Search found 51 matches

by Kimberly Bauer 4E
Tue Dec 03, 2019 1:11 pm
Forum: *Stereochemistry
Topic: stereochemistry reference
Replies: 2
Views: 109

Re: stereochemistry reference

Varadhan_3G wrote:Stereochemistry refers to the spatial arrangement of atoms. It involves isomerism--stereoisomerism, constitutional isomerism. If you would like I can send you a powerpoint I made on the subject! :)


Yes can you pls (:
by Kimberly Bauer 4E
Mon Dec 02, 2019 12:18 am
Forum: Properties & Structures of Inorganic & Organic Bases
Topic: Difference between inorganic and organic
Replies: 4
Views: 127

Difference between inorganic and organic

What is the difference between inorganic and organic bases?
by Kimberly Bauer 4E
Mon Dec 02, 2019 12:17 am
Forum: *Stereochemistry
Topic: stereochemistry reference
Replies: 2
Views: 109

stereochemistry reference

What does stereochemistry refer to?
by Kimberly Bauer 4E
Sun Nov 24, 2019 7:08 pm
Forum: Lewis Acids & Bases
Topic: Proton acceptor and proton donor?
Replies: 33
Views: 259

Proton acceptor and proton donor?

Which is a proton acceptor and which is the proton donor? I always forget it lol
by Kimberly Bauer 4E
Sun Nov 24, 2019 7:00 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Bond order
Replies: 5
Views: 119

Bond order

What does bond order refer to?
by Kimberly Bauer 4E
Sun Nov 24, 2019 6:56 pm
Forum: Industrial Examples
Topic: Difference between biological and industrial examples?
Replies: 3
Views: 113

Difference between biological and industrial examples?

What is the main difference between biological and industrial examples of coordination compounds and can you give an example of each?
by Kimberly Bauer 4E
Sun Nov 24, 2019 6:55 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Ligands
Replies: 5
Views: 36

Ligands

What does the ligand refer to?
by Kimberly Bauer 4E
Sun Nov 24, 2019 6:52 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: What are coordination numbers?
Replies: 3
Views: 33

What are coordination numbers?

What are coordination numbers and what do they represent?
by Kimberly Bauer 4E
Mon Nov 18, 2019 4:21 pm
Forum: Administrative Questions and Class Announcements
Topic: Test 2 Length
Replies: 9
Views: 99

Re: Test 2 Length

205150314 wrote:
Kimberly Bauer 4E wrote:How many questions are on test 2 and what topics will be covered aside from polarity, IMFS, VSEPR, and Sigma and Pi bonds? Is it mostly conceptual compared to Test1 and the midterm?


sigma and pi bonds?


We learned about them today (11/18) in lecture (:
by Kimberly Bauer 4E
Sun Nov 17, 2019 3:58 pm
Forum: Administrative Questions and Class Announcements
Topic: Test 2 Length
Replies: 9
Views: 99

Test 2 Length

How many questions are on test 2 and what topics will be covered aside from polarity, IMFS, VSEPR, and Sigma and Pi bonds? Is it mostly conceptual compared to Test1 and the midterm?
by Kimberly Bauer 4E
Sat Nov 09, 2019 9:46 pm
Forum: Bond Lengths & Energies
Topic: Dissociation Energy
Replies: 5
Views: 44

Re: Dissociation Energy

Fiona Latifi 1B wrote:Dissociation energy refers to the amount of energy required to break down a molecule into singular atoms.


What does it refer to? Like the bond or the atoms in a molecule?
by Kimberly Bauer 4E
Sat Nov 09, 2019 9:45 pm
Forum: Bond Lengths & Energies
Topic: how to determine the energy of a bond
Replies: 6
Views: 72

how to determine the energy of a bond

How do you determine the energy of a bond?
by Kimberly Bauer 4E
Sat Nov 09, 2019 9:42 pm
Forum: Bond Lengths & Energies
Topic: Dissociation Energy
Replies: 5
Views: 44

Dissociation Energy

What does dissociation energy refer to?
by Kimberly Bauer 4E
Sat Nov 09, 2019 9:41 pm
Forum: Polarisability of Anions, The Polarizing Power of Cations
Topic: Polarisability Trend
Replies: 3
Views: 31

Polarisability Trend

Is there a trend in the periodic table that gives polarizability? If not, how can we tell an atom has greater polarizability than another?
by Kimberly Bauer 4E
Sat Nov 09, 2019 9:40 pm
Forum: Bond Lengths & Energies
Topic: Strongest Bond
Replies: 15
Views: 127

