Is the prefix "iso" included if we are listing a name alphabetically?
For example, would a molecule be called:
1,1-dimethyl-2-isopropyl-cyclopentane
OR
2-isopropyl-1,1-dimethyl-cyclopentane
In the solutions manual it states that the second way of writing it is correct.
Search found 25 matches
- Sat Mar 18, 2017 3:28 pm
- Forum: *Identifying Primary, Secondary, Tertiary, Quaternary Carbons, Hydrogens, Nitrogens
- Topic: Naming Order (Iso)
- Replies: 1
- Views: 1323
- Tue Mar 14, 2017 9:58 pm
- Forum: Photoelectric Effect
- Topic: Possible Future Class Demo [ENDORSED]
- Replies: 1
- Views: 661
Possible Future Class Demo [ENDORSED]
@Professor Lavelle, I just stumbled across this and thought it would be a cool short demo to describe the photoelectric effect. Check out this video: https://www.youtube.com/watch?v=wlZGHvhxrgI In theory, a red laser pointer should cause a lesser glow in the dark effect, as opposed to a green or vio...
- Sun Mar 12, 2017 7:58 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Quiz 3 Winter 2017
- Replies: 183
- Views: 28985
Re: Quiz 3 Winter 2017
will the answers to the quiz be posted?
- Thu Mar 09, 2017 10:47 pm
- Forum: General Science Questions
- Topic: DNA
- Replies: 1
- Views: 643
DNA
Just out of curiosity, is DNA considered one gigantic organic molecule? How exactly would we classify something as complex as DNA... as in what are the limits to naming certain molecules?
- Thu Feb 23, 2017 1:01 am
- Forum: Calculating pH or pOH for Strong & Weak Acids & Bases
- Topic: How can we calculate the pH of a solution if we dilute with water?
- Replies: 1
- Views: 2887
How can we calculate the pH of a solution if we dilute with water?
How can we calculate the pH of a solution if we dilute with water?
For example, if we assume that we have a weak monoprotic acid (pKa = 5.76, Ka= 1.74x10-6),
How would we calculate the pH after we take a 5 mL sample of 0.010 M weak acid, and dilute it with 45 mL of water?
For example, if we assume that we have a weak monoprotic acid (pKa = 5.76, Ka= 1.74x10-6),
How would we calculate the pH after we take a 5 mL sample of 0.010 M weak acid, and dilute it with 45 mL of water?
- Wed Feb 15, 2017 12:22 am
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Midterm 2014 Question 8
- Replies: 4
- Views: 793
Re: Midterm 2014 Question 8
Why is Ka=sqrt(K)??
- Tue Feb 14, 2017 4:03 pm
- Forum: Interesting Applications: Rechargeable Batteries (Cell Phones, Notebooks, Cars), Fuel Cells (Space Shuttle), Photovoltaic Cells (Solar Panels), Electrolysis, Rust
- Topic: Electroplating
- Replies: 2
- Views: 629
Electroplating
How exactly does what we have learned in class relate to electroplating?
How would it work in terms of Copper and an acid?
How would it work in terms of Copper and an acid?
- Tue Feb 14, 2017 3:57 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: What's the difference between a Galvanic and Voltaic Cell?
- Replies: 1
- Views: 677
What's the difference between a Galvanic and Voltaic Cell?
What's the difference between a Galvanic and Voltaic Cell?
Are both simply terms to express the same concept?
Are both simply terms to express the same concept?
- Thu Feb 02, 2017 8:06 pm
- Forum: Calculating Work of Expansion
- Topic: Amount of work done
- Replies: 2
- Views: 677
Amount of work done
Do our values calculated for work grant the maximum theoretical value one can get or simply a guaranteed value that is experimentally tested, and could be replicated?
- Thu Jan 26, 2017 8:18 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Graph
- Replies: 2
- Views: 682
Re: Graph
Pretty helpful to visualize this. Thanks
- Thu Jan 19, 2017 8:06 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Modules
- Replies: 2
- Views: 581
Modules
Will there be any modules on the Chem 14B website (similar to how they were in Chem 14A)?
- Tue Nov 29, 2016 9:44 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Equilibrium Composition and ICE tables
- Replies: 1
- Views: 587
Re: Equilibrium Composition and ICE tables
K is the general term for equilibrium, and the subscript determines the type of equilibrium. The equilibrium concentration (K c ) basically determines the concentration(mol/L or M) values of any given reactant or product. If K>1, then the concentration of products is higher than reactants, since Kc=...
- Mon Nov 28, 2016 11:42 pm
- Forum: Ideal Gases
- Topic: Gas Constant Conversion Factors
- Replies: 1
- Views: 852
Gas Constant Conversion Factors
Can someone explain how the gas constant (R) 8.206x10-2L*atm*K-1*mol-1 is converted to 8.206x10-5m3atm*K-1*mol-1?
