Search found 31 matches

by Avery Zuelch 1D
Sat Dec 08, 2018 3:16 pm
Forum: Conjugate Acids & Bases
Topic: Strong acids and bases to memorize
Replies: 9
Views: 157

Re: Strong acids and bases to memorize

Is there a list to memorize for strong bases?
by Avery Zuelch 1D
Sat Dec 08, 2018 3:12 pm
Forum: Air Pollution & Acid Rain
Topic: Acid Rain Damage [ENDORSED]
Replies: 5
Views: 580

Re: Acid Rain Damage [ENDORSED]

Do we think that there are going to be question on the final regarding the chemical makeup and chemical reactions that take place during the formation of acid rain?
by Avery Zuelch 1D
Wed Dec 05, 2018 8:34 pm
Forum: Administrative Questions and Class Announcements
Topic: FINAL PRACTICE - Lyndon's Churro Review Session [ENDORSED]
Replies: 118
Views: 4699

Re: FINAL PRACTICE - Lyndon's Churro Review Session [ENDORSED]

Thank you!! Your sessions and review problems are always so helpful!!
by Avery Zuelch 1D
Wed Dec 05, 2018 9:42 am
Forum: Determining Molecular Shape (VSEPR)
Topic: AX2E2
Replies: 14
Views: 208

Re: AX2E2

what would make the bond angles equal to 109.5? or are they always less than it?
by Avery Zuelch 1D
Wed Dec 05, 2018 9:40 am
Forum: Naming
Topic: naming differences
Replies: 6
Views: 89

Re: naming differences

When do we use bis-, tris- etc. vs di- tri-, etc?
by Avery Zuelch 1D
Wed Dec 05, 2018 9:38 am
Forum: Lewis Acids & Bases
Topic: Lewis Acids and Bronstead Acids
Replies: 1
Views: 37

Lewis Acids and Bronstead Acids

What's the difference between a Lewis Acid and a Bronstead acid? I'm actually really confused.
by Avery Zuelch 1D
Sun Nov 25, 2018 8:12 pm
Forum: Hybridization
Topic: Hybridization
Replies: 5
Views: 84

Re: Hybridization

Yes, I believe we only need to know up to that amount. I would only assume this because no problems that we covered in class or in the homework have gone above it.
by Avery Zuelch 1D
Sun Nov 25, 2018 8:09 pm
Forum: Hybridization
Topic: Test 3
Replies: 13
Views: 152

Re: Test 3

When it says "3.12 and onward", what topics does that include? I'm assuming hybridization and things of that nature?
by Avery Zuelch 1D
Mon Nov 12, 2018 4:57 pm
Forum: Ionic & Covalent Bonds
Topic: Ionic Bonds with Covalent Character
Replies: 3
Views: 69

Re: Ionic Bonds with Covalent Character

They are less soluble in water because the covalent bonds are holding the atoms together stronger than with the other type of bond. It takes more to break apart the covalent bond.
by Avery Zuelch 1D
Mon Nov 12, 2018 4:53 pm
Forum: Determining Molecular Shape (VSEPR)
Topic: Molecular Shape
Replies: 6
Views: 84

Re: Molecular Shape

I'm still a bit lost.. What's the difference between dotted lines and a solid line? I thought that they were both notations for interactions?
by Avery Zuelch 1D
Sun Nov 04, 2018 8:02 pm
Forum: Ionic & Covalent Bonds
Topic: Chem Midterm
Replies: 13
Views: 138

Re: Chem Midterm

Do you guys know how many points total you can get taken off of the midterm if you miss sig figs and units, but get all of the math/concepts right?
by Avery Zuelch 1D
Sun Nov 04, 2018 7:59 pm
Forum: Lewis Structures
Topic: Expanded Octet
Replies: 4
Views: 68

Re: Expanded Octet

The atom that is in row three or below is able to form an expanded octet!
by Avery Zuelch 1D
Sun Nov 04, 2018 7:57 pm
Forum: Electronegativity
Topic: Electronegativity vs. Ionization Energy
Replies: 3
Views: 60

Re: Electronegativity vs. Ionization Energy

Does it work so that the same trends for electronegativity also apply for ionization energy and electron affinity?
by Avery Zuelch 1D
Sun Oct 28, 2018 10:12 pm
Forum: Electronegativity
Topic: Test 3. Question 7.
Replies: 6
Views: 230

Re: Test 3. Question 7.

The difference in the electro negativity defines the ionic character !!
by Avery Zuelch 1D
Sun Oct 28, 2018 10:11 pm
Forum: Ionic & Covalent Bonds
Topic: the Octet rule
Replies: 21
Views: 268

Re: the Octet rule

Yes they always follow the octet rule! Except for hydrogen. That only gets two electrons
by Avery Zuelch 1D
Sun Oct 28, 2018 10:10 pm
Forum: Lewis Structures
Topic: Dots in Lewis Stucture
Replies: 14
Views: 256

Re: Dots in Lewis Stucture

I would say that it doesn’t matter,yet. I would say place one dot on each side before you add a second dot to the side.
by Avery Zuelch 1D
Sun Oct 21, 2018 4:29 pm
Forum: Photoelectric Effect
Topic: Test #2
Replies: 9
Views: 206

