forum: Amphoteric Compounds
Topic: Amphoteric vs Amphiprotic
Replies: 8
Views: 54

Re: Amphoteric vs Amphiprotic

Amphiprotic includes Bronsted definition when amphoteric just means the compound can be both acid and base.
by Jennifer Yang 3F
Mon Dec 09, 2019 12:16 am
Forum: Calculating the pH of Salt Solutions
Topic: OH- and H+
Replies: 6
Views: 58

Re: OH- and H+

I also do the chemical reaction with water to see if it releases H+ or OH-
by Jennifer Yang 3F
Mon Dec 02, 2019 1:47 am
Forum: Industrial Examples
Topic: Coordination compounds as Chemotherapy drugs
Replies: 5
Views: 503

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.
by Jennifer Yang 3F
Mon Dec 02, 2019 1:46 am
Forum: Biological Examples
Topic: Biological Examples
Replies: 10
Views: 56

Re: Biological Examples

I believe there will be handful of short answer questions in the finals, including the role of biological/industrial examples.
by Jennifer Yang 3F
Mon Dec 02, 2019 1:44 am
Forum: Naming
Topic: oxidation
Replies: 8
Views: 39

Re: oxidation

I believe you add oxidation number after naming the metal part in parenthesis.
by Jennifer Yang 3F
Mon Dec 02, 2019 1:42 am
Forum: Biological Examples
Topic: Chemotherapy
Replies: 6
Views: 41

Re: Chemotherapy

I think we only have to know about cisplatin, which Dr. Lavelle went over in lecture.
by Jennifer Yang 3F
Mon Dec 02, 2019 1:40 am
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Cis vs Trans
Replies: 21
Views: 135

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.
by Jennifer Yang 3F
Mon Dec 02, 2019 1:38 am
Forum: Naming
Topic: Final Exam?
Replies: 20
Views: 127

Re: Final Exam?

It is cumulative. So you need to know everything we went over in class since the beginning of the quarter.
by Jennifer Yang 3F
Sun Nov 24, 2019 10:31 pm
Forum: Naming
Topic: Order in Naming
Replies: 12
Views: 56

Re: Order in Naming

Put them in alphabetical order and then determine its charge.
by Jennifer Yang 3F
Sun Nov 24, 2019 10:30 pm
Forum: Naming
Topic: Trans and Cis
Replies: 8
Views: 47

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.
by Jennifer Yang 3F
Sun Nov 24, 2019 10:22 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Polar vs. Nonpolar
Replies: 3
Views: 22

Re: Polar vs. Nonpolar

If you look at its VSEPR structure, you can see that the dipole moment do not cancel out.
by Jennifer Yang 3F
Sun Nov 24, 2019 10:14 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: types of bonds
Replies: 14
Views: 258

Re: types of bonds

Yes, two pi bonds and one sigma bond
by Jennifer Yang 3F
Sun Nov 24, 2019 10:11 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: AXE Format
Replies: 34
Views: 119

Re: AXE Format

You can just write X and E without a subscript
by Jennifer Yang 3F
Sun Nov 17, 2019 9:06 pm
Forum: Hybridization
Topic: Homework Outline for Test
Replies: 5
Views: 40

Re: Homework Outline for Test

The test will be on VSEPR and IMF, which I believe are Focus 2E and 3F.
by Jennifer Yang 3F
Sun Nov 17, 2019 8:59 pm
Forum: Sigma & Pi Bonds
Topic: sigma and pi bonds
Replies: 4
Views: 18

Re: sigma and pi bonds

sigma bonds occur in single bonds, and pi bonds occur in double or triple bonds.
by Jennifer Yang 3F
Sun Nov 17, 2019 8:51 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Polar and Nonpolar
Replies: 6
Views: 47

Re: Polar and Nonpolar

Draw the Lewis structure and see if the dipole moments cancel out.
by Jennifer Yang 3F
Sun Nov 17, 2019 8:50 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: VSEPR
Replies: 7
Views: 33

