I'm aldehyde, I am going to try and hide myself within the middle of the carbon chain......."-al"
This joke is an onomatopoeia, a pun, AND a helpful pneumonic for remembering ether functional group. Chose ether one to focus on.
Search found 25 matches
- Mon Mar 13, 2017 11:02 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 2758292
- Sat Mar 11, 2017 3:31 pm
- Forum: *Haloalkanes
- Topic: Functional Groups [ENDORSED]
- Replies: 7
- Views: 2795
Re: Functional Groups [ENDORSED]
Are we expected to be able to name compounds with multiple functional groups?
- Tue Mar 07, 2017 7:58 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 2758292
Re: Post All Chemistry Jokes Here
Why did the bacterium die?
It was invaded by a retro- isopropyl-hexane!!!!!!!!!
It was invaded by a retro- isopropyl-hexane!!!!!!!!!
- Wed Mar 01, 2017 12:21 pm
- Forum: *Electrophiles
- Topic: Electrophile Vs. Nucleophile
- Replies: 3
- Views: 884
Re: Electrophile Vs. Nucleophile
Do lewis acids ALWAYS correspond to electrophiles, and lewis bases with nucleophiles? Is it that clear cut and determinable?
- Tue Feb 21, 2017 9:36 am
- Forum: General Rate Laws
- Topic: Units of K
- Replies: 4
- Views: 26801
Re: Units of K
K(units) = (L/mol)^(overall n -1) x s^-1
- Mon Feb 13, 2017 7:33 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: K
- Replies: 1
- Views: 482
K
Thermodynamically-speaking does K, in addition to being the equilibrium constant, indicate standard conditions?
- Sat Feb 11, 2017 12:39 pm
- Forum: Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy
- Topic: Midterm Winter 2013 problem 5B
- Replies: 10
- Views: 1750
Re: Midterm Winter 2013 problem 5B
If CF4 is symmetric then why would it be ranked the highest for molar entropy? Shouldn't it be ranked the lowest?
- Thu Feb 09, 2017 9:44 pm
- Forum: Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy
- Topic: Midterm Winter 2013 problem 5B
- Replies: 10
- Views: 1750
Midterm Winter 2013 problem 5B
We are supposed to rank CHF3, CF4, CH3F, and CH2F2 in order of increasing standard molar entropy.
The answer is CH3F<CH2F2<CHF3<CF4.
Why wouldn't it be CF4<CH3F<CHF3<CH2F2?
Thank you.
The answer is CH3F<CH2F2<CHF3<CF4.
Why wouldn't it be CF4<CH3F<CHF3<CH2F2?
Thank you.
- Wed Feb 01, 2017 2:32 pm
- Forum: Balancing Redox Reactions
- Topic: Pneumonic Device
- Replies: 2
- Views: 841
Pneumonic Device
Here is a useful pneumonic device to help you associate reduction with gaining electrons and oxidation with losing electrons:
Reduction--> reducing (positive) charge (therefore e-s must be gained in the process)
Therefore, Oxidation--> loses e-s (by process of elimination)
Reduction--> reducing (positive) charge (therefore e-s must be gained in the process)
Therefore, Oxidation--> loses e-s (by process of elimination)
- Fri Jan 27, 2017 9:14 am
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: Change in the entropy of the universe
- Replies: 1
- Views: 504
Change in the entropy of the universe
For dStotal = dSsys + dSsurr what conditions make dStotal = to 0?
- Fri Jan 20, 2017 9:35 am
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Scaling Enthalpy
- Replies: 1
- Views: 484
Scaling Enthalpy
For a reaction A + B -> C + 2D with all gases, and the dH of the reaction is, say, 100kj, would the following parameters be scaled with x amount of A?:
(1) the dH (would it be xdH for that amount reacted)?
(2) the dn (would the net change in moles of gas be scaled)?
(1) the dH (would it be xdH for that amount reacted)?
(2) the dn (would the net change in moles of gas be scaled)?
- Fri Jan 13, 2017 7:51 am
- Forum: Phase Changes & Related Calculations
- Topic: The Heating Curve Graphical Comparisons of C
- Replies: 1
- Views: 420
The Heating Curve Graphical Comparisons of C
On the heating curve, when the enthalpy increase (q at constant pressure) increases the temperature (and we have a diagonal line with a positive slope) there is something very useful for which to take note: The lower the C (heat capacity) of the substance in a given phase, the steeper (more positive...