Strongest Bond

What is the strongest to weakest bond?
by Kimberly Bauer 4E
Sat Nov 09, 2019 9:39 pm
Forum: Dipole Moments
Topic: Dipole Bonds
Replies: 1
Views: 28

Dipole Bonds

Can someone explain the dipole dipole bonds? I know there's more than one type of dipole bond can someone explain all of them?
by Kimberly Bauer 4E
Tue Nov 05, 2019 5:28 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: 1E.25
Replies: 2
Views: 107

Re: 1E.25

It just means to give the configuration for the outer most shell of electrons (valence electrons) as opposed to the entire electron configuration, in which you would start with 1s2 2s2 etc. Another way of thinking about it is that the valence electron configuration is the configuration from the las...
by Kimberly Bauer 4E
Tue Nov 05, 2019 4:28 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: 1E.25
Replies: 2
Views: 107

1E.25

Problem 1E.25 on the homework reads: Give the notation for the valence-shell configuration (including the outermost d-electrons) of (a) the alkali metals; (b) Group 15 elements; (c) Group 5 transition metals; (d) the “coinage” metals (Cu, Ag, Au). Does anyone know what they mean by "valence-she...
by Kimberly Bauer 4E
Tue Nov 05, 2019 12:59 pm
Forum: Administrative Questions and Class Announcements
Topic: Discussion on Wednesday 11/6
Replies: 2
Views: 33

Discussion on Wednesday 11/6

Do we still have discussion even though the midterm is that night?
by Kimberly Bauer 4E
Mon Nov 04, 2019 9:43 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: 1D.23 Number of Orbitals question
Replies: 2
Views: 132

1D.23 Number of Orbitals question

How many orbitals can have the following quantum numbers in an atom:
(a)n=2,l=1
(b)n=4,l=2,ml=-2
(c)n=2
(d)n=3,l=2,ml=+1

Wouldn't it be noted by the quantum number l as that one tells us whether it's a s-, p-, d-, or f- orbital? The solutions manual says different.
by Kimberly Bauer 4E
Mon Nov 04, 2019 3:34 am
Forum: Einstein Equation
Topic: Module Question
Replies: 1
Views: 129

Module Question

Molybdenum metal must absorb radiation with a minimum frequency of 1.09 x 1015 s-1 before it can emit an electron from its surface. Answer the following two questions.
A. What is the minimum energy needed to produce this effect?

How do I solve this problem?
by Kimberly Bauer 4E
Mon Nov 04, 2019 12:06 am
Forum: Einstein Equation
Topic: Module Question
Replies: 2
Views: 125

Re: Module Question

Rishika Yadav wrote:c = wavelength x frequency ==> c/wavelength = frequency
E = h x frequency ==> E = h x c/wavelength ==> E x wavelength = hc ==> wavelength = hc/E

OHHHH okay thank you LOL
by Kimberly Bauer 4E
Sun Nov 03, 2019 11:56 pm
Forum: Einstein Equation
Topic: Module Question
Replies: 2
Views: 125

Module Question

How do you combine the c= wavelength x frequency and the E=h x frequency to be wavelength = hc/E? I watched it in the module but I'm not certain I grasped how he combined both equations.
by Kimberly Bauer 4E
Sun Nov 03, 2019 4:36 pm
Forum: Quantum Numbers and The H-Atom
Topic: Homework Question. 2.51 [ENDORSED]
Replies: 4
Views: 2643

Re: Homework Question. 2.51 [ENDORSED]

tiffanyteguh1C wrote:It also helps to draw out the Aufbau structure of the highest energy orbital to visualize this.

What is an Aufbau structure?
by Kimberly Bauer 4E
Sun Nov 03, 2019 4:35 pm
Forum: Bond Lengths & Energies
Topic: Midterm Question
Replies: 5
Views: 77

Midterm Question

Are bond lengths and energies going to be on the midterm this Wednesday, November 6, 2019? If so, what is there to know about them?
by Kimberly Bauer 4E
Sun Nov 03, 2019 4:32 pm
Forum: Lewis Structures
Topic: Lewis Structure Exemptions
Replies: 2
Views: 28

Lewis Structure Exemptions

Are there any exceptions to the octet rule when drawing Lewis Structures? If so, what are they?
by Kimberly Bauer 4E
Sun Nov 03, 2019 4:29 pm
Forum: Photoelectric Effect
Topic: Photoelectric Effect Equation
Replies: 3
Views: 45

Photoelectric Effect Equation

Is there an equation we need to use with the photoelectric effect and if there is what do we use and when do we know when to use it (keywords etc.)?
by Kimberly Bauer 4E
Sun Nov 03, 2019 4:26 pm
Forum: DeBroglie Equation
Topic: When to use the DeBroglie equation?
Replies: 6
Views: 74

When to use the DeBroglie equation?

