Search found 21 matches

by Nick_Ida 1D
Mon Mar 13, 2017 4:55 pm
Forum: *Cyclohexanes (Chair, Boat, Geometric Isomers)
Topic: Stability and Breaking of Bonds
Replies: 1
Views: 319

Stability and Breaking of Bonds

So we have learned that cyclohexanes are the most stable forms of "cyclo-" molecules out there because of there bond angles being 109.5 so there is little strain on the bond angles themselves. Can someone describe to me a real-life example on how we may be able to break long chains of cycl...
by Nick_Ida 1D
Tue Mar 07, 2017 6:51 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1017316

Re: Post All Chemistry Jokes Here

What did the bartender say when Oxygen, Hydrogen, Sulfur, Sodium, and Phosphorous walked into his bar?
OH SNaP!
by Nick_Ida 1D
Thu Mar 02, 2017 10:28 am
Forum: *Alkanes
Topic: Alphabetical Naming Order After Lowest Carbon?
Replies: 1
Views: 256

Alphabetical Naming Order After Lowest Carbon?

I am I correct in that when naming based on the IUPAC scheme, we take priority of the lowest number C bonded to the hydrocarbon groups and then after that (if the molecule is identical forward and reverse) we utilize the alphabetical order of the alkanes (ethyl take priority over methyl)? Or does th...
by Nick_Ida 1D
Thu Mar 02, 2017 10:26 am
Forum: *Alkanes
Topic: Naming with dimethyl groups
Replies: 1
Views: 292

Naming with dimethyl groups

Dr. Lavelle used the example of 4 ethyl-2,2-dimethyl hexane in-class yesterday and I was wondering in a hypothetical scenario if we had 1 ethyl group (bonded at the 4th carbon atom) and 2 methyl groups bonded to hexane: 1 methyl group bonded to the 2nd carbon atom and another at the 3rd, how would w...
by Nick_Ida 1D
Tue Feb 21, 2017 9:18 pm
Forum: Method of Initial Rates (To Determine n and k)
Topic: Order of Reactions and its Units
Replies: 1
Views: 334

Order of Reactions and its Units

Can someone please describe to me how the units of each order of reaction differ, particular "k"'s units? Does it come from the derivation of the formula itself or is it dependent on the units of the concentration/pressure of the products and reactants in the equation? Any input would help...
by Nick_Ida 1D
Thu Feb 16, 2017 5:38 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1017316

Re: Post All Chemistry Jokes Here

What fruit contains Barium and double Sodium?
BaNaNa's! :D
by Nick_Ida 1D
Mon Feb 06, 2017 7:58 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1017316

Re: Post All Chemistry Jokes Here

What do you get when you cross two hydrogen buffalo and a oxygen buffalo?
-A water buffalo
by Nick_Ida 1D
Tue Jan 31, 2017 2:18 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Necessity for a Salt Bridge
Replies: 1
Views: 305

Necessity for a Salt Bridge

In lecture, we learned about the model of a cathode-anode circuit, with electrons transferring from anode to the cathode. My question is how do we connect the circuit in order for it to be in a proper electrical loop. Why is it necessary to have a salt bridge with an aqueous substance like NaCl?
by Nick_Ida 1D
Mon Jan 23, 2017 10:10 am
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Collisions of Particles
Replies: 1
Views: 280

Collisions of Particles

In the textbook, they described a transfer of energy from a particle of higher energy to one of lower energy upon collision when they are in an isolated container. Is this an example that can connect to thermal energy in that one substance of warmer temperature(i.e-coffee, water, etc) exchanges ener...
by Nick_Ida 1D
Mon Jan 16, 2017 11:47 pm
Forum: Phase Changes & Related Calculations
Topic: Boiling Points at Altitude [ENDORSED]
Replies: 2
Views: 339

Boiling Points at Altitude [ENDORSED]

Hi there! I just was wondering about how altitude affects water's boiling points. I don't quite remember is it water's boiling point is lower at altitude? If so, why is that?
by Nick_Ida 1D
Wed Jan 11, 2017 5:33 pm
Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
Topic: 8.3 Expansion Work Help? [ENDORSED]
Replies: 1
Views: 289

