Search found 15 matches
- Sun Mar 06, 2016 11:57 pm
- Forum: *Cycloalkanes
- Topic: 2 Cylcoalkanes attached to each other
- Replies: 1
- Views: 564
2 Cylcoalkanes attached to each other
If 2 cycloalkanes are attached to each other, can you name it as if its one big chain? For example, if you have 2 cyclopropane rings attached, can you consider it one big hexane molecule?
Suffixes
Can someone brief me on what the suffixes ane, ene, yne, and ol mean?
- Thu Feb 18, 2016 8:45 pm
- Forum: General Rate Laws
- Topic: "a"
- Replies: 2
- Views: 605
"a"
I don't understand what "a" represents in the rate laws. How do I determine whether a reaction is first or second or third order?
- Tue Feb 09, 2016 12:32 am
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: Example 14.8 in the chapter
- Replies: 1
- Views: 463
Example 14.8 in the chapter
Why is it that although we've reversed one of the half reactions, we keep the same sign of that reaction's E when we plug it into the standard E equation? Is that an error in the example?
- Thu Jan 28, 2016 3:31 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: 8.67 Inquiry
- Replies: 1
- Views: 388
8.67 Inquiry
For part b, the solutions manual uses the equation C + 2H₂ +(1/2)O₂ = CH 3 OH and their calculated reaction enthalpy is -222 kj mol -1 , which I understand. However, why can't I use the equation: CO +2H₂ = CH 3 OH ? I get a different reaction enthalpy altogether by using the following bond enthalpy...
- Thu Jan 21, 2016 11:43 pm
- Forum: Phase Changes & Related Calculations
- Topic: Delta H Nought vs Delta H
- Replies: 3
- Views: 1925
Re: Delta H Nought vs Delta H
Delta H represents any change in enthalpy. Delta H nought specifically represents the standard change in enthalpy, meaning the change in enthalpy involved an equation under standard conditions. Standard conditions meaning the reactants and products are all in their standard physical and chemical sta...
- Thu Jan 14, 2016 3:26 am
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Work
- Replies: 4
- Views: 1005
Re: Work
The negative sign is there to signify that the system has lost energy, because it has to expend work to push against the external pressure on the system.
- Thu Jan 07, 2016 7:05 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Lowest Energy State of an Element
- Replies: 1
- Views: 460
Re: Lowest Energy State of an Element
An element is in its lowest energy state, otherwise known as its "ground state" if its configuration matches its ground-state electron configuration, which would just be the electron configuration of its placement on the periodic table, meaning that element is not an ion. Since it is not a...
- Sun Nov 29, 2015 11:13 pm
- Forum: Limiting Reactant Calculations
- Topic: Video: Fall 2013 Final Question 1
- Replies: 4
- Views: 908
Re: Fall 2013 Final Question 1 Video Submission
Lovelyn Edillo 4F
- Sun Nov 29, 2015 10:53 pm
- Forum: Limiting Reactant Calculations
- Topic: Video: Fall 2013 Final Question 1
- Replies: 4
- Views: 908
Video: Fall 2013 Final Question 1
Students involved:
Satyam Kotecha
Lovelyn Edillo
Anthony Chen
Satyam Kotecha
Lovelyn Edillo
Anthony Chen
- Sun Nov 15, 2015 8:19 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Polydentate Ions
- Replies: 1
- Views: 375
Polydentate Ions
How do I identify the number of dentates? Are they unpaired lone pairs on binding atoms?
- Sun Nov 08, 2015 11:53 pm
- Forum: Shape, Structure, Coordination Number, Ligands
- Topic: Naming
- Replies: 2
- Views: 625
Naming
Does it matter in which order you put the name when writing the molecule out?
- Sun Oct 25, 2015 8:43 pm
- Forum: Resonance Structures
- Topic: Expanded Octets
- Replies: 1
- Views: 711
Expanded Octets
How come only the elements in the third period and under are eligible for expanded octets? Please give more detail rather than just explaining those elements involve the d orbital because that doesn't make it any clearer for me. Sorry! But thank you!
- Sun Oct 11, 2015 10:58 pm
- Forum: Properties of Electrons
- Topic: Nodal Planes
- Replies: 1
- Views: 514
Nodal Planes
I know that there is 0% chance of finding an electron in a nodal plane, but does the presence of nodal planes affect the probability of finding an electron otherwise?
- Sun Oct 04, 2015 11:07 pm
- Forum: Properties of Light
- Topic: Spectral Lines
- Replies: 1
- Views: 512
Re: Spectral Lines
The emission spectrum demonstrates the wavelengths of light the electron emits, whereas the absorption spectrum demonstrates the wavelengths the electron absorbs. By this logic, the absorption spectrum is the inverse of the emission spectrum. Specifically, whatever lines shown in a specific electron...