What does the DeBroglie equation look for and when do we use it (Like what does the problem asks for that requires the equation)?
by Kimberly Bauer 4E
Sun Oct 27, 2019 9:54 pm
Forum: Ionic & Covalent Bonds
Topic: Bond lengths
Replies: 3
Views: 46

Bond lengths

In my lecture notes, I have that N-O bond length in N03- =1.24 Angstroms and a C-C bond length is 1.39 Angstroms. Is this a standard measurement for all bonds between these elements?
by Kimberly Bauer 4E
Sun Oct 27, 2019 9:47 pm
Forum: Ionic & Covalent Bonds
Topic: Single bond vs. Double bond vs. Triple bond
Replies: 3
Views: 59

Single bond vs. Double bond vs. Triple bond

Can someone explain why a single bond is longer than a double bond and a triple bond?
by Kimberly Bauer 4E
Sun Oct 27, 2019 9:43 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Orbital notation
Replies: 2
Views: 33

Orbital notation

Just to be clear:
s- 1 ___
p- 3 ___ ___ ___
d- 5 ___ ___ ___ ___ ___ for orbital notation
and how many orbitals does f have and how do you find out?
by Kimberly Bauer 4E
Sun Oct 27, 2019 9:35 pm
Forum: Formal Charge and Oxidation Numbers
Topic: Formal charge
Replies: 3
Views: 53

Formal charge

For example, S04^-2:
When finding the formal charge for this, do you use the formal charge equation for each- such as S by itself and one of the Os by itself?
by Kimberly Bauer 4E
Tue Oct 22, 2019 12:16 am
Forum: Trends in The Periodic Table
Topic: Ionic radii
Replies: 11
Views: 82

Re: Ionic radii

I have a question regarding whether it's a cation or anion. Does that affect the ionic radius of the element? In my notes, I wrote "cations are smaller than their parent atoms and anions are larger"
by Kimberly Bauer 4E
Sun Oct 20, 2019 6:22 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Building Up Principle
Replies: 2
Views: 33

Building Up Principle

Can someone explain this principle and provide examples?
by Kimberly Bauer 4E
Sun Oct 20, 2019 6:20 pm
Forum: Quantum Numbers and The H-Atom
Topic: Orbital orders
Replies: 2
Views: 52

Orbital orders

Within a shell the order is: s < p < d<f. Can someone explain this to me as I recall hearing that they all can't exist at the same time or there's limitations to it? Like s has to be 1 or p has to be 1
by Kimberly Bauer 4E
Sun Oct 20, 2019 6:18 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: s-, p-, d- ,f- orbitals
Replies: 10
Views: 123

s-, p-, d- ,f- orbitals

When talking about these orbitals, what does it mean when it says the electron is in 2px state?
by Kimberly Bauer 4E
Sun Oct 20, 2019 5:01 pm
Forum: Quantum Numbers and The H-Atom
Topic: Electrostatic potential energy
Replies: 3
Views: 42

Electrostatic potential energy

In the equation (q1)(q2)/r, what are the q1 and q2 charges referring to?
by Kimberly Bauer 4E
Sun Oct 20, 2019 4:58 pm
Forum: Quantum Numbers and The H-Atom
Topic: Difference in Quantum Numbers?
Replies: 2
Views: 35

Difference in Quantum Numbers?

Can someone explain the difference between the principle, angular momentum, and magnetic quantum numbers?
by Kimberly Bauer 4E
Sun Oct 13, 2019 10:15 pm
Forum: Properties of Electrons
Topic: Photons
Replies: 9
Views: 118

Photons

Can a photon ever NOT have enough energy to eject one e-, and if so what happens?
by Kimberly Bauer 4E
Sun Oct 13, 2019 10:09 pm
Forum: Properties of Electrons
Topic: electron size
Replies: 3
Views: 33

Re: electron size

Usually we won't be asked to remember that because the mass is extremely tiny but it is 9.10938356 x 10^-31 kg.
by Kimberly Bauer 4E
Sun Oct 13, 2019 10:06 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: When to use the Bohr Frequency Condition?
Replies: 3
Views: 39

When to use the Bohr Frequency Condition?