Re: Test #2

Hi! I've heard that test two is only going to be on the things that we have learned in lecture. However, I'd prepare just in case because you never know when a curveball will be thrown!
by Avery Zuelch 1D
Sun Oct 21, 2018 4:28 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: shells
Replies: 2
Views: 59

Re: shells

Like stated above, Dr. Lavelle said that that was beyond what is required to be known for exam day. You do, however, need to know how to apply x,y, and z to the topic!
by Avery Zuelch 1D
Sun Oct 21, 2018 4:25 pm
Forum: Properties of Light
Topic: Test 2
Replies: 7
Views: 120

Re: Test 2

Do we know if the test will be in a similar format to test one (same number of questions and all free response)?
by Avery Zuelch 1D
Wed Oct 17, 2018 2:53 pm
Forum: *Shrodinger Equation
Topic: Test 2
Replies: 5
Views: 263

Test 2

On Dr. Lavelle's website, he has outlines for each section that covers the content that we should know for the tests in detail. What outlines does test two cover? I'm trying to get ahead in my studying!
by Avery Zuelch 1D
Sun Oct 14, 2018 6:03 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Solving for frequency
Replies: 3
Views: 68

Re: Solving for frequency

Hz and S-1 are both units of frequency, but in almost every additional example that I have come across, the frequency has been measured in Hz. Would an equivalent in both be acceptable?
by Avery Zuelch 1D
Sun Oct 14, 2018 6:01 pm
Forum: DeBroglie Equation
Topic: De Broglie Equation Example
Replies: 4
Views: 67

Re: De Broglie Equation Example

What would be an example of something that does have measurable wavelength properties? I know Dr. Lavelle mentioned something in class about a baseball, but that is not really applicable to this class's content.
by Avery Zuelch 1D
Sun Oct 14, 2018 5:58 pm
Forum: Properties of Electrons
Topic: Wave Length Calculations
Replies: 5
Views: 65

Re: Wave Length Calculations

I think it's crazy that any wavelength smaller than 10^-18 is just a theory. For me, it is hard to grasp the concept that 10^-18 is measurable, but just .000001 smaller than that number is not considered measurable. What is the defining line for measurable vs. non-measurable.
by Avery Zuelch 1D
Thu Oct 11, 2018 1:34 pm
Forum: Ideal Gases
Topic: Reading the textbook [ENDORSED]
Replies: 81
Views: 27030

Re: Reading the textbook [ENDORSED]

I read the textbook after a lecture when I don't fully understand the topic while discussed in class. While the book uses some different symbols/terms than in lecture, I find that reading the book explains the material in an alternate fashion, which sometimes helps. However, I always go on Dr. Lavel...
by Avery Zuelch 1D
Thu Oct 11, 2018 1:29 pm
Forum: Properties of Light
Topic: Wavelength
Replies: 10
Views: 101

Re: Wavelength

Hi! Just make sure that when you do the conversions that all of the measurements are in the same units. If not, the answer will be wrong. In terms of the final answer, i've read to put them in meters, unless otherwise stated in the problem!
by Avery Zuelch 1D
Tue Oct 09, 2018 11:12 pm
Forum: Limiting Reactant Calculations
Topic: How to determine the limiting reactant???? [ENDORSED]
Replies: 8
Views: 726

How to determine the limiting reactant???? [ENDORSED]

Hi guys! So in reviewing for the first test, I have found myself stuck on trying to determine the limiting reactant. I have tried numerous times attempting what Dr. Lavelle did in class to determine it, but it just isn't clicking. Does anyone have any advice??
by Avery Zuelch 1D
Thu Oct 04, 2018 9:26 pm
Forum: Accuracy, Precision, Mole, Other Definitions
Topic: Homework Problem E.21, 6th Edition
Replies: 1
Views: 45

Homework Problem E.21, 6th Edition

Hi guys, so as I work through problem E.21 part B, i realize that there is a number in scientific notation that seems off to me. It is 25.92x10^-3.. I thought when you are in scientific notation that there is only supposed to be one figure before the decimal place? Please help!
by Avery Zuelch 1D
Tue Oct 02, 2018 6:39 pm
Forum: General Science Questions
Topic: Rusty on High School Chem [ENDORSED]
Replies: 113
Views: 36242

Re: Rusty on High School Chem [ENDORSED]

Hi everyone! I hadn't taken a chemistry course since my sophomore year in high school, and after the first lecture, I was a bit lost in Chem14A's content. However, I have found that using Dr. Lavelle's website (his audio/visual modules) is quite helpful in reviewing the material that I should've mas...
by Avery Zuelch 1D
Tue Oct 02, 2018 6:32 pm
Forum: SI Units, Unit Conversions
Topic: Formula Units: Molecules or Atoms
Replies: 5
Views: 91

Re: Formula Units: Molecules or Atoms

In the converting process, when/where do you use Avogadro's Number? I know the general steps in this process, but get quite confused when it is time to divide/multiple by it.
by Avery Zuelch 1D
Tue Oct 02, 2018 3:08 pm
Forum: Significant Figures
Topic: Rules For Significant Figures
Replies: 6
Views: 133

Re: Rules For Significant Figures

There was one thing that Dr. Lavelle mentioned in class that really helped me understand how to determine how many significant figures are present in a number. If you are unsure on the amount of significant figures in a number, convert the number into scientific notation. The number of didgets in th...

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