Search found 12 matches
- Fri Mar 17, 2017 4:38 pm
- Forum: *Cyclohexanes (Chair, Boat, Geometric Isomers)
- Topic: Steric vs. Torsional
- Replies: 1
- Views: 487
Re: Steric vs. Torsional
When rotating a molecule around a bond, the torsional strain is the repulsion caused by the electrons in between different groups when they pass by each other. Steric Strain is strain caused by the electrons in between different groups. Steric strain cannot be lessened by rotating the molecule aroun...
- Sun Mar 12, 2017 4:49 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Final Exam Details and Review Sessions Winter 2017
- Replies: 114
- Views: 27274
Re: Final Exam Details and Review Sessions Winter 2017
Will the TA's have example problems at the review sessions? Or will they be centered more around student questions?
- Fri Mar 03, 2017 10:09 am
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Intermediates in pre equilibrium
- Replies: 8
- Views: 2765
Re: Intermediates in pre equilibrium
I think the review session today is limited to the midterm and questions within that. But Do you know if there will be any review of the new organic material?
- Tue Feb 21, 2017 8:35 pm
- Forum: General Science Questions
- Topic: Significant Figures
- Replies: 1
- Views: 492
Significant Figures
When doing old quiz problems to practice, I noticed that significant figures were supposed to be done at the end rather than step by step. Should we do sig figs as we go at each step or just at the end?
- Fri Feb 17, 2017 10:24 am
- Forum: General Science Questions
- Topic: Sig Figs
- Replies: 5
- Views: 1839
Re: Sig Figs
In general, sig figs apply only within the numbers you use for your calculations.
- Sun Feb 12, 2017 11:13 am
- Forum: General Science Questions
- Topic: Sig Figs: Rounding Off
- Replies: 2
- Views: 692
Re: Sig Figs: Rounding Off
If there is a question with a number that has the least amount of significant figures and that value is not used when calculating for the answer, do we use those number of significant figures still or the number of significant digits from a number that is used when calculating that is the least?
- Sun Feb 05, 2017 10:45 am
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Midterm
- Replies: 4
- Views: 613
Midterm
Has it already been announced the topics that the midterm on week 6 will cover?
- Sun Feb 05, 2017 10:42 am
- Forum: Balancing Redox Reactions
- Topic: Pneumonic Device
- Replies: 2
- Views: 463
Re: Pneumonic Device
Thanks this was pretty helpful!
- Thu Jan 26, 2017 3:28 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Example of isolated System
- Replies: 4
- Views: 9075
Re: Example of isolated System
The entire universe is an isolated system which is why energy is conserved.
- Fri Jan 20, 2017 10:22 am
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: -q(Rxn)=q(cal)? [ENDORSED]
- Replies: 3
- Views: 978
Re: -q(Rxn)=q(cal)? [ENDORSED]
The bomb calorimeter is actually an isolated system which means that nothing can exchange with the surroundings.
- Wed Jan 11, 2017 10:07 pm
- Forum: Phase Changes & Related Calculations
- Topic: Sublimiation
- Replies: 6
- Views: 1433
Re: Sublimiation
If a vapor changes into a solid, this is known as deposition which is the opposite of sublimation.
- Wed Jan 11, 2017 10:03 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Standard Reaction Enthalpy of O2
- Replies: 2
- Views: 994
Re: Standard Reaction Enthalpy of O2
Standard Enthalpy of Formation for elements in their standard state is 0 and the standard state for Oxygen is O2 gas. The standard reaction enthalpy is sum of the products minus the sum of the reactants. So if you have just O2 then this is an element in its standard state which means that the Standa...