Re: VSEPR

Yes that is what Lavelle said I believe.
by Jennifer Yang 3F
Mon Nov 11, 2019 12:40 pm
Forum: Bond Lengths & Energies
Topic: London Forces
Replies: 6
Views: 41

Re: London Forces

Yes, because electrons can fluctuate in all atoms.
by Jennifer Yang 3F
Mon Nov 11, 2019 12:39 pm
Forum: Electronegativity
Topic: Noble Gases
Replies: 19
Views: 148

Re: Noble Gases

They are not included in electronegativity.
by Jennifer Yang 3F
Mon Nov 11, 2019 12:35 pm
Forum: Dipole Moments
Topic: Dipole Moments
Replies: 6
Views: 22

Re: Dipole Moments

Dipole moment is created because of the difference in the charges between two atoms.
by Jennifer Yang 3F
Mon Nov 11, 2019 12:34 pm
Forum: Octet Exceptions
Topic: More then 8 electrons
Replies: 5
Views: 40

Re: More then 8 electrons

Yes, it can fit into the d orbital.
by Jennifer Yang 3F
Mon Nov 11, 2019 12:33 pm
Forum: Polarisability of Anions, The Polarizing Power of Cations
Topic: Anions
Replies: 7
Views: 28

Re: Anions

No, not all anions are polarizable.
by Jennifer Yang 3F
Mon Nov 11, 2019 12:33 pm
Forum: Sigma & Pi Bonds
Topic: Chemical Bonds in chemistry
Replies: 3
Views: 18

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.
by Jennifer Yang 3F
Sun Nov 03, 2019 8:14 pm
Forum: Electronegativity
Topic: size
Replies: 8
Views: 26

Re: size

The smaller the atomic radius, the higher the electronegativity.
by Jennifer Yang 3F
Sun Nov 03, 2019 8:12 pm
Forum: Sigma & Pi Bonds
Topic: Quantum Numbers
Replies: 9
Views: 61

Re: Quantum Numbers

Quantum number presents the state of an electron. Therefore, with quantum number, you can distinguish the energy level of each orbitals.
by Jennifer Yang 3F
Sun Nov 03, 2019 8:11 pm
Forum: Polarisability of Anions, The Polarizing Power of Cations
Topic: High polarizing Power?
Replies: 2
Views: 16

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.
by Jennifer Yang 3F
Sun Nov 03, 2019 8:09 pm
Forum: Heisenberg Indeterminacy (Uncertainty) Equation
Topic: 1B.26
Replies: 4
Views: 52

Re: 1B.26

10m/s because it would be the range of the velocity.
by Jennifer Yang 3F
Sun Nov 03, 2019 8:08 pm
Forum: Dipole Moments
Topic: Midterm
Replies: 8
Views: 87

Re: Midterm

Yes I think so. He briefly talked about it before the class ended.
by Jennifer Yang 3F
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: 66

Re: What are the octet exceptions?

Elements in group 13, like Boron, can have 3 pairs of e- instead of the octet.
by Jennifer Yang 3F
Sun Oct 27, 2019 9:21 pm
Forum: Resonance Structures
Topic: Resonance Structures
Replies: 4
Views: 35

Re: Resonance Structures

I believe you just have to measure all the possible resonance structures.
by Jennifer Yang 3F
Sun Oct 27, 2019 9:12 pm
Forum: Electronegativity
Topic: Electronegativity in Covalent Bonds
Replies: 3
Views: 15

Re: Electronegativity in Covalent Bonds

Yes. Electronegativity only happens in covalent bonds.
by Jennifer Yang 3F
Sun Oct 27, 2019 9:01 pm
Forum: Lewis Structures
Topic: Lewis Structure of Ions
Replies: 6
Views: 35

Re: Lewis Structure of Ions

Yes, you put the bracket and indicate its charge.
by Jennifer Yang 3F
Sun Oct 27, 2019 8:57 pm
Forum: Ionic & Covalent Bonds
Topic: Metalloids
Replies: 5
Views: 32