When do we use the Bohr Frequency Condition and what is the background on it?
by Kimberly Bauer 4E
Sun Oct 13, 2019 10:02 pm
Forum: Properties of Electrons
Topic: Photons and Electrons
Replies: 2
Views: 27

Photons and Electrons

Does one photon always interact with only one electron?
by Kimberly Bauer 4E
Sun Oct 13, 2019 9:57 pm
Forum: *Black Body Radiation
Topic: What is the function of blackbodies?
Replies: 2
Views: 128

What is the function of blackbodies?

What are blackbodies, what do they do, and when do we use the black body radiation equation?
by Kimberly Bauer 4E
Sun Oct 13, 2019 9:54 pm
Forum: Photoelectric Effect
Topic: Electrons and High Intensity Light
Replies: 2
Views: 41

Electrons and High Intensity Light

In a key concept we went over in class that states the above equations (relating to the Photoelectric Effect) illustrate the conservation of energy unless E (photon) is greater than or equal to E (energy remove e-) then e- is not emitted even for high intensity light. Can someone explain this and po...
by Kimberly Bauer 4E
Sun Oct 13, 2019 9:51 pm
Forum: Properties of Light
Topic: When to use the Planck's Constant?
Replies: 6
Views: 46

When to use the Planck's Constant?

I notice we used 6.63 x 10^34 in an example in class when finding the wavelength, is there any other formulas I might need to use the equation for?
by Kimberly Bauer 4E
Fri Oct 04, 2019 1:50 am
Forum: Empirical & Molecular Formulas
Topic: When to know to multiply by a whole number when finding the empirical formula
Replies: 5
Views: 77

Re: When to know to multiply by a whole number when finding the empirical formula

When finding the empirical formula, after you divide by the smallest number you kind of have to use your best judgment to determine whether you have to multiply by a whole number or not, and in most cases you do. Considering 1.299, would you believe it to be close to 1, well not really since it is ...
by Kimberly Bauer 4E
Fri Oct 04, 2019 1:34 am
Forum: Empirical & Molecular Formulas
Topic: When to know to multiply by a whole number when finding the empirical formula
Replies: 5
Views: 77

When to know to multiply by a whole number when finding the empirical formula

I'm doing Fundamentals F.11 letter B and I was dividing 31.91 K/30.0983 and it gave me 1.060. I found the rest of the calculations for the other elements and I ended up dividing each of the numbers by the smallest number which was 0.8160. I got 1.299 for K. When do I know when to multiply to find a ...
by Kimberly Bauer 4E
Fri Oct 04, 2019 12:50 am
Forum: Empirical & Molecular Formulas
Topic: Homework Question F.9
Replies: 6
Views: 91

Re: Homework Question F.9

Yes, you would assume that your sample is 100 g, but to convert to moles, you actually have to divide by the molar mass of each element as found on the periodic table (so 12.01 g/mol for C). You don't need to divide 63.15 by 100 because if you assume the sample is 100 g, then 63.15% of 100 would ju...
by Kimberly Bauer 4E
Thu Oct 03, 2019 11:12 pm
Forum: Empirical & Molecular Formulas
Topic: Homework Question F.9
Replies: 6
Views: 91

Homework Question F.9

Vanillin is found in vanilla extracted from Mexican orchids.A report on the analysis of vanillin listed the mass percentage com- position as 63.15% C, 5.30% H, and 31.55% O. In what atom ratios are the atoms present in vanillin? For this problem, I understand we're finding the empirical formula. All...
by Kimberly Bauer 4E
Thu Oct 03, 2019 10:35 pm
Forum: Empirical & Molecular Formulas
Topic: What decimal place to round to when taking masses from the Periodic Table?
Replies: 19
Views: 328

What decimal place to round to when taking masses from the Periodic Table?

I am aware different periodic tables give different amounts for the atomic mass. Is there a certain decimal place we should round to or should we put in the whole number for the atomic mass and in calculating molar mass?
by Kimberly Bauer 4E
Wed Oct 02, 2019 9:16 pm
Forum: SI Units, Unit Conversions
Topic: Fundamentals E Question E.1
Replies: 3
Views: 45

Fundamentals E Question E.1

This homework problem reads: E.1 The field of nanotechnology offers some intriguing possibili- ties, such as the creation of fibers one atom wide. Suppose you were able to string together 1.00 mol Ag atoms, each of radius 144 pm, into one of these fibers by encapsulating them in carbon nanotubes. Ho...

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