Search found 17 matches

by Jazmin_Morales_3J
Sat Mar 18, 2017 10:47 pm
Forum: *Alcohols
Topic: Hydroxy vs Alcohol?
Replies: 2
Views: 643

Hydroxy vs Alcohol?

Hello,

I was working on question 9B on the Winter 2015 final and they named the OH functional groups as hydroxy functional groups instead of alcohols? Can someone explain why this is and how we can tell the difference? Thanks!
by Jazmin_Morales_3J
Sun Mar 12, 2017 8:29 pm
Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
Topic: Winter 2013 Final Q3C
Replies: 2
Views: 343

Winter 2013 Final Q3C

Hey everyone,

Why is is that the Faraday constant is not included in the equation that the solution uses? Instead, they only use the n in the equation. Thanks!
by Jazmin_Morales_3J
Mon Mar 06, 2017 8:29 am
Forum: *Nucleophiles
Topic: Alkyl vs Aryl Carbanion
Replies: 2
Views: 541

Re: Alkyl vs Aryl Carbanion

Hi Sarahi, Aryl carbanions are aromatic (ring) compounds made of carbon that have lost a hydrogen and now contain a lone pair of electrons. They are sp2 hybridized. Alkyl carbanions are non aromatic, so the carbons are bonded in a chain, and the carbon has lost its bond with a hydrogen and now has a...
by Jazmin_Morales_3J
Sun Feb 26, 2017 5:36 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7582
Views: 1017183

Re: Post All Chemistry Jokes Here

I cringed so hard but here it is

If H20 is the formula for water, what is the formula for ice?

H20 cubed
by Jazmin_Morales_3J
Wed Feb 22, 2017 2:22 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Rate Determining Step
Replies: 3
Views: 386

Re: Rate Determining Step

Hi there,

Intermediates are not included in the overall rate law because intermediates are not final products. So because intermediates are not observable, they are not included in the rate law that is determined experimentally. Hope that helps!
by Jazmin_Morales_3J
Sun Feb 19, 2017 10:37 pm
Forum: Second Order Reactions
Topic: Homework Problem 15.19
Replies: 3
Views: 327

Homework Problem 15.19

Hi guys,

I was doing question 15.19 and I was having trouble finding the order of the reaction of B. According to the solutions manual, the reaction is second order in B, but I don't understand what steps they took to get that answer so any clarification would be much appreciated. Thanks!
by Jazmin_Morales_3J
Sun Feb 12, 2017 8:25 pm
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Midterm 2016, Question 2
Replies: 2
Views: 335

Midterm 2016, Question 2

Hello,

I was wondering why and how the temperature is converted from degrees celsius to K on question 2 from the 2016 midterm? I thought that you converted degrees celsius by adding 273 K to it, but the questions says that -70 degrees celsius is the same as -70 K..? Thanks!
by Jazmin_Morales_3J
Mon Jan 30, 2017 1:28 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 1 Preparation Answers
Replies: 130
Views: 13715

Re: Quiz 1 Preparation Answers

Can someone please explain why on #5 the answer has 2NH3 on the product side? When I did the question and canceled everything, I divided 2NH3 by 2 so that it would be the same as in the target equation N2H4 + H2 = NH3. This gave me an enthalpy of -105.1kJ/mol, instead of -151 kJ/mol. Thanks
by Jazmin_Morales_3J
Sun Jan 22, 2017 3:25 pm
Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
Topic: 8.31 Monatomic Gas
Replies: 1
Views: 202

8.31 Monatomic Gas

In the question, it mentions that Kr is a monatomic gas and I was wondering what exactly is a monatomic gas? I checked in the textbook and it mentions that the molar internal energy of a monatomic ideal gas is 3/2RT. Basically, I was wondering why the internal energy formula is different for a monat...
by Jazmin_Morales_3J
Wed Nov 16, 2016 8:57 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: Ligands and Coordination Numbers
Replies: 2
Views: 460

Re: Ligands and Coordination Numbers

Hi, I had a question that I thought would be relevant to this topic. I was simply wondering whether or not elements that are not contained within the brackets or are directly bonded to the transition metal (like ligands) could also be factored into the coordination number? Thanks!
by Jazmin_Morales_3J
Tue Nov 15, 2016 7:44 pm
Forum: Naming
Topic: Quizlet for the names of Common Ligands
Replies: 10
Views: 1129

Re: Quizlet for the names of Common Ligands

Wow this was really helpful! Thanks for making it!
by Jazmin_Morales_3J
Tue Nov 08, 2016 9:08 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: MO theory
Replies: 3
Views: 369

Re: MO theory

How is it possible to have bond orders of 1.5, 2.5, etc? Does it have anything to do with resonance structures?
by Jazmin_Morales_3J
Sat Oct 29, 2016 7:10 pm
Forum: Electron Configurations for Multi-Electron Atoms
Topic: Exceptions for Electron Configurations
Replies: 3
Views: 1867

Re: Exceptions for Electron Configurations

Hey Yuni, When referring to the ground state electron configuration of an atom, it simply means it is the electron configuration of an atom at its lowest energy level. In contrast, an atom in an excited state has absorbed additional energy. I have added a link below that might help you out a bit bet...
by Jazmin_Morales_3J
Sat Oct 22, 2016 9:23 pm
Forum: Electronegativity
Topic: Difference between electron affinity and electronegativity
Replies: 3
Views: 926

Re: Difference between electron affinity and electronegativity

Hey there, I just wanted to share this diagram with you because it really helped me memorize the trends of electron affinity and electronegativity on the periodic table. I hope it helps you put things into perspective! http://2012books.lardbucket.org/books/principles-of-general-chemistry-v1.0/sectio...
by Jazmin_Morales_3J
Mon Oct 10, 2016 9:37 pm
Forum: Significant Figures
Topic: All students read this sig fig post [ENDORSED]
Replies: 115
Views: 10330

Re: All students read this sig fig post [ENDORSED]

Ariana, I believe that only the final answer has to have the correct number of sig figs and you use exact calculations throughout the problem to make sure your answer is accurate, but anyone feel free to correct me if I'm wrong.
by Jazmin_Morales_3J
Mon Oct 10, 2016 9:23 pm
Forum: Bohr Frequency Condition, H-Atom , Atomic Spectroscopy
Topic: Quiz 1 Preparation: Fall 2014 Question #10 [ENDORSED]
Replies: 6
Views: 753

Re: Quiz 1 Preparation: Fall 2014 Question #10 [ENDORSED]

So, just to clarify, you got 7.55 x 10^-20 by using E=hv and plugging in the given frequency? Also, can you explain how canceling the negatives works out to n=6? Thanks!
by Jazmin_Morales_3J
Wed Sep 28, 2016 3:51 pm
Forum: Photoelectric Effect
Topic: Photoelectric effect pre-module assessment #17-19
Replies: 8
Views: 797

Re: Photoelectric effect pre-module assessment #17-19

Can you explain the concept behind #18? I thought that the work function was exactly the same as the threshold energy (energy needed to remove electrons) so I don't quite understand what is being done. Thanks

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