Re: Metalloids

Metalloids can form either ionic or covalent bonds.
by Jennifer Yang 3F
Sun Oct 27, 2019 8:53 pm
Forum: Trends in The Periodic Table
Topic: F orbital
Replies: 3
Views: 10

Re: F orbital

We don't really have to know much about the f orbital. Only s-, p-, d- orbitals.
by Jennifer Yang 3F
Sun Oct 20, 2019 7:34 pm
Forum: *Shrodinger Equation
Topic: Schrodinger for exam
Replies: 9
Views: 120

Re: Schrodinger for exam

I believe we only have to understand the general concept of the equation.
by Jennifer Yang 3F
Sun Oct 20, 2019 7:31 pm
Forum: Quantum Numbers and The H-Atom
Topic: spin magnetic quantum #
Replies: 2
Views: 15

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).
by Jennifer Yang 3F
Sun Oct 20, 2019 7:25 pm
Forum: Einstein Equation
Topic: Equation use
Replies: 6
Views: 42

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.
by Jennifer Yang 3F
Sun Oct 20, 2019 7:22 pm
Forum: Properties of Light
Topic: Week 3 Homework
Replies: 9
Views: 61

Re: Week 3 Homework

We can still do the quantum problems for this week homework!!
by Jennifer Yang 3F
Sun Oct 20, 2019 7:20 pm
Forum: Properties of Light
Topic: Next test
Replies: 23
Views: 194

Re: Next test

Yes, we will get the equation sheet that we got for the first test.
by Jennifer Yang 3F
Sun Oct 20, 2019 7:19 pm
Forum: Trends in The Periodic Table
Topic: ionization energy
Replies: 11
Views: 317

Re: ionization energy

That is correct, and they might ask you to compare the ionization energy of two atoms.
by Jennifer Yang 3F
Sun Oct 20, 2019 7:17 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron Configuration
Replies: 5
Views: 28

Re: Electron Configuration

The order goes like 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 and so on.
by Jennifer Yang 3F
Sun Oct 13, 2019 6:39 pm
Forum: Photoelectric Effect
Topic: confirmation.
Replies: 5
Views: 33

Re: confirmation.

Yes, which shows the particle-like quality of light.
by Jennifer Yang 3F
Sun Oct 13, 2019 6:36 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: ground/excited electron states
Replies: 2
Views: 76

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).
by Jennifer Yang 3F
Sun Oct 13, 2019 6:29 pm
Forum: Balancing Chemical Reactions
Topic: Any Easy Way
Replies: 10
Views: 99

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.
by Jennifer Yang 3F
Sun Oct 13, 2019 6:25 pm
Forum: Limiting Reactant Calculations
Topic: About Finding Limiting Reactant
Replies: 7
Views: 78

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.
by Jennifer Yang 3F
Sun Oct 06, 2019 4:27 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Total Coulombic potential energy
Replies: 2
Views: 35

Total Coulombic potential energy

Can someone explain each components of the total coulombic potential energy?
by Jennifer Yang 3F
Sat Oct 05, 2019 12:11 am
Forum: Balancing Chemical Reactions
Topic: Compound names
Replies: 11
Views: 96

Re: Compound names

All the compound naming related materials are on page 60-67!
by Jennifer Yang 3F
Sat Oct 05, 2019 12:02 am
Forum: Limiting Reactant Calculations
Topic: Study Strategies/Youtube Videos
Replies: 14
Views: 143

Re: Study Strategies/Youtube Videos

I like using The Organic Chemistry Tutor channel, Khan Academy, and Bozemanscience!
by Jennifer Yang 3F
Sat Oct 05, 2019 12:00 am
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Showing work in detail
Replies: 7
Views: 124

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.
by Jennifer Yang 3F
Fri Oct 04, 2019 11:58 pm
Forum: SI Units, Unit Conversions
Topic: Rounding
Replies: 6
Views: 68

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.
by Jennifer Yang 3F
Fri Oct 04, 2019 11:44 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Electron configuration order
Replies: 4
Views: 47

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?

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