Or in other words, whats the relation between 1 Liter (L) and 1 meter^3 (m3)
Or in other words, whats the relation between 1 Liter (L) and 1 meter^3 (m3)
- Mon Nov 28, 2016 9:58 pm
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: If the concentration of a reactant and product do not change with time, will their ratio change with time? [ENDORSED]
- Replies: 1
- Views: 441
If the concentration of a reactant and product do not change with time, will their ratio change with time? [ENDORSED]
If the concentration of a reactant and product do not change with time, will their ratio change with time?
Would anyone be able to state and explain their answer? I'm a little confused about this.
Would anyone be able to state and explain their answer? I'm a little confused about this.
- Mon Nov 28, 2016 9:41 pm
- Forum: Conjugate Acids & Bases
- Topic: General Question Regarding Acids/Bases [ENDORSED]
- Replies: 1
- Views: 428
General Question Regarding Acids/Bases [ENDORSED]
Is a strong acid such as pure HCl technically considered non-acidic when it is not associated with water or other compounds?
Does HCl only become acidic when it comes into contact with water since that is the point in time at which HCl gives off a H+ ion?
Does HCl only become acidic when it comes into contact with water since that is the point in time at which HCl gives off a H+ ion?
- Tue Nov 22, 2016 7:00 pm
- Forum: Properties & Structures of Inorganic & Organic Acids
- Topic: Oxoacids
- Replies: 2
- Views: 680
Re: Oxoacids
ClOH is more acidic than IOH because Cl has a higher electronegativity than I, and as a result is able to stabilize the molecule better.
- Sun Nov 13, 2016 5:10 pm
- Forum: Administrative Questions and Class Announcements
- Topic: When will the detailed midterm answers be released?
- Replies: 2
- Views: 1959
Re: When will the detailed midterm answers be released?
Perfect, found it. Thank you!
- Sun Nov 13, 2016 4:55 pm
- Forum: Administrative Questions and Class Announcements
- Topic: When will the detailed midterm answers be released?
- Replies: 2
- Views: 1959
When will the detailed midterm answers be released?
In class, Professor Lavelle said that he will be releasing the answers to the midterm. Does anyone know if/where he has posted them?
Thanks
Thanks
- Sat Nov 12, 2016 2:07 pm
- Forum: Naming
- Topic: Monodentate vs. Polydentate [ENDORSED]
- Replies: 1
- Views: 436
Monodentate vs. Polydentate [ENDORSED]
What is the most efficient way to differentiate between mono- and poly- dentate by only looking at the chemical name of the compound?
- Tue Nov 01, 2016 10:02 pm
- Forum: Dipole Moments
- Topic: Polarity
- Replies: 5
- Views: 864
Re: Polarity
You have to draw the VSEPR model and figure out the molecular shape of the molecule. After that, you determine the dipole moments based on the electronegativity of the different atoms (the atom with higher electronegativity pulls electrons towards itself \delta - ). Typically, if there are different...
- Sun Oct 30, 2016 10:32 pm
- Forum: Dipole Moments
- Topic: Polar and Non-polar bond
- Replies: 8
- Views: 2080
Re: Polar and Non-polar bond
Do you guys know if we will have to memorize the exact electronegativity values for the main elements or can we just determine polarity by assuming trends in electronegativity to be true
- Sun Oct 23, 2016 4:37 pm
- Forum: Determining Molecular Shape (VSEPR)
- Topic: Sigma and Pi Bonds
- Replies: 2
- Views: 682
Sigma and Pi Bonds
What exactly are Sigma and Pi bonds?
For our Quiz #2 preparation (fall 2014), the first question states:
How many sigma and how many pi bonds are present in H3CCHCHCH2OH?
how would we calculate the number of sigma/pi bonds?
For our Quiz #2 preparation (fall 2014), the first question states:
How many sigma and how many pi bonds are present in H3CCHCHCH2OH?
how would we calculate the number of sigma/pi bonds?
- Sun Oct 16, 2016 3:38 pm
- Forum: Einstein Equation
- Topic: General Question about Joules [ENDORSED]
- Replies: 7
- Views: 1609
General Question about Joules [ENDORSED]
So, I understand that a Joule is a measure of energy. 1 Joule is also equal to 1 kg*m^2/s^2, but what exactly does this mean? Just from looking at it, I would assume that 1 Joule of energy is the equivalent force to accelerate 1 kg for 1 meter (?), but if anyone knows the true definition of a Joule ...
- Thu Oct 06, 2016 8:00 pm
- Forum: Significant Figures
- Topic: Quiz 1 Prep Fall 2014 #9 [ENDORSED]
- Replies: 2
- Views: 2356
Re: Quiz 1 Prep Fall 2014 #9 [ENDORSED]
From the information you have given us, your answer seems to have to correct amount of sig-figs.
- Mon Sep 26, 2016 8:44 pm
- Forum: Significant Figures
- Topic: Easy Way to Calculate Sigfigs
- Replies: 6
- Views: 1524
Re: Easy Way to Calculate Sigfigs
If a value has decimals that are zeroes (such as 1500.00), would that be considered having a decimal present or absent? If your value is 1500.00, the decimal is present and the full value is used to show that your answer is significant (i.e. if your value was 1499.996 prior to rounding, and the que...