Search found 19 matches
- Mon Mar 07, 2016 9:37 pm
- Forum: *Haloalkanes
- Topic: Line Structures for Haloalkanes
- Replies: 1
- Views: 732
Line Structures for Haloalkanes
When drawing the line structures for haloalkanes, do we draw a bond attaching the halogen atom to the carbon atom or do we just write it next to the carbon?
- Mon Feb 29, 2016 5:08 pm
- Forum: *Constitutional and Geometric Isomers (cis, Z and trans, E)
- Topic: Constitutional vs. Geometrical Isomers
- Replies: 2
- Views: 436
Constitutional vs. Geometrical Isomers
What is the difference between constitutional and geometrical isomers?
- Mon Feb 22, 2016 11:51 pm
- Forum: First Order Reactions
- Topic: Elementary Reactions
- Replies: 1
- Views: 337
Elementary Reactions
Are elementary reactions the overall reaction that is made up of different steps or are they the actual steps themselves?
- Tue Feb 16, 2016 10:14 am
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Settin Up An Overall Rate Law
- Replies: 1
- Views: 444
Settin Up An Overall Rate Law
When eliminating an intermediate from an overall rate law, do we always subtract the rate laws to set up the net rate?
- Tue Feb 09, 2016 9:58 am
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: Favorable vs. Spontaneous
- Replies: 2
- Views: 1378
Re: Favorable vs. Spontaneous
Yes, both 
and 
must be considered when determining spontaneity.
- Mon Feb 01, 2016 2:11 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Cell Diagram
- Replies: 1
- Views: 273
Cell Diagram
Can somebody clarify the role of the salt bridge in an electrochemical cell? Thank you!
- Tue Jan 26, 2016 2:12 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Units for Standard Enthalpies of Formation
- Replies: 1
- Views: 335
Units for Standard Enthalpies of Formation
When calculating the enthalpy of a reaction using standard enthalpies of formation, are the units kJ or kJ/mol?
- Tue Jan 19, 2016 3:01 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Clarification on Heat Capacity and Specific Heat Capacity
- Replies: 3
- Views: 653
Re: Clarification on Heat Capacity and Specific Heat Capacit
Hi, Yes, heat capacity is an extensive property, meaning that the heat required to increase a substance by 1 degree Celsius depends on the amount of substance. However, specific heat capacity is an intensive property, so it is not dependent on the amount of substance. The specific heat capacities fo...
- Tue Jan 12, 2016 9:23 pm
- Forum: Phase Changes & Related Calculations
- Topic: Molar Heat Capacity for Gases
- Replies: 2
- Views: 418
Molar Heat Capacity for Gases
Why are there two different molar heat capacities for gases?
- Mon Jan 04, 2016 11:22 pm
- Forum: Phase Changes & Related Calculations
- Topic: Temperature Vs. Heat
- Replies: 5
- Views: 1041
Temperature Vs. Heat
Why is temperature a state property and not heat?
- Mon Nov 23, 2015 3:44 pm
- Forum: Trends in The Periodic Table
- Topic: Video: Periodic Trends-Electronegativity/Ionization Energy
- Replies: 2
- Views: 635
Re: Video: Periodic Trends-Electronegativity/Ionization Ener
Here is the video in mp4 format.
- Wed Nov 18, 2015 4:30 pm
- Forum: Naming
- Topic: Writing out a Coordination Compund
- Replies: 1
- Views: 328
Writing out a Coordination Compund
If I were to write the formula for tetraamminechloronitrocobalt(lll)chloride, how do I know in which order to write the ligands? Does the order matter? For example, [Co(NH3)4(NO2)Cl]Cl vs. [Co(NO2)(NH3)4Cl]Cl?
- Wed Nov 18, 2015 4:21 pm
- Forum: Naming
- Topic: Naming in textbook problem 29. d)
- Replies: 2
- Views: 408
Re: Naming in textbook problem 29. d)
It is not incorrect to put mono-, it just isn't used commonly. It is similar to the way we write the term x in math instead of 1x. We just assume the 1 is there.
- Fri Nov 06, 2015 1:40 pm
- Forum: Naming
- Topic: Coordination Compound and Coordination Complex
- Replies: 2
- Views: 327
Coordination Compound and Coordination Complex
Is there a difference between a coordination compound and a coordination complex or are they the same thing?
- Fri Oct 30, 2015 4:45 pm
- Forum: Hybridization
- Topic: hybridization
- Replies: 2
- Views: 468
Re: hybridization
Hybridization allows one to understand why a molecule has sigma bonds or pi bonds and gives a better representation of how the orbitals are interacting with one another, so it should not be considered as a revision, but as a visual tool of what is actually taking place.
- Fri Oct 23, 2015 5:42 pm
- Forum: Dipole Moments
- Topic: Polarity
- Replies: 1
- Views: 402
Polarity
How do you determine polarity?
- Fri Oct 23, 2015 2:12 pm
- Forum: Resonance Structures
- Topic: Resonance
- Replies: 2
- Views: 583
Resonance
How do I know if a Lewis Structure will have resonance?
- Fri Oct 09, 2015 4:43 pm
- Forum: Molarity, Solutions, Dilutions
- Topic: G.21
- Replies: 1
- Views: 465
G.21
Can I please have some help with this problem?
A solution is prepared by dissolving 0.500 g of KCL, 0.500 g of K2S, and 0.500 g of K3PO4 in 500. mL of water. What is the concentration in the final solution of (a) potassium ions; (b) sulfide ions?
Thanks!
A solution is prepared by dissolving 0.500 g of KCL, 0.500 g of K2S, and 0.500 g of K3PO4 in 500. mL of water. What is the concentration in the final solution of (a) potassium ions; (b) sulfide ions?
Thanks!
- Fri Oct 02, 2015 1:28 pm
- Forum: Properties of Electrons
- Topic: Diffraction Patterns
- Replies: 1
- Views: 653
Diffraction Patterns
This question is from the Wave Properties of Electrons and The DeBroglie Equation Module Assessment: When neutrons pass through a crystal is a diffraction pattern observed? I'm not sure whether neutrons display a diffraction pattern or not.