- Tue Nov 29, 2016 5:43 pm
- Forum: Conjugate Acids & Bases
- Topic: Are names provided? [ENDORSED]
- Replies: 1
- Views: 592
Are names provided? [ENDORSED]
Will we be provided with all of the names of the compounds or do we have to memorize them? And if so which ones?
- Tue Nov 22, 2016 10:11 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 2758292
Acids and Bases joke
Before this class I always presumed that determining the relative strength of acids and bases would be challenging. Turns out learning about NaOH, for example, is pretty basic.
- Tue Nov 15, 2016 10:00 am
- Forum: Naming
- Topic: Ordering ligands within a complex (not naming!)
- Replies: 1
- Views: 451
Re: Ordering ligands within a complex (not naming!)
Also how would polydentates like C2O4^2- (often written as ox) affect this?
- Tue Nov 15, 2016 9:28 am
- Forum: Naming
- Topic: Ordering ligands within a complex (not naming!)
- Replies: 1
- Views: 451
Ordering ligands within a complex (not naming!)
For actually writing the formula with brackets (not giving the long name) what would be the order? WHAT IS THE RULE FOR ORDERING THE LIGANDS? - Are the ligands placed in alphabetical order ACCORDING TO THEIR NAME (even though we're writing the symbols)? For example, for Diamminetetrahydroxochromate(...
- Mon Nov 07, 2016 10:23 am
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Ligand formation
- Replies: 1
- Views: 397
Ligand formation
Is it vital that we know how to determine how many ligands a TM cation can form? Is there even a way to deduce this?
- Mon Oct 31, 2016 1:24 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: D-block exceptions for midterm and f-block
- Replies: 4
- Views: 1137
D-block exceptions for midterm and f-block
I have found a total of 10 atoms located in the d-block (two of them being chromium and copper), do we have to know all 10 exceptions for the midterm? (what about the final?) Also, are we going to be asked to draw the electron configurations for f-block elements?
- Mon Oct 31, 2016 1:18 pm
- Forum: Balancing Chemical Reactions
- Topic: Chemical Equations and Molecular Phases
- Replies: 1
- Views: 715
Chemical Equations and Molecular Phases
When we are told to balance a chemical equation (and are asked to include the phases of the atoms and molecules) how can we determine which phases to use?
- Mon Oct 24, 2016 4:02 pm
- Forum: Bond Lengths & Energies
- Topic: Bond Order
- Replies: 2
- Views: 605
Bond Order
I noticed that bond order was one of the topics covered on past midterms; where is that in the book? One would expect that to be located in near the end of CH3 which covers the specifics on bond lengths and energies. Am I just crazy?
- Wed Oct 19, 2016 11:36 am
- Forum: Quantum Numbers and The H-Atom
- Topic: Quantum numbers trick with angular momentum quantum number [ENDORSED]
- Replies: 1
- Views: 815
Quantum numbers trick with angular momentum quantum number [ENDORSED]
Its true that the number of orbitals which belong to a specific sub shell is specific to which "l" you are referring. For instance, the s-subshell has 1 orbital, the p has 3, the d has 5, and the f has 7. Using rate of increase (2 orbitals/change in l) and the initial value (1 orbital) you...
- Sun Oct 16, 2016 11:40 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 2758292
Re: Post All Chemistry Jokes Here
I can't wait until we are finished with our chemistry final- then we Argon.
Which element is the most medicinal?
-Curium
Which element is the most medicinal?
-Curium
- Tue Oct 11, 2016 10:21 pm
- Forum: Electron Configurations for Multi-Electron Atoms
- Topic: Exceptions
- Replies: 1
- Views: 473
Exceptions
Dr. Lavelle mentioned that copper and chromium are exceptions to the rule for writing electron configurations of atoms; wouldn't that mean that all of the atoms within both of the groups in which copper and chromium belong?
- Thu Oct 06, 2016 4:33 pm
- Forum: Heisenberg Indeterminacy (Uncertainty) Equation
- Topic: wave functions and the heisenburg uncertainty [ENDORSED]
- Replies: 1
- Views: 476
wave functions and the heisenburg uncertainty [ENDORSED]
If (Psi)^2 that represents the probability of finding an electron, how does the Heisenburg equation relate to that?
- Mon Sep 26, 2016 11:16 pm
- Forum: Balancing Chemical Reactions
- Topic: Balancing a chemical equation with multiple compounds
- Replies: 1
- Views: 895
Balancing a chemical equation with multiple compounds
Here is a long and complicated trick I can up with balance a complex chemical equation: 1) Find an atom this is only contained in one reactant and in one product. For which ever molecule contains more of that atom, assign a coefficient of "X" and scale the the molecules' coefficient (with ...