8.3 Expansion Work Help? [ENDORSED]

When I was reading Chapter 8, the book describes this idea of an "irreversible process" of pressure and how pressure cannot reverse a piston in a container. I am not quite sure what they are describing when they say "an infinitesimal change in external pressure does not reverse the di...
by Nick_Ida 1D
Mon Jan 09, 2017 4:14 pm
Forum: Phase Changes & Related Calculations
Topic: Burns Worse from Steam Than Water Example
Replies: 2
Views: 450

Burns Worse from Steam Than Water Example

When we talked about how steam burns can be significantly worse than water burns at similar temperatures (Ex: 100 degrees Celsius), I was slightly confused on the math of the equation. Is the calculation for the steam burn a combination of both the heat change from the 100 degrees celsius to approxi...
by Nick_Ida 1D
Sun Dec 04, 2016 11:46 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1017316

Re: Post All Chemistry Jokes Here

What kind of fish is made of 2 NA atoms?
A two-NA ;)
by Nick_Ida 1D
Mon Nov 28, 2016 10:26 am
Forum: Polyprotic Acids & Bases
Topic: Ka1 vs Ka2 vs Ka3
Replies: 2
Views: 1684

Ka1 vs Ka2 vs Ka3

Can someone please explain why as the Ka's increase in subscript, the attraction between opposite charges decrease? Is it because it is harder to separate the cation with the anion? I would love to know.
by Nick_Ida 1D
Mon Nov 21, 2016 5:19 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1017316

Re: Post All Chemistry Jokes Here

What's 007's Eskimo cousin's name?
Polar Bond :D
by Nick_Ida 1D
Sun Nov 20, 2016 10:31 am
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: Ions and Molecular Orbital Theory
Replies: 1
Views: 232

Ions and Molecular Orbital Theory

When we are given a negatively charged ion like O2- or BO-, where are we expected to put the extra valence electron? Is it on the more electronegative atom? And in the case of O2-, does it matter where we put it in the 2p orbital of the molecular orbital diagram?
by Nick_Ida 1D
Mon Nov 07, 2016 1:57 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: The Difference Between Sigma and Sigma* Levels
Replies: 1
Views: 312

The Difference Between Sigma and Sigma* Levels

Can someone tell me for molecular orbital theory why the sigma and sigma* or pi and pi* have different energy levels? Why would the anti-bonding orbital have more energy than the bonding orbital? Is because having a full orbital decreases its energy?
by Nick_Ida 1D
Sat Oct 29, 2016 8:53 pm
Forum: Quantum Numbers and The H-Atom
Topic: Group 11 Metals Quantum Numbers
Replies: 1
Views: 324

Group 11 Metals Quantum Numbers

On our laminated periodic table, the group 11 metals (Cu, Ag, Au) all have an electron taken out of their s-orbital rather than their d-orbital for the electron configurations in their given spaces i.e-Cu: [Ar]3d10,5s1 Can anyone explain why it is noted the way it is? Also if I were to say for Cu, [...
by Nick_Ida 1D
Sun Oct 23, 2016 2:28 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: What is an ns-orbital?
Replies: 1
Views: 1054

What is an ns-orbital?

In Chapter 2, the textbook defines an "ns-orbital" as "each shell has one-orbital, and the s-orbital in the shell with quantum number n." Are they referring to the donut-like shape of the s-orbital like Dr. Lavelle showed us in-class (aka the diagrams) for each n quantum number?
by Nick_Ida 1D
Sun Oct 16, 2016 4:19 pm
Forum: Trends in The Periodic Table
Topic: Atomic Radius [ENDORSED]
Replies: 1
Views: 334

Atomic Radius [ENDORSED]

If the trend for atomic radii is shifting to right of a period and up a column to make it smaller, if we have two elements (such as Li and F) on the same periods, both with different atomic radii and orbitals pertaining to them, can we assume that the different energy levels of the orbitals affect t...
by Nick_Ida 1D
Wed Oct 05, 2016 3:22 pm
Forum: Wave Functions and s-, p-, d-, f- Orbitals
Topic: Wave Function
Replies: 1
Views: 217

Wave Function

In the Lecture today (10/5), Dr. Lavelle talked about waves being described as taking on the form of sin- and cos- functions. Now when we graph sin- and cos-, they're usually on a two 2-dimensional graph with and the x and y axis. Are we assuming that the functions become 3-dimensional, or adding a ...

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