Search found 20 matches
- Wed Mar 09, 2016 8:03 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3592122
Re: Chemistry Jokes
Free radicals have revolutionized chemistry.
- Tue Mar 01, 2016 9:59 pm
- Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
- Topic: Butane Newman Projection
- Replies: 3
- Views: 1098
Re: Butane Newman Projection
will these be relevant for this quarters quiz 3?
- Tue Feb 23, 2016 10:16 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3592122
Re: Chemistry Jokes
Organic chemistry is difficult. Those who study it have alkynes of trouble.
- Wed Feb 17, 2016 5:23 pm
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Quiz 2 - Chain reactions and Steady State
- Replies: 1
- Views: 479
Quiz 2 - Chain reactions and Steady State
Will chain reactions and steady state approximations be on the second quiz? I don't believe they were covered during lecture.
- Tue Feb 09, 2016 9:01 pm
- Forum: Interesting Applications: Rechargeable Batteries (Cell Phones, Notebooks, Cars), Fuel Cells (Space Shuttle), Photovoltaic Cells (Solar Panels), Electrolysis, Rust
- Topic: Electrolysis Concentration
- Replies: 2
- Views: 648
Re: Electrolysis Concentration
will be this be on the midterm?
- Sun Feb 07, 2016 1:09 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Homework 14.11 D
- Replies: 1
- Views: 433
Re: Homework 14.11 D
someone please answer this I don't understand either
- Wed Feb 03, 2016 9:09 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: Calculating Concentrations in Concentration cells
- Replies: 1
- Views: 444
Re: Calculating Concentrations in Concentration cells
depends if the ion is a cation or anion and is supposed to be oxidized
- Tue Jan 26, 2016 4:07 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: When are delta G and delta S zero?
- Replies: 2
- Views: 1062
Re: When are delta G and delta S zero?
The problem asks which of the following are not equal to 0, so why is the dS of the surroundings not equal to 0 also?
- Mon Jan 18, 2016 10:25 pm
- Forum: Environment, Fossil Fuels, Alternative Fuels
- Topic: Why energy crisis?
- Replies: 8
- Views: 4435
Re: Why energy crisis?
this was such an interesting helpful question
- Wed Jan 13, 2016 7:39 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Why is the melting of helium not endothermic?
- Replies: 2
- Views: 902
Re: Why is the melting of helium not endothermic?
basically because it only takes energy (is endothermic) when you're trying to put something in a less stable state.
- Wed Jan 06, 2016 10:07 pm
- Forum: Phase Changes & Related Calculations
- Topic: Explaining kJ/mol
- Replies: 3
- Views: 1490
Re: Explaining kJ/mol
kJ/mol is how many kJ needed for one mol of a substance to absorb/release in order for the entire mol to have all its bonds broken or formed. Ex: if it takes 100 kJ to break all the bonds in 2 mols of substance A-B, then then enthalpy change would be +50kJ/mol.
- Tue Dec 01, 2015 10:02 pm
- Forum: Industrial Examples
- Topic: Strings in Nanotechnology
- Replies: 3
- Views: 3192
Re: Strings in Nanotechnology
Will their be other examples of industrial uses of coordination compounds on the final?
- Mon Nov 23, 2015 6:34 pm
- Forum: Biological Examples
- Topic: Video: Hemoglobin and Myoglobin in the Body
- Replies: 1
- Views: 717
Video: Hemoglobin and Myoglobin in the Body
Video explaining the biological function of coordination compounds hemoglobin and myoglobin
- Sun Nov 22, 2015 2:40 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Videos Submissions
- Replies: 8
- Views: 12132
Re: Videos Submissions
if we post a video how difficultly will it be graded? Do most videos receive a 10/10 or is it a partial credit situation?
- Tue Nov 10, 2015 10:09 pm
- Forum: Non-Equilibrium Conditions & The Reaction Quotient
- Topic: Gas # of Moles, Increase the pressure
- Replies: 3
- Views: 991
Gas # of Moles, Increase the pressure
I dont understand why if you increase the pressure on a system of gasses, the reaction does move towards the end that has a lesser number of gas mols. It seems that it would make more sense for a higher pressure to change the K value so that the gasses take up "less space"
- Mon Nov 02, 2015 8:12 pm
- Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
- Topic: Determining which of these molecules are diamagnetic.
- Replies: 3
- Views: 9128
Re: Determining which of these molecules are diamagnetic.
also if the atoms have a Z value less than 8 that they will most likely have a different para/dia value than another pair of atoms w the same number of valence electrons with a Z value greater than 8. This is because the sigma bonds are of a higher E level in atoms with Z value less than 8
- Tue Oct 27, 2015 8:31 pm
- Forum: Hybridization
- Topic: Hybridization with d-orbitals
- Replies: 2
- Views: 651
Re: Hybridization with d-orbitals
lavelle writes his with the d at the end
- Mon Oct 19, 2015 8:01 pm
- Forum: Lewis Structures
- Topic: Lewis Dot Structure model
- Replies: 4
- Views: 766
Re: Lewis Dot Structure model
as long as you try and keep formal charges to a minimum you should be fine
- Mon Oct 12, 2015 5:30 pm
- Forum: Empirical & Molecular Formulas
- Topic: Hydrocarbons in Combustion
- Replies: 5
- Views: 1174
Re: Hydrocarbons in Combustion
so does this mean if we are only given the mass of CO2 and H20 and told they are the products, are we to assume that the initial reactants were only CH and O2?
- Sun Oct 04, 2015 9:38 pm
- Forum: Trends in The Periodic Table
- Topic: Do we need to memorize the periodic table?
- Replies: 4
- Views: 1545
Re: Do we need to memorize the periodic table?
Memorizing the periodic table will be a waste of your time however if you remember the weights and numbers of C, N, Ca, O, Cl, Na, and H then you will save yourself a good amount of time. Otherwise don't worry too much about it.