Search found 22 matches

by Jata_Kavya_3A
Sun Mar 12, 2017 4:28 pm
Forum: *Constitutional and Geometric Isomers (cis, Z and trans, E)
Topic: Preference in numbering
Replies: 10
Views: 3919

Re: Preference in numbering

Also, when naming cycloalkanes, the where the numbering on the double bond have to begin? The numbering has to encompass the both ends of the double bond next to each other right?
by Jata_Kavya_3A
Sun Mar 12, 2017 4:27 pm
Forum: *Constitutional and Geometric Isomers (cis, Z and trans, E)
Topic: Preference in numbering
Replies: 10
Views: 3919

Re: Preference in numbering

When looking at numbering, we try to prioritize lowest numbers over priority of substituents right?
For example, if we had the substituents of a methyl and propyl group on an alkane, and the starting with the methyl would get the lowest numbering, we would start with methyl right?
by Jata_Kavya_3A
Fri Mar 03, 2017 9:36 pm
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Catalyst
Replies: 16
Views: 1265

Re: Catalyst

So catalysts can be included in the rate law, but what about intermediates?
by Jata_Kavya_3A
Tue Feb 14, 2017 11:02 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Winter 2015 Midterm Question 2 and 3 D
Replies: 5
Views: 641

Re: Winter 2015 Midterm Question 2 and 3 D

for every question with bond enthalpies vs enthalpies of formation, will the question specify what they want?
by Jata_Kavya_3A
Sat Feb 04, 2017 5:45 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Chapter 8 Number 77
Replies: 2
Views: 280

Re: Chapter 8 Number 77

So basically any structure with resonance, has less enthalpy.
by Jata_Kavya_3A
Thu Feb 02, 2017 4:02 am
Forum: Administrative Questions and Class Announcements
Topic: Quiz 1 Preparation Answers
Replies: 130
Views: 13730

Re: Quiz 1 Preparation Answers

When delta H is positive and delta S is negative, there is no way for there to be spontaneity at any temperature. This is is because entropy of the system is decreasing, and the enthalpy of heat is increasing. naturally, this would never occur in the real world. If it was vice versa, a positive Delt...
by Jata_Kavya_3A
Thu Jan 26, 2017 9:44 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Units of Reaction Enthalpies
Replies: 11
Views: 1437

Re: Units of Reaction Enthalpies

So basically to summarize:

q is generally in kJ
Delta H usually in kJ
Standard enthalpy of formation is only kJ/mol
by Jata_Kavya_3A
Thu Jan 19, 2017 1:32 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: HW 8.13 & Heat Absorption
Replies: 2
Views: 298

Re: HW 8.13 & Heat Absorption

if the system is losing heat, then the internal energy of the system decreases because q is negative. Vice versa, if the system absorbs or gains heat.
by Jata_Kavya_3A
Sun Jan 15, 2017 10:01 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Units of Reaction Enthalpies
Replies: 11
Views: 1437

Re: Units of Reaction Enthalpies

The units used are dependent on the situation. Typically, it is given in kj/mol unless otherwise stated.
by Jata_Kavya_3A
Wed Nov 30, 2016 6:14 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: What is MO theory for? [ENDORSED]
Replies: 20
Views: 6766

Re: What is MO theory for? [ENDORSED]

When we are determining whether to use the z>8 or z<8 diagram for a molecule, which atom do we look at? Like for example for, NO, do we look at the z for nitrogen or oxygen ?
by Jata_Kavya_3A
Wed Nov 30, 2016 6:11 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1019761

Re: Post All Chemistry Jokes Here

How do you feel after that O chem exam?

I'm DIEN!
by Jata_Kavya_3A
Wed Nov 30, 2016 6:09 pm
Forum: Properties & Structures of Inorganic & Organic Acids
Topic: Oxoacids
Replies: 2
Views: 342

Re: Oxoacids

What are the strongest vs weakest oxyacids?
by Jata_Kavya_3A
Tue Nov 29, 2016 4:53 pm
Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
Topic: Identifying a strong acid
Replies: 6
Views: 1071

Re: Identifying a strong acid

How can we immediately recognize if its a strong acid or weak acid, without memorizing them?
by Jata_Kavya_3A
Mon Nov 28, 2016 10:08 pm
Forum: *Making Buffers & Calculating Buffer pH (Henderson-Hasselbalch Equation)
Topic: Henderson Hasselbalch Equation [ENDORSED]
Replies: 4
Views: 797

Re: Henderson Hasselbalch Equation [ENDORSED]

Why can you not perform a titration on a weak acid and weak base? Why does one or the other have to be strong?
by Jata_Kavya_3A
Thu Nov 17, 2016 9:46 pm
Forum: Applying Le Chatelier's Principle to Changes in Chemical & Physical Conditions
Topic: Difference between Pressure and compression/expansion?
Replies: 5
Views: 2129

Re: Difference between Pressure and compression/expansion?

How does expansion/compression affect which way the equilibrium shifts? like what is the relationship
by Jata_Kavya_3A
Sat Nov 12, 2016 5:57 pm
Forum: Shape, Structure, Coordination Number, Ligands
Topic: What is a Ligand?
Replies: 3
Views: 797

Re: What is a Ligand?

Can ligands be single atoms or do they have to be molecules? also, what are commonly used ligands?
by Jata_Kavya_3A
Sat Nov 05, 2016 6:10 pm
Forum: *Molecular Orbital Theory (Bond Order, Diamagnetism, Paramagnetism)
Topic: What is MO theory for? [ENDORSED]
Replies: 20
Views: 6766

Re: What is MO theory for? [ENDORSED]

How do we find bond order from a molecular orbital diagram?
by Jata_Kavya_3A
Fri Oct 28, 2016 9:51 pm
Forum: Sigma & Pi Bonds
Topic: Quiz 2 Preparation [ENDORSED]
Replies: 8
Views: 2887

Re: Quiz 2 Preparation [ENDORSED]

For every metal that can have multiple valence electrons, will we be given the number of valence electron it has? for example alminium (III) oxide, will we get the III?
by Jata_Kavya_3A
Tue Oct 18, 2016 9:59 am
Forum: Trends in The Periodic Table
Topic: Electron Affinity [ENDORSED]
Replies: 3
Views: 499

Re: Electron Affinity [ENDORSED]

you can also think of electron affinity as an atom's tendency or natural ability for wanting electrons. An atom with a stronger electron affinity is one that would be more likely to take an electron to complete a sub shell.
by Jata_Kavya_3A
Fri Sep 30, 2016 8:52 pm
Forum: Photoelectric Effect
Topic: Photoelectric effect
Replies: 2
Views: 303

Re: Photoelectric effect

It is based on the equation , E(photon) = threshold energy + E(excess). If energy required to remove the electron is equal to the energy of the photon, then you will not have any excess kinetic energy.

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