Search found 20 matches

by emily c
Wed Mar 09, 2016 8:03 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8017
Views: 1402132

Re: Chemistry Jokes

Free radicals have revolutionized chemistry.
by emily c
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: 787

Re: Butane Newman Projection

will these be relevant for this quarters quiz 3?
by emily c
Tue Feb 23, 2016 10:16 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 8017
Views: 1402132

Re: Chemistry Jokes

Organic chemistry is difficult. Those who study it have alkynes of trouble.
by emily c
Wed Feb 17, 2016 5:23 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Quiz 2 - Chain reactions and Steady State
Replies: 1
Views: 328

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.
by emily c
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: 289

Re: Homework 14.11 D

someone please answer this I don't understand either
by emily c
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: 816

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?
by emily c
Mon Jan 18, 2016 10:25 pm
Forum: Environment, Fossil Fuels, Alternative Fuels
Topic: Why energy crisis?
Replies: 8
Views: 2946

Re: Why energy crisis?

this was such an interesting helpful question
by emily c
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: 581

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.
by emily c
Wed Jan 06, 2016 10:07 pm
Forum: Phase Changes & Related Calculations
Topic: Explaining kJ/mol
Replies: 3
Views: 695

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.
by emily c
Tue Dec 01, 2015 10:02 pm
Forum: Industrial Examples
Topic: Strings in Nanotechnology
Replies: 3
Views: 2418

Re: Strings in Nanotechnology

Will their be other examples of industrial uses of coordination compounds on the final?
by emily c
Mon Nov 23, 2015 6:34 pm
Forum: Biological Examples
Topic: Video: Hemoglobin and Myoglobin in the Body
Replies: 1
Views: 528

Video: Hemoglobin and Myoglobin in the Body

Video explaining the biological function of coordination compounds hemoglobin and myoglobin
by emily c
Sun Nov 22, 2015 2:40 pm
Forum: Administrative Questions and Class Announcements
Topic: Videos Submissions
Replies: 8
Views: 11643

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?
by emily c
Tue Nov 10, 2015 10:09 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Gas # of Moles, Increase the pressure
Replies: 3
Views: 663

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"
by emily c
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: 7971

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
by emily c
Tue Oct 27, 2015 8:31 pm
Forum: Hybridization
Topic: Hybridization with d-orbitals
Replies: 2
Views: 495

Re: Hybridization with d-orbitals

lavelle writes his with the d at the end
by emily c
Mon Oct 19, 2015 8:01 pm
Forum: Lewis Structures
Topic: Lewis Dot Structure model
Replies: 4
Views: 472

Re: Lewis Dot Structure model

as long as you try and keep formal charges to a minimum you should be fine
by emily c
Mon Oct 12, 2015 5:30 pm
Forum: Empirical & Molecular Formulas
Topic: Hydrocarbons in Combustion
Replies: 5
Views: 836

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?
by emily c
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: 921

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.

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